diff --git a/beacon/engine/errors.go b/beacon/engine/errors.go
index b2f311392..769001b9e 100644
--- a/beacon/engine/errors.go
+++ b/beacon/engine/errors.go
@@ -74,12 +74,11 @@ var (
 	//   - newPayloadV1: if the payload was accepted, but not processed (side chain)
 	ACCEPTED = "ACCEPTED"
 
-	INVALIDBLOCKHASH = "INVALID_BLOCK_HASH"
-
 	GenericServerError       = &EngineAPIError{code: -32000, msg: "Server error"}
 	UnknownPayload           = &EngineAPIError{code: -38001, msg: "Unknown payload"}
 	InvalidForkChoiceState   = &EngineAPIError{code: -38002, msg: "Invalid forkchoice state"}
 	InvalidPayloadAttributes = &EngineAPIError{code: -38003, msg: "Invalid payload attributes"}
+	TooLargeRequest          = &EngineAPIError{code: -38004, msg: "Too large request"}
 	InvalidParams            = &EngineAPIError{code: -32602, msg: "Invalid parameters"}
 
 	STATUS_INVALID         = ForkChoiceResponse{PayloadStatus: PayloadStatusV1{Status: INVALID}, PayloadID: nil}
diff --git a/build/checksums.txt b/build/checksums.txt
index d00d9bf96..1fb85d626 100644
--- a/build/checksums.txt
+++ b/build/checksums.txt
@@ -41,3 +41,6 @@ c4f58b7e227b9fd41f0e9310dc83f4a4e7d026598e2f6e95b78761081a6d9bd2  golangci-lint-
 eb57f9bcb56646f2e3d6ccaf02ec227815fb05077b2e0b1bf9e755805acdc2b9  golangci-lint-1.51.1-windows-arm64.zip
 bce02f7232723cb727755ee11f168a700a00896a25d37f87c4b173bce55596b4  golangci-lint-1.51.1-windows-armv6.zip
 cf6403f84707ce8c98664736772271bc8874f2e760c2fd0f00cf3e85963507e9  golangci-lint-1.51.1-windows-armv7.zip
+
+# This is the builder on PPA that will build Go itself (inception-y), don't modify!
+d7f0013f82e6d7f862cc6cb5c8cdb48eef5f2e239b35baa97e2f1a7466043767  go1.19.6.src.tar.gz
diff --git a/build/ci.go b/build/ci.go
index 173dc7cc0..2aad2ac52 100644
--- a/build/ci.go
+++ b/build/ci.go
@@ -128,7 +128,7 @@ var (
 		"focal":   "golang-go",   // EOL: 04/2030
 		"jammy":   "golang-go",   // EOL: 04/2032
 		"kinetic": "golang-go",   // EOL: 07/2023
-		//"lunar": "golang-go",  // EOL: 01/2024
+		"lunar":   "golang-go",   // EOL: 01/2024
 	}
 
 	debGoBootPaths = map[string]string{
@@ -136,10 +136,18 @@ var (
 		"golang-go":   "/usr/lib/go",
 	}
 
-	// This is the version of go that will be downloaded by
+	// This is the version of Go that will be downloaded by
 	//
 	//     go run ci.go install -dlgo
 	dlgoVersion = "1.20.1"
+
+	// This is the version of Go that will be used to bootstrap the PPA builder.
+	//
+	// This version is fine to be old and full of security holes, we just use it
+	// to build the latest Go. Don't change it. If it ever becomes insufficient,
+	// we need to switch over to a recursive builder to jumpt across supported
+	// versions.
+	gobootVersion = "1.19.6"
 )
 
 var GOBIN, _ = filepath.Abs(filepath.Join("build", "bin"))
@@ -655,10 +663,11 @@ func doDebianSource(cmdline []string) {
 		gpg.Stdin = bytes.NewReader(key)
 		build.MustRun(gpg)
 	}
-
-	// Download and verify the Go source package.
-	gobundle := downloadGoSources(*cachedir)
-
+	// Download and verify the Go source packages.
+	var (
+		gobootbundle = downloadGoBootstrapSources(*cachedir)
+		gobundle     = downloadGoSources(*cachedir)
+	)
 	// Download all the dependencies needed to build the sources and run the ci script
 	srcdepfetch := tc.Go("mod", "download")
 	srcdepfetch.Env = append(srcdepfetch.Env, "GOPATH="+filepath.Join(*workdir, "modgopath"))
@@ -675,12 +684,19 @@ func doDebianSource(cmdline []string) {
 			meta := newDebMetadata(distro, goboot, *signer, env, now, pkg.Name, pkg.Version, pkg.Executables)
 			pkgdir := stageDebianSource(*workdir, meta)
 
-			// Add Go source code
+			// Add bootstrapper Go source code
+			if err := build.ExtractArchive(gobootbundle, pkgdir); err != nil {
+				log.Fatalf("Failed to extract bootstrapper Go sources: %v", err)
+			}
+			if err := os.Rename(filepath.Join(pkgdir, "go"), filepath.Join(pkgdir, ".goboot")); err != nil {
+				log.Fatalf("Failed to rename bootstrapper Go source folder: %v", err)
+			}
+			// Add builder Go source code
 			if err := build.ExtractArchive(gobundle, pkgdir); err != nil {
-				log.Fatalf("Failed to extract Go sources: %v", err)
+				log.Fatalf("Failed to extract builder Go sources: %v", err)
 			}
 			if err := os.Rename(filepath.Join(pkgdir, "go"), filepath.Join(pkgdir, ".go")); err != nil {
-				log.Fatalf("Failed to rename Go source folder: %v", err)
+				log.Fatalf("Failed to rename builder Go source folder: %v", err)
 			}
 			// Add all dependency modules in compressed form
 			os.MkdirAll(filepath.Join(pkgdir, ".mod", "cache"), 0755)
@@ -709,6 +725,19 @@ func doDebianSource(cmdline []string) {
 	}
 }
 
+// downloadGoBootstrapSources downloads the Go source tarball that will be used
+// to bootstrap the builder Go.
+func downloadGoBootstrapSources(cachedir string) string {
+	csdb := build.MustLoadChecksums("build/checksums.txt")
+	file := fmt.Sprintf("go%s.src.tar.gz", gobootVersion)
+	url := "https://dl.google.com/go/" + file
+	dst := filepath.Join(cachedir, file)
+	if err := csdb.DownloadFile(url, dst); err != nil {
+		log.Fatal(err)
+	}
+	return dst
+}
+
 // downloadGoSources downloads the Go source tarball.
 func downloadGoSources(cachedir string) string {
 	csdb := build.MustLoadChecksums("build/checksums.txt")
diff --git a/build/deb/ethereum/deb.rules b/build/deb/ethereum/deb.rules
index 0677ef91e..475e628b2 100644
--- a/build/deb/ethereum/deb.rules
+++ b/build/deb/ethereum/deb.rules
@@ -16,7 +16,11 @@ override_dh_auto_build:
 	# We can't download a fresh Go within Launchpad, so we're shipping and building
 	# one on the fly. However, we can't build it inside the go-ethereum folder as
 	# bootstrapping clashes with go modules, so build in a sibling folder.
-	(mv .go ../ && cd ../.go/src && ./make.bash)
+	#
+	# We're also shipping the bootstrapper as of Go 1.20 as it had minimum version
+	# requirements opposed to older versions of Go.
+	(mv .goboot ../ && cd ../.goboot/src && ./make.bash)
+	(mv .go ../ && cd ../.go/src && GOROOT_BOOTSTRAP=`pwd`/../../.goboot ./make.bash)
 
 	# We can't download external go modules within Launchpad, so we're shipping the
 	# entire dependency source cache with go-ethereum.
diff --git a/cmd/devp2p/internal/ethtest/snap.go b/cmd/devp2p/internal/ethtest/snap.go
index 754d7850d..f947e4bc9 100644
--- a/cmd/devp2p/internal/ethtest/snap.go
+++ b/cmd/devp2p/internal/ethtest/snap.go
@@ -23,6 +23,7 @@ import (
 	"math/rand"
 
 	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/eth/protocols/snap"
 	"github.com/ethereum/go-ethereum/internal/utesting"
@@ -210,13 +211,6 @@ type byteCodesTest struct {
 	expHashes int
 }
 
-var (
-	// emptyRoot is the known root hash of an empty trie.
-	emptyRoot = common.HexToHash("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")
-	// emptyCode is the known hash of the empty EVM bytecode.
-	emptyCode = common.HexToHash("c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470")
-)
-
 // TestSnapGetByteCodes various forms of GetByteCodes requests.
 func (s *Suite) TestSnapGetByteCodes(t *utesting.T) {
 	// The halfchain import should yield these bytecodes
@@ -263,15 +257,15 @@ func (s *Suite) TestSnapGetByteCodes(t *utesting.T) {
 		},
 		// Empties
 		{
-			nBytes: 10000, hashes: []common.Hash{emptyRoot},
+			nBytes: 10000, hashes: []common.Hash{types.EmptyRootHash},
 			expHashes: 0,
 		},
 		{
-			nBytes: 10000, hashes: []common.Hash{emptyCode},
+			nBytes: 10000, hashes: []common.Hash{types.EmptyCodeHash},
 			expHashes: 1,
 		},
 		{
-			nBytes: 10000, hashes: []common.Hash{emptyCode, emptyCode, emptyCode},
+			nBytes: 10000, hashes: []common.Hash{types.EmptyCodeHash, types.EmptyCodeHash, types.EmptyCodeHash},
 			expHashes: 3,
 		},
 		// The existing bytecodes
@@ -363,7 +357,7 @@ func (s *Suite) TestSnapTrieNodes(t *utesting.T) {
 	for i := 1; i <= 65; i++ {
 		accPaths = append(accPaths, pathTo(i))
 	}
-	empty := emptyCode
+	empty := types.EmptyCodeHash
 	for i, tc := range []trieNodesTest{
 		{
 			root:      s.chain.RootAt(999),
diff --git a/cmd/evm/internal/t8ntool/block.go b/cmd/evm/internal/t8ntool/block.go
index 1140daa2c..7a9c4b610 100644
--- a/cmd/evm/internal/t8ntool/block.go
+++ b/cmd/evm/internal/t8ntool/block.go
@@ -120,8 +120,8 @@ func (i *bbInput) ToBlock() *types.Block {
 		UncleHash:       types.EmptyUncleHash,
 		Coinbase:        common.Address{},
 		Root:            i.Header.Root,
-		TxHash:          types.EmptyRootHash,
-		ReceiptHash:     types.EmptyRootHash,
+		TxHash:          types.EmptyTxsHash,
+		ReceiptHash:     types.EmptyReceiptsHash,
 		Bloom:           i.Header.Bloom,
 		Difficulty:      common.Big0,
 		Number:          i.Header.Number,
diff --git a/cmd/geth/config.go b/cmd/geth/config.go
index 61b7ed5ec..0b856d1c1 100644
--- a/cmd/geth/config.go
+++ b/cmd/geth/config.go
@@ -47,10 +47,10 @@ var (
 	dumpConfigCommand = &cli.Command{
 		Action:      dumpConfig,
 		Name:        "dumpconfig",
-		Usage:       "Show configuration values",
-		ArgsUsage:   "",
+		Usage:       "Export configuration values in a TOML format",
+		ArgsUsage:   "<dumpfile (optional)>",
 		Flags:       flags.Merge(nodeFlags, rpcFlags),
-		Description: `The dumpconfig command shows configuration values.`,
+		Description: `Export configuration values in TOML format (to stdout by default).`,
 	}
 
 	configFileFlag = &cli.StringFlag{
diff --git a/cmd/geth/snapshot.go b/cmd/geth/snapshot.go
index 7175bb953..0759341fd 100644
--- a/cmd/geth/snapshot.go
+++ b/cmd/geth/snapshot.go
@@ -38,14 +38,6 @@ import (
 	cli "github.com/urfave/cli/v2"
 )
 
-var (
-	// emptyRoot is the known root hash of an empty trie.
-	emptyRoot = common.HexToHash("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")
-
-	// emptyCode is the known hash of the empty EVM bytecode.
-	emptyCode = crypto.Keccak256(nil)
-)
-
 var (
 	snapshotCommand = &cli.Command{
 		Name:        "snapshot",
@@ -308,7 +300,7 @@ func traverseState(ctx *cli.Context) error {
 			log.Error("Invalid account encountered during traversal", "err", err)
 			return err
 		}
-		if acc.Root != emptyRoot {
+		if acc.Root != types.EmptyRootHash {
 			id := trie.StorageTrieID(root, common.BytesToHash(accIter.Key), acc.Root)
 			storageTrie, err := trie.NewStateTrie(id, triedb)
 			if err != nil {
@@ -324,7 +316,7 @@ func traverseState(ctx *cli.Context) error {
 				return storageIter.Err
 			}
 		}
-		if !bytes.Equal(acc.CodeHash, emptyCode) {
+		if !bytes.Equal(acc.CodeHash, types.EmptyCodeHash.Bytes()) {
 			if !rawdb.HasCode(chaindb, common.BytesToHash(acc.CodeHash)) {
 				log.Error("Code is missing", "hash", common.BytesToHash(acc.CodeHash))
 				return errors.New("missing code")
@@ -423,7 +415,7 @@ func traverseRawState(ctx *cli.Context) error {
 				log.Error("Invalid account encountered during traversal", "err", err)
 				return errors.New("invalid account")
 			}
-			if acc.Root != emptyRoot {
+			if acc.Root != types.EmptyRootHash {
 				id := trie.StorageTrieID(root, common.BytesToHash(accIter.LeafKey()), acc.Root)
 				storageTrie, err := trie.NewStateTrie(id, triedb)
 				if err != nil {
@@ -461,7 +453,7 @@ func traverseRawState(ctx *cli.Context) error {
 					return storageIter.Error()
 				}
 			}
-			if !bytes.Equal(acc.CodeHash, emptyCode) {
+			if !bytes.Equal(acc.CodeHash, types.EmptyCodeHash.Bytes()) {
 				if !rawdb.HasCode(chaindb, common.BytesToHash(acc.CodeHash)) {
 					log.Error("Code is missing", "account", common.BytesToHash(accIter.LeafKey()))
 					return errors.New("missing code")
@@ -536,7 +528,7 @@ func dumpState(ctx *cli.Context) error {
 			CodeHash:  account.CodeHash,
 			SecureKey: accIt.Hash().Bytes(),
 		}
-		if !conf.SkipCode && !bytes.Equal(account.CodeHash, emptyCode) {
+		if !conf.SkipCode && !bytes.Equal(account.CodeHash, types.EmptyCodeHash.Bytes()) {
 			da.Code = rawdb.ReadCode(db, common.BytesToHash(account.CodeHash))
 		}
 		if !conf.SkipStorage {
diff --git a/common/math/big.go b/common/math/big.go
index 48427810e..1c2afa749 100644
--- a/common/math/big.go
+++ b/common/math/big.go
@@ -49,6 +49,17 @@ func NewHexOrDecimal256(x int64) *HexOrDecimal256 {
 	return &h
 }
 
+// UnmarshalJSON implements json.Unmarshaler.
+//
+// It is similar to UnmarshalText, but allows parsing real decimals too, not just
+// quoted decimal strings.
+func (i *HexOrDecimal256) UnmarshalJSON(input []byte) error {
+	if len(input) > 0 && input[0] == '"' {
+		input = input[1 : len(input)-1]
+	}
+	return i.UnmarshalText(input)
+}
+
 // UnmarshalText implements encoding.TextUnmarshaler.
 func (i *HexOrDecimal256) UnmarshalText(input []byte) error {
 	bigint, ok := ParseBig256(string(input))
diff --git a/common/math/integer.go b/common/math/integer.go
index 50d3eba1f..da01c0a08 100644
--- a/common/math/integer.go
+++ b/common/math/integer.go
@@ -41,6 +41,17 @@ const (
 // HexOrDecimal64 marshals uint64 as hex or decimal.
 type HexOrDecimal64 uint64
 
+// UnmarshalJSON implements json.Unmarshaler.
+//
+// It is similar to UnmarshalText, but allows parsing real decimals too, not just
+// quoted decimal strings.
+func (i *HexOrDecimal64) UnmarshalJSON(input []byte) error {
+	if len(input) > 0 && input[0] == '"' {
+		input = input[1 : len(input)-1]
+	}
+	return i.UnmarshalText(input)
+}
+
 // UnmarshalText implements encoding.TextUnmarshaler.
 func (i *HexOrDecimal64) UnmarshalText(input []byte) error {
 	int, ok := ParseUint64(string(input))
diff --git a/consensus/ethash/algorithm_test.go b/consensus/ethash/algorithm_test.go
index 88769d277..3ecd73068 100644
--- a/consensus/ethash/algorithm_test.go
+++ b/consensus/ethash/algorithm_test.go
@@ -709,11 +709,11 @@ func TestConcurrentDiskCacheGeneration(t *testing.T) {
 	block := types.NewBlockWithHeader(&types.Header{
 		Number:      big.NewInt(3311058),
 		ParentHash:  common.HexToHash("0xd783efa4d392943503f28438ad5830b2d5964696ffc285f338585e9fe0a37a05"),
-		UncleHash:   common.HexToHash("0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"),
+		UncleHash:   types.EmptyUncleHash,
 		Coinbase:    common.HexToAddress("0xc0ea08a2d404d3172d2add29a45be56da40e2949"),
 		Root:        common.HexToHash("0x77d14e10470b5850332524f8cd6f69ad21f070ce92dca33ab2858300242ef2f1"),
-		TxHash:      common.HexToHash("0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421"),
-		ReceiptHash: common.HexToHash("0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421"),
+		TxHash:      types.EmptyTxsHash,
+		ReceiptHash: types.EmptyReceiptsHash,
 		Difficulty:  big.NewInt(167925187834220),
 		GasLimit:    4015682,
 		GasUsed:     0,
diff --git a/core/bench_test.go b/core/bench_test.go
index 7fc8a760f..494998437 100644
--- a/core/bench_test.go
+++ b/core/bench_test.go
@@ -252,8 +252,8 @@ func makeChainForBench(db ethdb.Database, full bool, count uint64) {
 			ParentHash:  hash,
 			Difficulty:  big.NewInt(1),
 			UncleHash:   types.EmptyUncleHash,
-			TxHash:      types.EmptyRootHash,
-			ReceiptHash: types.EmptyRootHash,
+			TxHash:      types.EmptyTxsHash,
+			ReceiptHash: types.EmptyReceiptsHash,
 		}
 		hash = header.Hash()
 
diff --git a/core/blockchain.go b/core/blockchain.go
index bb41601f7..e9f970a57 100644
--- a/core/blockchain.go
+++ b/core/blockchain.go
@@ -1278,7 +1278,7 @@ func (bc *BlockChain) InsertReceiptChain(blockChain types.Blocks, receiptChain [
 	if stats.ignored > 0 {
 		context = append(context, []interface{}{"ignored", stats.ignored}...)
 	}
-	log.Info("Imported new block receipts", context...)
+	log.Debug("Imported new block receipts", context...)
 
 	return 0, nil
 }
diff --git a/core/genesis.go b/core/genesis.go
index 5a6c409e0..269c1486d 100644
--- a/core/genesis.go
+++ b/core/genesis.go
@@ -138,7 +138,7 @@ func (ga *GenesisAlloc) deriveHash() (common.Hash, error) {
 // flush is very similar with deriveHash, but the main difference is
 // all the generated states will be persisted into the given database.
 // Also, the genesis state specification will be flushed as well.
-func (ga *GenesisAlloc) flush(db ethdb.Database, triedb *trie.Database) error {
+func (ga *GenesisAlloc) flush(db ethdb.Database, triedb *trie.Database, blockhash common.Hash) error {
 	statedb, err := state.New(common.Hash{}, state.NewDatabaseWithNodeDB(db, triedb), nil)
 	if err != nil {
 		return err
@@ -166,15 +166,15 @@ func (ga *GenesisAlloc) flush(db ethdb.Database, triedb *trie.Database) error {
 	if err != nil {
 		return err
 	}
-	rawdb.WriteGenesisStateSpec(db, root, blob)
+	rawdb.WriteGenesisStateSpec(db, blockhash, blob)
 	return nil
 }
 
 // CommitGenesisState loads the stored genesis state with the given block
 // hash and commits it into the provided trie database.
-func CommitGenesisState(db ethdb.Database, triedb *trie.Database, hash common.Hash) error {
+func CommitGenesisState(db ethdb.Database, triedb *trie.Database, blockhash common.Hash) error {
 	var alloc GenesisAlloc
-	blob := rawdb.ReadGenesisStateSpec(db, hash)
+	blob := rawdb.ReadGenesisStateSpec(db, blockhash)
 	if len(blob) != 0 {
 		if err := alloc.UnmarshalJSON(blob); err != nil {
 			return err
@@ -186,7 +186,7 @@ func CommitGenesisState(db ethdb.Database, triedb *trie.Database, hash common.Ha
 		// - supported networks(mainnet, testnets), recover with defined allocations
 		// - private network, can't recover
 		var genesis *Genesis
-		switch hash {
+		switch blockhash {
 		case params.MainnetGenesisHash:
 			genesis = DefaultGenesisBlock()
 		case params.RinkebyGenesisHash:
@@ -202,7 +202,7 @@ func CommitGenesisState(db ethdb.Database, triedb *trie.Database, hash common.Ha
 			return errors.New("not found")
 		}
 	}
-	return alloc.flush(db, triedb)
+	return alloc.flush(db, triedb, blockhash)
 }
 
 // GenesisAccount is an account in the state of the genesis block.
@@ -467,7 +467,7 @@ func (g *Genesis) ToBlock() *types.Block {
 	}
 	var withdrawals []*types.Withdrawal
 	if g.Config != nil && g.Config.IsShanghai(g.Timestamp) {
-		head.WithdrawalsHash = &types.EmptyRootHash
+		head.WithdrawalsHash = &types.EmptyWithdrawalsHash
 		withdrawals = make([]*types.Withdrawal, 0)
 	}
 	return types.NewBlock(head, nil, nil, nil, trie.NewStackTrie(nil)).WithWithdrawals(withdrawals)
@@ -493,7 +493,7 @@ func (g *Genesis) Commit(db ethdb.Database, triedb *trie.Database) (*types.Block
 	// All the checks has passed, flush the states derived from the genesis
 	// specification as well as the specification itself into the provided
 	// database.
-	if err := g.Alloc.flush(db, triedb); err != nil {
+	if err := g.Alloc.flush(db, triedb, block.Hash()); err != nil {
 		return nil, err
 	}
 	rawdb.WriteTd(db, block.Hash(), block.NumberU64(), block.Difficulty())
diff --git a/core/headerchain.go b/core/headerchain.go
index d40d26f72..aed3c720c 100644
--- a/core/headerchain.go
+++ b/core/headerchain.go
@@ -389,7 +389,7 @@ func (hc *HeaderChain) InsertHeaderChain(chain []*types.Header, start time.Time,
 	if res.ignored > 0 {
 		context = append(context, []interface{}{"ignored", res.ignored}...)
 	}
-	log.Info("Imported new block headers", context...)
+	log.Debug("Imported new block headers", context...)
 	return res.status, err
 }
 
diff --git a/core/rawdb/accessors_chain.go b/core/rawdb/accessors_chain.go
index 9b90d8f20..e4dac3407 100644
--- a/core/rawdb/accessors_chain.go
+++ b/core/rawdb/accessors_chain.go
@@ -37,7 +37,7 @@ import (
 func ReadCanonicalHash(db ethdb.Reader, number uint64) common.Hash {
 	var data []byte
 	db.ReadAncients(func(reader ethdb.AncientReaderOp) error {
-		data, _ = reader.Ancient(chainFreezerHashTable, number)
+		data, _ = reader.Ancient(ChainFreezerHashTable, number)
 		if len(data) == 0 {
 			// Get it by hash from leveldb
 			data, _ = db.Get(headerHashKey(number))
@@ -334,7 +334,7 @@ func ReadHeaderRange(db ethdb.Reader, number uint64, count uint64) []rlp.RawValu
 	}
 	// read remaining from ancients
 	max := count * 700
-	data, err := db.AncientRange(chainFreezerHeaderTable, i+1-count, count, max)
+	data, err := db.AncientRange(ChainFreezerHeaderTable, i+1-count, count, max)
 	if err == nil && uint64(len(data)) == count {
 		// the data is on the order [h, h+1, .., n] -- reordering needed
 		for i := range data {
@@ -351,7 +351,7 @@ func ReadHeaderRLP(db ethdb.Reader, hash common.Hash, number uint64) rlp.RawValu
 		// First try to look up the data in ancient database. Extra hash
 		// comparison is necessary since ancient database only maintains
 		// the canonical data.
-		data, _ = reader.Ancient(chainFreezerHeaderTable, number)
+		data, _ = reader.Ancient(ChainFreezerHeaderTable, number)
 		if len(data) > 0 && crypto.Keccak256Hash(data) == hash {
 			return nil
 		}
@@ -427,7 +427,7 @@ func deleteHeaderWithoutNumber(db ethdb.KeyValueWriter, hash common.Hash, number
 // isCanon is an internal utility method, to check whether the given number/hash
 // is part of the ancient (canon) set.
 func isCanon(reader ethdb.AncientReaderOp, number uint64, hash common.Hash) bool {
-	h, err := reader.Ancient(chainFreezerHashTable, number)
+	h, err := reader.Ancient(ChainFreezerHashTable, number)
 	if err != nil {
 		return false
 	}
@@ -443,7 +443,7 @@ func ReadBodyRLP(db ethdb.Reader, hash common.Hash, number uint64) rlp.RawValue
 	db.ReadAncients(func(reader ethdb.AncientReaderOp) error {
 		// Check if the data is in ancients
 		if isCanon(reader, number, hash) {
-			data, _ = reader.Ancient(chainFreezerBodiesTable, number)
+			data, _ = reader.Ancient(ChainFreezerBodiesTable, number)
 			return nil
 		}
 		// If not, try reading from leveldb
@@ -458,7 +458,7 @@ func ReadBodyRLP(db ethdb.Reader, hash common.Hash, number uint64) rlp.RawValue
 func ReadCanonicalBodyRLP(db ethdb.Reader, number uint64) rlp.RawValue {
 	var data []byte
 	db.ReadAncients(func(reader ethdb.AncientReaderOp) error {
-		data, _ = reader.Ancient(chainFreezerBodiesTable, number)
+		data, _ = reader.Ancient(ChainFreezerBodiesTable, number)
 		if len(data) > 0 {
 			return nil
 		}
@@ -526,7 +526,7 @@ func ReadTdRLP(db ethdb.Reader, hash common.Hash, number uint64) rlp.RawValue {
 	db.ReadAncients(func(reader ethdb.AncientReaderOp) error {
 		// Check if the data is in ancients
 		if isCanon(reader, number, hash) {
-			data, _ = reader.Ancient(chainFreezerDifficultyTable, number)
+			data, _ = reader.Ancient(ChainFreezerDifficultyTable, number)
 			return nil
 		}
 		// If not, try reading from leveldb
@@ -586,7 +586,7 @@ func ReadReceiptsRLP(db ethdb.Reader, hash common.Hash, number uint64) rlp.RawVa
 	db.ReadAncients(func(reader ethdb.AncientReaderOp) error {
 		// Check if the data is in ancients
 		if isCanon(reader, number, hash) {
-			data, _ = reader.Ancient(chainFreezerReceiptTable, number)
+			data, _ = reader.Ancient(ChainFreezerReceiptTable, number)
 			return nil
 		}
 		// If not, try reading from leveldb
@@ -787,19 +787,19 @@ func WriteAncientBlocks(db ethdb.AncientWriter, blocks []*types.Block, receipts
 
 func writeAncientBlock(op ethdb.AncientWriteOp, block *types.Block, header *types.Header, receipts []*types.ReceiptForStorage, td *big.Int) error {
 	num := block.NumberU64()
-	if err := op.AppendRaw(chainFreezerHashTable, num, block.Hash().Bytes()); err != nil {
+	if err := op.AppendRaw(ChainFreezerHashTable, num, block.Hash().Bytes()); err != nil {
 		return fmt.Errorf("can't add block %d hash: %v", num, err)
 	}
-	if err := op.Append(chainFreezerHeaderTable, num, header); err != nil {
+	if err := op.Append(ChainFreezerHeaderTable, num, header); err != nil {
 		return fmt.Errorf("can't append block header %d: %v", num, err)
 	}
-	if err := op.Append(chainFreezerBodiesTable, num, block.Body()); err != nil {
+	if err := op.Append(ChainFreezerBodiesTable, num, block.Body()); err != nil {
 		return fmt.Errorf("can't append block body %d: %v", num, err)
 	}
-	if err := op.Append(chainFreezerReceiptTable, num, receipts); err != nil {
+	if err := op.Append(ChainFreezerReceiptTable, num, receipts); err != nil {
 		return fmt.Errorf("can't append block %d receipts: %v", num, err)
 	}
-	if err := op.Append(chainFreezerDifficultyTable, num, td); err != nil {
+	if err := op.Append(ChainFreezerDifficultyTable, num, td); err != nil {
 		return fmt.Errorf("can't append block %d total difficulty: %v", num, err)
 	}
 	return nil
diff --git a/core/rawdb/accessors_chain_test.go b/core/rawdb/accessors_chain_test.go
index f7f8d0b08..84eae1d90 100644
--- a/core/rawdb/accessors_chain_test.go
+++ b/core/rawdb/accessors_chain_test.go
@@ -113,8 +113,8 @@ func TestBlockStorage(t *testing.T) {
 	block := types.NewBlockWithHeader(&types.Header{
 		Extra:       []byte("test block"),
 		UncleHash:   types.EmptyUncleHash,
-		TxHash:      types.EmptyRootHash,
-		ReceiptHash: types.EmptyRootHash,
+		TxHash:      types.EmptyTxsHash,
+		ReceiptHash: types.EmptyReceiptsHash,
 	})
 	if entry := ReadBlock(db, block.Hash(), block.NumberU64()); entry != nil {
 		t.Fatalf("Non existent block returned: %v", entry)
@@ -161,8 +161,8 @@ func TestPartialBlockStorage(t *testing.T) {
 	block := types.NewBlockWithHeader(&types.Header{
 		Extra:       []byte("test block"),
 		UncleHash:   types.EmptyUncleHash,
-		TxHash:      types.EmptyRootHash,
-		ReceiptHash: types.EmptyRootHash,
+		TxHash:      types.EmptyTxsHash,
+		ReceiptHash: types.EmptyReceiptsHash,
 	})
 	// Store a header and check that it's not recognized as a block
 	WriteHeader(db, block.Header())
@@ -198,8 +198,8 @@ func TestBadBlockStorage(t *testing.T) {
 		Number:      big.NewInt(1),
 		Extra:       []byte("bad block"),
 		UncleHash:   types.EmptyUncleHash,
-		TxHash:      types.EmptyRootHash,
-		ReceiptHash: types.EmptyRootHash,
+		TxHash:      types.EmptyTxsHash,
+		ReceiptHash: types.EmptyReceiptsHash,
 	})
 	if entry := ReadBadBlock(db, block.Hash()); entry != nil {
 		t.Fatalf("Non existent block returned: %v", entry)
@@ -216,8 +216,8 @@ func TestBadBlockStorage(t *testing.T) {
 		Number:      big.NewInt(2),
 		Extra:       []byte("bad block two"),
 		UncleHash:   types.EmptyUncleHash,
-		TxHash:      types.EmptyRootHash,
-		ReceiptHash: types.EmptyRootHash,
+		TxHash:      types.EmptyTxsHash,
+		ReceiptHash: types.EmptyReceiptsHash,
 	})
 	WriteBadBlock(db, blockTwo)
 
@@ -235,8 +235,8 @@ func TestBadBlockStorage(t *testing.T) {
 			Number:      big.NewInt(int64(n)),
 			Extra:       []byte("bad block"),
 			UncleHash:   types.EmptyUncleHash,
-			TxHash:      types.EmptyRootHash,
-			ReceiptHash: types.EmptyRootHash,
+			TxHash:      types.EmptyTxsHash,
+			ReceiptHash: types.EmptyReceiptsHash,
 		})
 		WriteBadBlock(db, block)
 	}
@@ -446,8 +446,8 @@ func TestAncientStorage(t *testing.T) {
 		Number:      big.NewInt(0),
 		Extra:       []byte("test block"),
 		UncleHash:   types.EmptyUncleHash,
-		TxHash:      types.EmptyRootHash,
-		ReceiptHash: types.EmptyRootHash,
+		TxHash:      types.EmptyTxsHash,
+		ReceiptHash: types.EmptyReceiptsHash,
 	})
 	// Ensure nothing non-existent will be read
 	hash, number := block.Hash(), block.NumberU64()
@@ -889,8 +889,8 @@ func TestHeadersRLPStorage(t *testing.T) {
 			Number:      big.NewInt(int64(i)),
 			Extra:       []byte("test block"),
 			UncleHash:   types.EmptyUncleHash,
-			TxHash:      types.EmptyRootHash,
-			ReceiptHash: types.EmptyRootHash,
+			TxHash:      types.EmptyTxsHash,
+			ReceiptHash: types.EmptyReceiptsHash,
 			ParentHash:  pHash,
 		})
 		chain = append(chain, block)
diff --git a/core/rawdb/accessors_metadata.go b/core/rawdb/accessors_metadata.go
index 7a9e6442f..2ff29d1ad 100644
--- a/core/rawdb/accessors_metadata.go
+++ b/core/rawdb/accessors_metadata.go
@@ -82,15 +82,15 @@ func WriteChainConfig(db ethdb.KeyValueWriter, hash common.Hash, cfg *params.Cha
 }
 
 // ReadGenesisStateSpec retrieves the genesis state specification based on the
-// given genesis hash.
-func ReadGenesisStateSpec(db ethdb.KeyValueReader, hash common.Hash) []byte {
-	data, _ := db.Get(genesisStateSpecKey(hash))
+// given genesis (block-)hash.
+func ReadGenesisStateSpec(db ethdb.KeyValueReader, blockhash common.Hash) []byte {
+	data, _ := db.Get(genesisStateSpecKey(blockhash))
 	return data
 }
 
 // WriteGenesisStateSpec writes the genesis state specification into the disk.
-func WriteGenesisStateSpec(db ethdb.KeyValueWriter, hash common.Hash, data []byte) {
-	if err := db.Put(genesisStateSpecKey(hash), data); err != nil {
+func WriteGenesisStateSpec(db ethdb.KeyValueWriter, blockhash common.Hash, data []byte) {
+	if err := db.Put(genesisStateSpecKey(blockhash), data); err != nil {
 		log.Crit("Failed to store genesis state", "err", err)
 	}
 }
diff --git a/core/rawdb/ancient_scheme.go b/core/rawdb/ancient_scheme.go
index 047b504a2..b0428c5f5 100644
--- a/core/rawdb/ancient_scheme.go
+++ b/core/rawdb/ancient_scheme.go
@@ -18,30 +18,30 @@ package rawdb
 
 // The list of table names of chain freezer.
 const (
-	// chainFreezerHeaderTable indicates the name of the freezer header table.
-	chainFreezerHeaderTable = "headers"
+	// ChainFreezerHeaderTable indicates the name of the freezer header table.
+	ChainFreezerHeaderTable = "headers"
 
-	// chainFreezerHashTable indicates the name of the freezer canonical hash table.
-	chainFreezerHashTable = "hashes"
+	// ChainFreezerHashTable indicates the name of the freezer canonical hash table.
+	ChainFreezerHashTable = "hashes"
 
-	// chainFreezerBodiesTable indicates the name of the freezer block body table.
-	chainFreezerBodiesTable = "bodies"
+	// ChainFreezerBodiesTable indicates the name of the freezer block body table.
+	ChainFreezerBodiesTable = "bodies"
 
-	// chainFreezerReceiptTable indicates the name of the freezer receipts table.
-	chainFreezerReceiptTable = "receipts"
+	// ChainFreezerReceiptTable indicates the name of the freezer receipts table.
+	ChainFreezerReceiptTable = "receipts"
 
-	// chainFreezerDifficultyTable indicates the name of the freezer total difficulty table.
-	chainFreezerDifficultyTable = "diffs"
+	// ChainFreezerDifficultyTable indicates the name of the freezer total difficulty table.
+	ChainFreezerDifficultyTable = "diffs"
 )
 
 // chainFreezerNoSnappy configures whether compression is disabled for the ancient-tables.
 // Hashes and difficulties don't compress well.
 var chainFreezerNoSnappy = map[string]bool{
-	chainFreezerHeaderTable:     false,
-	chainFreezerHashTable:       true,
-	chainFreezerBodiesTable:     false,
-	chainFreezerReceiptTable:    false,
-	chainFreezerDifficultyTable: true,
+	ChainFreezerHeaderTable:     false,
+	ChainFreezerHashTable:       true,
+	ChainFreezerBodiesTable:     false,
+	ChainFreezerReceiptTable:    false,
+	ChainFreezerDifficultyTable: true,
 }
 
 // The list of identifiers of ancient stores.
diff --git a/core/rawdb/chain_freezer.go b/core/rawdb/chain_freezer.go
index 738295cfb..167afc388 100644
--- a/core/rawdb/chain_freezer.go
+++ b/core/rawdb/chain_freezer.go
@@ -55,8 +55,8 @@ type chainFreezer struct {
 }
 
 // newChainFreezer initializes the freezer for ancient chain data.
-func newChainFreezer(datadir string, namespace string, readonly bool, maxTableSize uint32, tables map[string]bool) (*chainFreezer, error) {
-	freezer, err := NewFreezer(datadir, namespace, readonly, maxTableSize, tables)
+func newChainFreezer(datadir string, namespace string, readonly bool) (*chainFreezer, error) {
+	freezer, err := NewChainFreezer(datadir, namespace, readonly)
 	if err != nil {
 		return nil, err
 	}
@@ -280,19 +280,19 @@ func (f *chainFreezer) freezeRange(nfdb *nofreezedb, number, limit uint64) (hash
 			}
 
 			// Write to the batch.
-			if err := op.AppendRaw(chainFreezerHashTable, number, hash[:]); err != nil {
+			if err := op.AppendRaw(ChainFreezerHashTable, number, hash[:]); err != nil {
 				return fmt.Errorf("can't write hash to Freezer: %v", err)
 			}
-			if err := op.AppendRaw(chainFreezerHeaderTable, number, header); err != nil {
+			if err := op.AppendRaw(ChainFreezerHeaderTable, number, header); err != nil {
 				return fmt.Errorf("can't write header to Freezer: %v", err)
 			}
-			if err := op.AppendRaw(chainFreezerBodiesTable, number, body); err != nil {
+			if err := op.AppendRaw(ChainFreezerBodiesTable, number, body); err != nil {
 				return fmt.Errorf("can't write body to Freezer: %v", err)
 			}
-			if err := op.AppendRaw(chainFreezerReceiptTable, number, receipts); err != nil {
+			if err := op.AppendRaw(ChainFreezerReceiptTable, number, receipts); err != nil {
 				return fmt.Errorf("can't write receipts to Freezer: %v", err)
 			}
-			if err := op.AppendRaw(chainFreezerDifficultyTable, number, td); err != nil {
+			if err := op.AppendRaw(ChainFreezerDifficultyTable, number, td); err != nil {
 				return fmt.Errorf("can't write td to Freezer: %v", err)
 			}
 
diff --git a/core/rawdb/chain_iterator.go b/core/rawdb/chain_iterator.go
index 85ad88e29..102943516 100644
--- a/core/rawdb/chain_iterator.go
+++ b/core/rawdb/chain_iterator.go
@@ -50,7 +50,7 @@ func InitDatabaseFromFreezer(db ethdb.Database) {
 		if i+count > frozen {
 			count = frozen - i
 		}
-		data, err := db.AncientRange(chainFreezerHashTable, i, count, 32*count)
+		data, err := db.AncientRange(ChainFreezerHashTable, i, count, 32*count)
 		if err != nil {
 			log.Crit("Failed to init database from freezer", "err", err)
 		}
diff --git a/core/rawdb/database.go b/core/rawdb/database.go
index ef80c251a..5b7299f38 100644
--- a/core/rawdb/database.go
+++ b/core/rawdb/database.go
@@ -200,7 +200,7 @@ func resolveChainFreezerDir(ancient string) string {
 // where the chain freezer can be opened.
 func NewDatabaseWithFreezer(db ethdb.KeyValueStore, ancient string, namespace string, readonly bool) (ethdb.Database, error) {
 	// Create the idle freezer instance
-	frdb, err := newChainFreezer(resolveChainFreezerDir(ancient), namespace, readonly, freezerTableSize, chainFreezerNoSnappy)
+	frdb, err := newChainFreezer(resolveChainFreezerDir(ancient), namespace, readonly)
 	if err != nil {
 		return nil, err
 	}
@@ -231,7 +231,7 @@ func NewDatabaseWithFreezer(db ethdb.KeyValueStore, ancient string, namespace st
 			// If the freezer already contains something, ensure that the genesis blocks
 			// match, otherwise we might mix up freezers across chains and destroy both
 			// the freezer and the key-value store.
-			frgenesis, err := frdb.Ancient(chainFreezerHashTable, 0)
+			frgenesis, err := frdb.Ancient(ChainFreezerHashTable, 0)
 			if err != nil {
 				return nil, fmt.Errorf("failed to retrieve genesis from ancient %v", err)
 			} else if !bytes.Equal(kvgenesis, frgenesis) {
diff --git a/core/rawdb/freezer.go b/core/rawdb/freezer.go
index 4d682f25d..e09b81812 100644
--- a/core/rawdb/freezer.go
+++ b/core/rawdb/freezer.go
@@ -79,6 +79,12 @@ type Freezer struct {
 	closeOnce    sync.Once
 }
 
+// NewChainFreezer is a small utility method around NewFreezer that sets the
+// default parameters for the chain storage.
+func NewChainFreezer(datadir string, namespace string, readonly bool) (*Freezer, error) {
+	return NewFreezer(datadir, namespace, readonly, freezerTableSize, chainFreezerNoSnappy)
+}
+
 // NewFreezer creates a freezer instance for maintaining immutable ordered
 // data according to the given parameters.
 //
diff --git a/core/state/iterator.go b/core/state/iterator.go
index ba7efd465..29c4abfc2 100644
--- a/core/state/iterator.go
+++ b/core/state/iterator.go
@@ -117,7 +117,7 @@ func (it *NodeIterator) step() error {
 	if !it.dataIt.Next(true) {
 		it.dataIt = nil
 	}
-	if !bytes.Equal(account.CodeHash, emptyCodeHash) {
+	if !bytes.Equal(account.CodeHash, types.EmptyCodeHash.Bytes()) {
 		it.codeHash = common.BytesToHash(account.CodeHash)
 		addrHash := common.BytesToHash(it.stateIt.LeafKey())
 		it.code, err = it.state.db.ContractCode(addrHash, common.BytesToHash(account.CodeHash))
diff --git a/core/state/pruner/pruner.go b/core/state/pruner/pruner.go
index d1ffc4f94..2bd5658e0 100644
--- a/core/state/pruner/pruner.go
+++ b/core/state/pruner/pruner.go
@@ -31,7 +31,6 @@ import (
 	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/state/snapshot"
 	"github.com/ethereum/go-ethereum/core/types"
-	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/rlp"
@@ -55,14 +54,6 @@ const (
 	rangeCompactionThreshold = 100000
 )
 
-var (
-	// emptyRoot is the known root hash of an empty trie.
-	emptyRoot = common.HexToHash("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")
-
-	// emptyCode is the known hash of the empty EVM bytecode.
-	emptyCode = crypto.Keccak256(nil)
-)
-
 // Config includes all the configurations for pruning.
 type Config struct {
 	Datadir   string // The directory of the state database
@@ -446,7 +437,7 @@ func extractGenesis(db ethdb.Database, stateBloom *stateBloom) error {
 			if err := rlp.DecodeBytes(accIter.LeafBlob(), &acc); err != nil {
 				return err
 			}
-			if acc.Root != emptyRoot {
+			if acc.Root != types.EmptyRootHash {
 				id := trie.StorageTrieID(genesis.Root(), common.BytesToHash(accIter.LeafKey()), acc.Root)
 				storageTrie, err := trie.NewStateTrie(id, trie.NewDatabase(db))
 				if err != nil {
@@ -463,7 +454,7 @@ func extractGenesis(db ethdb.Database, stateBloom *stateBloom) error {
 					return storageIter.Error()
 				}
 			}
-			if !bytes.Equal(acc.CodeHash, emptyCode) {
+			if !bytes.Equal(acc.CodeHash, types.EmptyCodeHash.Bytes()) {
 				stateBloom.Put(acc.CodeHash, nil)
 			}
 		}
diff --git a/core/state/snapshot/account.go b/core/state/snapshot/account.go
index b92e94295..b5634972a 100644
--- a/core/state/snapshot/account.go
+++ b/core/state/snapshot/account.go
@@ -21,6 +21,7 @@ import (
 	"math/big"
 
 	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/rlp"
 )
 
@@ -41,10 +42,10 @@ func SlimAccount(nonce uint64, balance *big.Int, root common.Hash, codehash []by
 		Nonce:   nonce,
 		Balance: balance,
 	}
-	if root != emptyRoot {
+	if root != types.EmptyRootHash {
 		slim.Root = root[:]
 	}
-	if !bytes.Equal(codehash, emptyCode[:]) {
+	if !bytes.Equal(codehash, types.EmptyCodeHash[:]) {
 		slim.CodeHash = codehash
 	}
 	return slim
@@ -68,10 +69,10 @@ func FullAccount(data []byte) (Account, error) {
 		return Account{}, err
 	}
 	if len(account.Root) == 0 {
-		account.Root = emptyRoot[:]
+		account.Root = types.EmptyRootHash[:]
 	}
 	if len(account.CodeHash) == 0 {
-		account.CodeHash = emptyCode[:]
+		account.CodeHash = types.EmptyCodeHash[:]
 	}
 	return account, nil
 }
diff --git a/core/state/snapshot/conversion.go b/core/state/snapshot/conversion.go
index ebad28fc7..ed7cb963a 100644
--- a/core/state/snapshot/conversion.go
+++ b/core/state/snapshot/conversion.go
@@ -28,6 +28,7 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/rawdb"
+	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/rlp"
@@ -74,7 +75,7 @@ func GenerateTrie(snaptree *Tree, root common.Hash, src ethdb.Database, dst ethd
 	scheme := snaptree.triedb.Scheme()
 	got, err := generateTrieRoot(dst, scheme, acctIt, common.Hash{}, stackTrieGenerate, func(dst ethdb.KeyValueWriter, accountHash, codeHash common.Hash, stat *generateStats) (common.Hash, error) {
 		// Migrate the code first, commit the contract code into the tmp db.
-		if codeHash != emptyCode {
+		if codeHash != types.EmptyCodeHash {
 			code := rawdb.ReadCode(src, codeHash)
 			if len(code) == 0 {
 				return common.Hash{}, errors.New("failed to read contract code")
diff --git a/core/state/snapshot/generate.go b/core/state/snapshot/generate.go
index 46f41cdbe..d46705d31 100644
--- a/core/state/snapshot/generate.go
+++ b/core/state/snapshot/generate.go
@@ -27,7 +27,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/hexutil"
 	"github.com/ethereum/go-ethereum/core/rawdb"
-	"github.com/ethereum/go-ethereum/crypto"
+	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/rlp"
@@ -35,12 +35,6 @@ import (
 )
 
 var (
-	// emptyRoot is the known root hash of an empty trie.
-	emptyRoot = common.HexToHash("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")
-
-	// emptyCode is the known hash of the empty EVM bytecode.
-	emptyCode = crypto.Keccak256Hash(nil)
-
 	// accountCheckRange is the upper limit of the number of accounts involved in
 	// each range check. This is a value estimated based on experience. If this
 	// range is too large, the failure rate of range proof will increase. Otherwise,
@@ -591,10 +585,10 @@ func generateAccounts(ctx *generatorContext, dl *diskLayer, accMarker []byte) er
 		if accMarker == nil || !bytes.Equal(account[:], accMarker) {
 			dataLen := len(val) // Approximate size, saves us a round of RLP-encoding
 			if !write {
-				if bytes.Equal(acc.CodeHash, emptyCode[:]) {
+				if bytes.Equal(acc.CodeHash, types.EmptyCodeHash[:]) {
 					dataLen -= 32
 				}
-				if acc.Root == emptyRoot {
+				if acc.Root == types.EmptyRootHash {
 					dataLen -= 32
 				}
 				snapRecoveredAccountMeter.Mark(1)
@@ -621,7 +615,7 @@ func generateAccounts(ctx *generatorContext, dl *diskLayer, accMarker []byte) er
 
 		// If the iterated account is the contract, create a further loop to
 		// verify or regenerate the contract storage.
-		if acc.Root == emptyRoot {
+		if acc.Root == types.EmptyRootHash {
 			ctx.removeStorageAt(account)
 		} else {
 			var storeMarker []byte
diff --git a/core/state/snapshot/generate_test.go b/core/state/snapshot/generate_test.go
index 1bc3421e9..1bac4fd56 100644
--- a/core/state/snapshot/generate_test.go
+++ b/core/state/snapshot/generate_test.go
@@ -25,6 +25,7 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/rawdb"
+	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/rlp"
@@ -49,9 +50,9 @@ func TestGeneration(t *testing.T) {
 	var helper = newHelper()
 	stRoot := helper.makeStorageTrie(common.Hash{}, common.Hash{}, []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"}, false)
 
-	helper.addTrieAccount("acc-1", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
-	helper.addTrieAccount("acc-2", &Account{Balance: big.NewInt(2), Root: emptyRoot.Bytes(), CodeHash: emptyCode.Bytes()})
-	helper.addTrieAccount("acc-3", &Account{Balance: big.NewInt(3), Root: stRoot, CodeHash: emptyCode.Bytes()})
+	helper.addTrieAccount("acc-1", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()})
+	helper.addTrieAccount("acc-2", &Account{Balance: big.NewInt(2), Root: types.EmptyRootHash.Bytes(), CodeHash: types.EmptyCodeHash.Bytes()})
+	helper.addTrieAccount("acc-3", &Account{Balance: big.NewInt(3), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()})
 
 	helper.makeStorageTrie(common.Hash{}, hashData([]byte("acc-1")), []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"}, true)
 	helper.makeStorageTrie(common.Hash{}, hashData([]byte("acc-3")), []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"}, true)
@@ -83,16 +84,16 @@ func TestGenerateExistentState(t *testing.T) {
 	var helper = newHelper()
 
 	stRoot := helper.makeStorageTrie(common.Hash{}, hashData([]byte("acc-1")), []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"}, true)
-	helper.addTrieAccount("acc-1", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
-	helper.addSnapAccount("acc-1", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
+	helper.addTrieAccount("acc-1", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()})
+	helper.addSnapAccount("acc-1", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()})
 	helper.addSnapStorage("acc-1", []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"})
 
-	helper.addTrieAccount("acc-2", &Account{Balance: big.NewInt(2), Root: emptyRoot.Bytes(), CodeHash: emptyCode.Bytes()})
-	helper.addSnapAccount("acc-2", &Account{Balance: big.NewInt(2), Root: emptyRoot.Bytes(), CodeHash: emptyCode.Bytes()})
+	helper.addTrieAccount("acc-2", &Account{Balance: big.NewInt(2), Root: types.EmptyRootHash.Bytes(), CodeHash: types.EmptyCodeHash.Bytes()})
+	helper.addSnapAccount("acc-2", &Account{Balance: big.NewInt(2), Root: types.EmptyRootHash.Bytes(), CodeHash: types.EmptyCodeHash.Bytes()})
 
 	stRoot = helper.makeStorageTrie(common.Hash{}, hashData([]byte("acc-3")), []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"}, true)
-	helper.addTrieAccount("acc-3", &Account{Balance: big.NewInt(3), Root: stRoot, CodeHash: emptyCode.Bytes()})
-	helper.addSnapAccount("acc-3", &Account{Balance: big.NewInt(3), Root: stRoot, CodeHash: emptyCode.Bytes()})
+	helper.addTrieAccount("acc-3", &Account{Balance: big.NewInt(3), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()})
+	helper.addSnapAccount("acc-3", &Account{Balance: big.NewInt(3), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()})
 	helper.addSnapStorage("acc-3", []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"})
 
 	root, snap := helper.CommitAndGenerate()
@@ -235,28 +236,28 @@ func TestGenerateExistentStateWithWrongStorage(t *testing.T) {
 	helper := newHelper()
 
 	// Account one, empty root but non-empty database
-	helper.addAccount("acc-1", &Account{Balance: big.NewInt(1), Root: emptyRoot.Bytes(), CodeHash: emptyCode.Bytes()})
+	helper.addAccount("acc-1", &Account{Balance: big.NewInt(1), Root: types.EmptyRootHash.Bytes(), CodeHash: types.EmptyCodeHash.Bytes()})
 	helper.addSnapStorage("acc-1", []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"})
 
 	// Account two, non empty root but empty database
 	stRoot := helper.makeStorageTrie(common.Hash{}, hashData([]byte("acc-2")), []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"}, true)
-	helper.addAccount("acc-2", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
+	helper.addAccount("acc-2", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()})
 
 	// Miss slots
 	{
 		// Account three, non empty root but misses slots in the beginning
 		helper.makeStorageTrie(common.Hash{}, hashData([]byte("acc-3")), []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"}, true)
-		helper.addAccount("acc-3", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
+		helper.addAccount("acc-3", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()})
 		helper.addSnapStorage("acc-3", []string{"key-2", "key-3"}, []string{"val-2", "val-3"})
 
 		// Account four, non empty root but misses slots in the middle
 		helper.makeStorageTrie(common.Hash{}, hashData([]byte("acc-4")), []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"}, true)
-		helper.addAccount("acc-4", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
+		helper.addAccount("acc-4", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()})
 		helper.addSnapStorage("acc-4", []string{"key-1", "key-3"}, []string{"val-1", "val-3"})
 
 		// Account five, non empty root but misses slots in the end
 		helper.makeStorageTrie(common.Hash{}, hashData([]byte("acc-5")), []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"}, true)
-		helper.addAccount("acc-5", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
+		helper.addAccount("acc-5", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()})
 		helper.addSnapStorage("acc-5", []string{"key-1", "key-2"}, []string{"val-1", "val-2"})
 	}
 
@@ -264,22 +265,22 @@ func TestGenerateExistentStateWithWrongStorage(t *testing.T) {
 	{
 		// Account six, non empty root but wrong slots in the beginning
 		helper.makeStorageTrie(common.Hash{}, hashData([]byte("acc-6")), []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"}, true)
-		helper.addAccount("acc-6", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
+		helper.addAccount("acc-6", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()})
 		helper.addSnapStorage("acc-6", []string{"key-1", "key-2", "key-3"}, []string{"badval-1", "val-2", "val-3"})
 
 		// Account seven, non empty root but wrong slots in the middle
 		helper.makeStorageTrie(common.Hash{}, hashData([]byte("acc-7")), []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"}, true)
-		helper.addAccount("acc-7", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
+		helper.addAccount("acc-7", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()})
 		helper.addSnapStorage("acc-7", []string{"key-1", "key-2", "key-3"}, []string{"val-1", "badval-2", "val-3"})
 
 		// Account eight, non empty root but wrong slots in the end
 		helper.makeStorageTrie(common.Hash{}, hashData([]byte("acc-8")), []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"}, true)
-		helper.addAccount("acc-8", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
+		helper.addAccount("acc-8", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()})
 		helper.addSnapStorage("acc-8", []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "badval-3"})
 
 		// Account 9, non empty root but rotated slots
 		helper.makeStorageTrie(common.Hash{}, hashData([]byte("acc-9")), []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"}, true)
-		helper.addAccount("acc-9", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
+		helper.addAccount("acc-9", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()})
 		helper.addSnapStorage("acc-9", []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-3", "val-2"})
 	}
 
@@ -287,17 +288,17 @@ func TestGenerateExistentStateWithWrongStorage(t *testing.T) {
 	{
 		// Account 10, non empty root but extra slots in the beginning
 		helper.makeStorageTrie(common.Hash{}, hashData([]byte("acc-10")), []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"}, true)
-		helper.addAccount("acc-10", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
+		helper.addAccount("acc-10", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()})
 		helper.addSnapStorage("acc-10", []string{"key-0", "key-1", "key-2", "key-3"}, []string{"val-0", "val-1", "val-2", "val-3"})
 
 		// Account 11, non empty root but extra slots in the middle
 		helper.makeStorageTrie(common.Hash{}, hashData([]byte("acc-11")), []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"}, true)
-		helper.addAccount("acc-11", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
+		helper.addAccount("acc-11", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()})
 		helper.addSnapStorage("acc-11", []string{"key-1", "key-2", "key-2-1", "key-3"}, []string{"val-1", "val-2", "val-2-1", "val-3"})
 
 		// Account 12, non empty root but extra slots in the end
 		helper.makeStorageTrie(common.Hash{}, hashData([]byte("acc-12")), []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"}, true)
-		helper.addAccount("acc-12", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
+		helper.addAccount("acc-12", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()})
 		helper.addSnapStorage("acc-12", []string{"key-1", "key-2", "key-3", "key-4"}, []string{"val-1", "val-2", "val-3", "val-4"})
 	}
 
@@ -337,25 +338,25 @@ func TestGenerateExistentStateWithWrongAccounts(t *testing.T) {
 
 	// Missing accounts, only in the trie
 	{
-		helper.addTrieAccount("acc-1", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()}) // Beginning
-		helper.addTrieAccount("acc-4", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()}) // Middle
-		helper.addTrieAccount("acc-6", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()}) // End
+		helper.addTrieAccount("acc-1", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()}) // Beginning
+		helper.addTrieAccount("acc-4", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()}) // Middle
+		helper.addTrieAccount("acc-6", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()}) // End
 	}
 
 	// Wrong accounts
 	{
-		helper.addTrieAccount("acc-2", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
+		helper.addTrieAccount("acc-2", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()})
 		helper.addSnapAccount("acc-2", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: common.Hex2Bytes("0x1234")})
 
-		helper.addTrieAccount("acc-3", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
-		helper.addSnapAccount("acc-3", &Account{Balance: big.NewInt(1), Root: emptyRoot.Bytes(), CodeHash: emptyCode.Bytes()})
+		helper.addTrieAccount("acc-3", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()})
+		helper.addSnapAccount("acc-3", &Account{Balance: big.NewInt(1), Root: types.EmptyRootHash.Bytes(), CodeHash: types.EmptyCodeHash.Bytes()})
 	}
 
 	// Extra accounts, only in the snap
 	{
-		helper.addSnapAccount("acc-0", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyRoot.Bytes()})                     // before the beginning
-		helper.addSnapAccount("acc-5", &Account{Balance: big.NewInt(1), Root: emptyRoot.Bytes(), CodeHash: common.Hex2Bytes("0x1234")}) // Middle
-		helper.addSnapAccount("acc-7", &Account{Balance: big.NewInt(1), Root: emptyRoot.Bytes(), CodeHash: emptyRoot.Bytes()})          // after the end
+		helper.addSnapAccount("acc-0", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()})                      // before the beginning
+		helper.addSnapAccount("acc-5", &Account{Balance: big.NewInt(1), Root: types.EmptyRootHash.Bytes(), CodeHash: common.Hex2Bytes("0x1234")})  // Middle
+		helper.addSnapAccount("acc-7", &Account{Balance: big.NewInt(1), Root: types.EmptyRootHash.Bytes(), CodeHash: types.EmptyCodeHash.Bytes()}) // after the end
 	}
 
 	root, snap := helper.CommitAndGenerate()
@@ -384,9 +385,9 @@ func TestGenerateCorruptAccountTrie(t *testing.T) {
 	// without any storage slots to keep the test smaller.
 	helper := newHelper()
 
-	helper.addTrieAccount("acc-1", &Account{Balance: big.NewInt(1), Root: emptyRoot.Bytes(), CodeHash: emptyCode.Bytes()}) // 0xc7a30f39aff471c95d8a837497ad0e49b65be475cc0953540f80cfcdbdcd9074
-	helper.addTrieAccount("acc-2", &Account{Balance: big.NewInt(2), Root: emptyRoot.Bytes(), CodeHash: emptyCode.Bytes()}) // 0x65145f923027566669a1ae5ccac66f945b55ff6eaeb17d2ea8e048b7d381f2d7
-	helper.addTrieAccount("acc-3", &Account{Balance: big.NewInt(3), Root: emptyRoot.Bytes(), CodeHash: emptyCode.Bytes()}) // 0x19ead688e907b0fab07176120dceec244a72aff2f0aa51e8b827584e378772f4
+	helper.addTrieAccount("acc-1", &Account{Balance: big.NewInt(1), Root: types.EmptyRootHash.Bytes(), CodeHash: types.EmptyCodeHash.Bytes()}) // 0xc7a30f39aff471c95d8a837497ad0e49b65be475cc0953540f80cfcdbdcd9074
+	helper.addTrieAccount("acc-2", &Account{Balance: big.NewInt(2), Root: types.EmptyRootHash.Bytes(), CodeHash: types.EmptyCodeHash.Bytes()}) // 0x65145f923027566669a1ae5ccac66f945b55ff6eaeb17d2ea8e048b7d381f2d7
+	helper.addTrieAccount("acc-3", &Account{Balance: big.NewInt(3), Root: types.EmptyRootHash.Bytes(), CodeHash: types.EmptyCodeHash.Bytes()}) // 0x19ead688e907b0fab07176120dceec244a72aff2f0aa51e8b827584e378772f4
 
 	root := helper.Commit() // Root: 0xa04693ea110a31037fb5ee814308a6f1d76bdab0b11676bdf4541d2de55ba978
 
@@ -419,10 +420,10 @@ func TestGenerateMissingStorageTrie(t *testing.T) {
 	helper := newHelper()
 
 	stRoot := helper.makeStorageTrie(common.Hash{}, hashData([]byte("acc-1")), []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"}, true) // 0xddefcd9376dd029653ef384bd2f0a126bb755fe84fdcc9e7cf421ba454f2bc67
-	helper.addTrieAccount("acc-1", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})                                                // 0x9250573b9c18c664139f3b6a7a8081b7d8f8916a8fcc5d94feec6c29f5fd4e9e
-	helper.addTrieAccount("acc-2", &Account{Balance: big.NewInt(2), Root: emptyRoot.Bytes(), CodeHash: emptyCode.Bytes()})                                     // 0x65145f923027566669a1ae5ccac66f945b55ff6eaeb17d2ea8e048b7d381f2d7
+	helper.addTrieAccount("acc-1", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()})                                      // 0x9250573b9c18c664139f3b6a7a8081b7d8f8916a8fcc5d94feec6c29f5fd4e9e
+	helper.addTrieAccount("acc-2", &Account{Balance: big.NewInt(2), Root: types.EmptyRootHash.Bytes(), CodeHash: types.EmptyCodeHash.Bytes()})                 // 0x65145f923027566669a1ae5ccac66f945b55ff6eaeb17d2ea8e048b7d381f2d7
 	stRoot = helper.makeStorageTrie(common.Hash{}, hashData([]byte("acc-3")), []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"}, true)
-	helper.addTrieAccount("acc-3", &Account{Balance: big.NewInt(3), Root: stRoot, CodeHash: emptyCode.Bytes()}) // 0x50815097425d000edfc8b3a4a13e175fc2bdcfee8bdfbf2d1ff61041d3c235b2
+	helper.addTrieAccount("acc-3", &Account{Balance: big.NewInt(3), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()}) // 0x50815097425d000edfc8b3a4a13e175fc2bdcfee8bdfbf2d1ff61041d3c235b2
 
 	root := helper.Commit()
 
@@ -453,10 +454,10 @@ func TestGenerateCorruptStorageTrie(t *testing.T) {
 	helper := newHelper()
 
 	stRoot := helper.makeStorageTrie(common.Hash{}, hashData([]byte("acc-1")), []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"}, true) // 0xddefcd9376dd029653ef384bd2f0a126bb755fe84fdcc9e7cf421ba454f2bc67
-	helper.addTrieAccount("acc-1", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})                                                // 0x9250573b9c18c664139f3b6a7a8081b7d8f8916a8fcc5d94feec6c29f5fd4e9e
-	helper.addTrieAccount("acc-2", &Account{Balance: big.NewInt(2), Root: emptyRoot.Bytes(), CodeHash: emptyCode.Bytes()})                                     // 0x65145f923027566669a1ae5ccac66f945b55ff6eaeb17d2ea8e048b7d381f2d7
+	helper.addTrieAccount("acc-1", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()})                                      // 0x9250573b9c18c664139f3b6a7a8081b7d8f8916a8fcc5d94feec6c29f5fd4e9e
+	helper.addTrieAccount("acc-2", &Account{Balance: big.NewInt(2), Root: types.EmptyRootHash.Bytes(), CodeHash: types.EmptyCodeHash.Bytes()})                 // 0x65145f923027566669a1ae5ccac66f945b55ff6eaeb17d2ea8e048b7d381f2d7
 	stRoot = helper.makeStorageTrie(common.Hash{}, hashData([]byte("acc-3")), []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"}, true)
-	helper.addTrieAccount("acc-3", &Account{Balance: big.NewInt(3), Root: stRoot, CodeHash: emptyCode.Bytes()}) // 0x50815097425d000edfc8b3a4a13e175fc2bdcfee8bdfbf2d1ff61041d3c235b2
+	helper.addTrieAccount("acc-3", &Account{Balance: big.NewInt(3), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()}) // 0x50815097425d000edfc8b3a4a13e175fc2bdcfee8bdfbf2d1ff61041d3c235b2
 
 	root := helper.Commit()
 
@@ -488,7 +489,7 @@ func TestGenerateWithExtraAccounts(t *testing.T) {
 			[]string{"val-1", "val-2", "val-3", "val-4", "val-5"},
 			true,
 		)
-		acc := &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()}
+		acc := &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()}
 		val, _ := rlp.EncodeToBytes(acc)
 		helper.accTrie.Update([]byte("acc-1"), val) // 0x9250573b9c18c664139f3b6a7a8081b7d8f8916a8fcc5d94feec6c29f5fd4e9e
 
@@ -508,7 +509,7 @@ func TestGenerateWithExtraAccounts(t *testing.T) {
 			[]string{"val-1", "val-2", "val-3", "val-4", "val-5"},
 			true,
 		)
-		acc := &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()}
+		acc := &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()}
 		val, _ := rlp.EncodeToBytes(acc)
 		key := hashData([]byte("acc-2"))
 		rawdb.WriteAccountSnapshot(helper.diskdb, key, val)
@@ -559,7 +560,7 @@ func TestGenerateWithManyExtraAccounts(t *testing.T) {
 			[]string{"val-1", "val-2", "val-3"},
 			true,
 		)
-		acc := &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()}
+		acc := &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()}
 		val, _ := rlp.EncodeToBytes(acc)
 		helper.accTrie.Update([]byte("acc-1"), val) // 0x9250573b9c18c664139f3b6a7a8081b7d8f8916a8fcc5d94feec6c29f5fd4e9e
 
@@ -573,8 +574,7 @@ func TestGenerateWithManyExtraAccounts(t *testing.T) {
 	{
 		// 100 accounts exist only in snapshot
 		for i := 0; i < 1000; i++ {
-			//acc := &Account{Balance: big.NewInt(int64(i)), Root: stTrie.Hash().Bytes(), CodeHash: emptyCode.Bytes()}
-			acc := &Account{Balance: big.NewInt(int64(i)), Root: emptyRoot.Bytes(), CodeHash: emptyCode.Bytes()}
+			acc := &Account{Balance: big.NewInt(int64(i)), Root: types.EmptyRootHash.Bytes(), CodeHash: types.EmptyCodeHash.Bytes()}
 			val, _ := rlp.EncodeToBytes(acc)
 			key := hashData([]byte(fmt.Sprintf("acc-%d", i)))
 			rawdb.WriteAccountSnapshot(helper.diskdb, key, val)
@@ -611,7 +611,7 @@ func TestGenerateWithExtraBeforeAndAfter(t *testing.T) {
 	}
 	helper := newHelper()
 	{
-		acc := &Account{Balance: big.NewInt(1), Root: emptyRoot.Bytes(), CodeHash: emptyCode.Bytes()}
+		acc := &Account{Balance: big.NewInt(1), Root: types.EmptyRootHash.Bytes(), CodeHash: types.EmptyCodeHash.Bytes()}
 		val, _ := rlp.EncodeToBytes(acc)
 		helper.accTrie.Update(common.HexToHash("0x03").Bytes(), val)
 		helper.accTrie.Update(common.HexToHash("0x07").Bytes(), val)
@@ -648,7 +648,7 @@ func TestGenerateWithMalformedSnapdata(t *testing.T) {
 	}
 	helper := newHelper()
 	{
-		acc := &Account{Balance: big.NewInt(1), Root: emptyRoot.Bytes(), CodeHash: emptyCode.Bytes()}
+		acc := &Account{Balance: big.NewInt(1), Root: types.EmptyRootHash.Bytes(), CodeHash: types.EmptyCodeHash.Bytes()}
 		val, _ := rlp.EncodeToBytes(acc)
 		helper.accTrie.Update(common.HexToHash("0x03").Bytes(), val)
 
@@ -687,7 +687,7 @@ func TestGenerateFromEmptySnap(t *testing.T) {
 	for i := 0; i < 400; i++ {
 		stRoot := helper.makeStorageTrie(common.Hash{}, hashData([]byte(fmt.Sprintf("acc-%d", i))), []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"}, true)
 		helper.addTrieAccount(fmt.Sprintf("acc-%d", i),
-			&Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
+			&Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()})
 	}
 	root, snap := helper.CommitAndGenerate()
 	t.Logf("Root: %#x\n", root) // Root: 0x6f7af6d2e1a1bf2b84a3beb3f8b64388465fbc1e274ca5d5d3fc787ca78f59e4
@@ -724,7 +724,7 @@ func TestGenerateWithIncompleteStorage(t *testing.T) {
 	for i := 0; i < 8; i++ {
 		accKey := fmt.Sprintf("acc-%d", i)
 		stRoot := helper.makeStorageTrie(common.Hash{}, hashData([]byte(accKey)), stKeys, stVals, true)
-		helper.addAccount(accKey, &Account{Balance: big.NewInt(int64(i)), Root: stRoot, CodeHash: emptyCode.Bytes()})
+		helper.addAccount(accKey, &Account{Balance: big.NewInt(int64(i)), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()})
 		var moddedKeys []string
 		var moddedVals []string
 		for ii := 0; ii < 8; ii++ {
@@ -816,11 +816,11 @@ func TestGenerateCompleteSnapshotWithDanglingStorage(t *testing.T) {
 	var helper = newHelper()
 
 	stRoot := helper.makeStorageTrie(common.Hash{}, hashData([]byte("acc-1")), []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"}, true)
-	helper.addAccount("acc-1", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
-	helper.addAccount("acc-2", &Account{Balance: big.NewInt(1), Root: emptyRoot.Bytes(), CodeHash: emptyCode.Bytes()})
+	helper.addAccount("acc-1", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()})
+	helper.addAccount("acc-2", &Account{Balance: big.NewInt(1), Root: types.EmptyRootHash.Bytes(), CodeHash: types.EmptyCodeHash.Bytes()})
 
 	helper.makeStorageTrie(common.Hash{}, hashData([]byte("acc-3")), []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"}, true)
-	helper.addAccount("acc-3", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
+	helper.addAccount("acc-3", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()})
 
 	helper.addSnapStorage("acc-1", []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"})
 	helper.addSnapStorage("acc-3", []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"})
@@ -851,11 +851,11 @@ func TestGenerateBrokenSnapshotWithDanglingStorage(t *testing.T) {
 	var helper = newHelper()
 
 	stRoot := helper.makeStorageTrie(common.Hash{}, hashData([]byte("acc-1")), []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"}, true)
-	helper.addTrieAccount("acc-1", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
-	helper.addTrieAccount("acc-2", &Account{Balance: big.NewInt(2), Root: emptyRoot.Bytes(), CodeHash: emptyCode.Bytes()})
+	helper.addTrieAccount("acc-1", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()})
+	helper.addTrieAccount("acc-2", &Account{Balance: big.NewInt(2), Root: types.EmptyRootHash.Bytes(), CodeHash: types.EmptyCodeHash.Bytes()})
 
 	helper.makeStorageTrie(common.Hash{}, hashData([]byte("acc-3")), []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"}, true)
-	helper.addTrieAccount("acc-3", &Account{Balance: big.NewInt(3), Root: stRoot, CodeHash: emptyCode.Bytes()})
+	helper.addTrieAccount("acc-3", &Account{Balance: big.NewInt(3), Root: stRoot, CodeHash: types.EmptyCodeHash.Bytes()})
 
 	populateDangling(helper.diskdb)
 
diff --git a/core/state/snapshot/snapshot_test.go b/core/state/snapshot/snapshot_test.go
index 82833873c..6893f6001 100644
--- a/core/state/snapshot/snapshot_test.go
+++ b/core/state/snapshot/snapshot_test.go
@@ -28,6 +28,7 @@ import (
 	"github.com/VictoriaMetrics/fastcache"
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/rawdb"
+	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/rlp"
 )
 
@@ -47,7 +48,7 @@ func randomAccount() []byte {
 		Balance:  big.NewInt(rand.Int63()),
 		Nonce:    rand.Uint64(),
 		Root:     root[:],
-		CodeHash: emptyCode[:],
+		CodeHash: types.EmptyCodeHash[:],
 	}
 	data, _ := rlp.EncodeToBytes(a)
 	return data
diff --git a/core/state/state_object.go b/core/state/state_object.go
index 1550926d3..5dfd3c1b6 100644
--- a/core/state/state_object.go
+++ b/core/state/state_object.go
@@ -31,8 +31,6 @@ import (
 	"github.com/ethereum/go-ethereum/trie"
 )
 
-var emptyCodeHash = crypto.Keccak256(nil)
-
 type Code []byte
 
 func (c Code) String() string {
@@ -95,7 +93,7 @@ type stateObject struct {
 
 // empty returns whether the account is considered empty.
 func (s *stateObject) empty() bool {
-	return s.data.Nonce == 0 && s.data.Balance.Sign() == 0 && bytes.Equal(s.data.CodeHash, emptyCodeHash)
+	return s.data.Nonce == 0 && s.data.Balance.Sign() == 0 && bytes.Equal(s.data.CodeHash, types.EmptyCodeHash.Bytes())
 }
 
 // newObject creates a state object.
@@ -104,10 +102,10 @@ func newObject(db *StateDB, address common.Address, data types.StateAccount) *st
 		data.Balance = new(big.Int)
 	}
 	if data.CodeHash == nil {
-		data.CodeHash = emptyCodeHash
+		data.CodeHash = types.EmptyCodeHash.Bytes()
 	}
 	if data.Root == (common.Hash{}) {
-		data.Root = emptyRoot
+		data.Root = types.EmptyRootHash
 	}
 	return &stateObject{
 		db:             db,
@@ -154,7 +152,7 @@ func (s *stateObject) getTrie(db Database) (Trie, error) {
 	if s.trie == nil {
 		// Try fetching from prefetcher first
 		// We don't prefetch empty tries
-		if s.data.Root != emptyRoot && s.db.prefetcher != nil {
+		if s.data.Root != types.EmptyRootHash && s.db.prefetcher != nil {
 			// When the miner is creating the pending state, there is no
 			// prefetcher
 			s.trie = s.db.prefetcher.trie(s.addrHash, s.data.Root)
@@ -270,7 +268,7 @@ func (s *stateObject) finalise(prefetch bool) {
 			slotsToPrefetch = append(slotsToPrefetch, common.CopyBytes(key[:])) // Copy needed for closure
 		}
 	}
-	if s.db.prefetcher != nil && prefetch && len(slotsToPrefetch) > 0 && s.data.Root != emptyRoot {
+	if s.db.prefetcher != nil && prefetch && len(slotsToPrefetch) > 0 && s.data.Root != types.EmptyRootHash {
 		s.db.prefetcher.prefetch(s.addrHash, s.data.Root, slotsToPrefetch)
 	}
 	if len(s.dirtyStorage) > 0 {
@@ -454,7 +452,7 @@ func (s *stateObject) Code(db Database) []byte {
 	if s.code != nil {
 		return s.code
 	}
-	if bytes.Equal(s.CodeHash(), emptyCodeHash) {
+	if bytes.Equal(s.CodeHash(), types.EmptyCodeHash.Bytes()) {
 		return nil
 	}
 	code, err := db.ContractCode(s.addrHash, common.BytesToHash(s.CodeHash()))
@@ -472,7 +470,7 @@ func (s *stateObject) CodeSize(db Database) int {
 	if s.code != nil {
 		return len(s.code)
 	}
-	if bytes.Equal(s.CodeHash(), emptyCodeHash) {
+	if bytes.Equal(s.CodeHash(), types.EmptyCodeHash.Bytes()) {
 		return 0
 	}
 	size, err := db.ContractCodeSize(s.addrHash, common.BytesToHash(s.CodeHash()))
diff --git a/core/state/statedb.go b/core/state/statedb.go
index b3cb5ee10..e522801f0 100644
--- a/core/state/statedb.go
+++ b/core/state/statedb.go
@@ -41,11 +41,6 @@ type revision struct {
 	journalIndex int
 }
 
-var (
-	// emptyRoot is the known root hash of an empty trie.
-	emptyRoot = common.HexToHash("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")
-)
-
 type proofList [][]byte
 
 func (n *proofList) Put(key []byte, value []byte) error {
@@ -589,10 +584,10 @@ func (s *StateDB) getDeletedStateObject(addr common.Address) *stateObject {
 				Root:     common.BytesToHash(acc.Root),
 			}
 			if len(data.CodeHash) == 0 {
-				data.CodeHash = emptyCodeHash
+				data.CodeHash = types.EmptyCodeHash.Bytes()
 			}
 			if data.Root == (common.Hash{}) {
-				data.Root = emptyRoot
+				data.Root = types.EmptyRootHash
 			}
 		}
 	}
@@ -1086,11 +1081,11 @@ func (s *StateDB) Commit(deleteEmptyObjects bool) (common.Hash, error) {
 		s.stateObjectsDestruct = make(map[common.Address]struct{})
 	}
 	if root == (common.Hash{}) {
-		root = emptyRoot
+		root = types.EmptyRootHash
 	}
 	origin := s.originalRoot
 	if origin == (common.Hash{}) {
-		origin = emptyRoot
+		origin = types.EmptyRootHash
 	}
 	if root != origin {
 		start := time.Now()
diff --git a/core/state/sync_test.go b/core/state/sync_test.go
index 84b7bf84e..aff91268a 100644
--- a/core/state/sync_test.go
+++ b/core/state/sync_test.go
@@ -134,8 +134,7 @@ func checkStateConsistency(db ethdb.Database, root common.Hash) error {
 // Tests that an empty state is not scheduled for syncing.
 func TestEmptyStateSync(t *testing.T) {
 	db := trie.NewDatabase(rawdb.NewMemoryDatabase())
-	empty := common.HexToHash("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")
-	sync := NewStateSync(empty, rawdb.NewMemoryDatabase(), nil, db.Scheme())
+	sync := NewStateSync(types.EmptyRootHash, rawdb.NewMemoryDatabase(), nil, db.Scheme())
 	if paths, nodes, codes := sync.Missing(1); len(paths) != 0 || len(nodes) != 0 || len(codes) != 0 {
 		t.Errorf("content requested for empty state: %v, %v, %v", nodes, paths, codes)
 	}
@@ -555,7 +554,7 @@ func TestIncompleteStateSync(t *testing.T) {
 			isCode[crypto.Keccak256Hash(acc.code)] = struct{}{}
 		}
 	}
-	isCode[common.BytesToHash(emptyCodeHash)] = struct{}{}
+	isCode[types.EmptyCodeHash] = struct{}{}
 	checkTrieConsistency(db, srcRoot)
 
 	// Create a destination state and sync with the scheduler
diff --git a/core/state_processor_test.go b/core/state_processor_test.go
index 821b85e9b..59391fa86 100644
--- a/core/state_processor_test.go
+++ b/core/state_processor_test.go
@@ -404,7 +404,7 @@ func GenerateBadBlock(parent *types.Block, engine consensus.Engine, txs types.Tr
 		header.BaseFee = misc.CalcBaseFee(config, parent.Header())
 	}
 	if config.IsShanghai(header.Time) {
-		header.WithdrawalsHash = &types.EmptyRootHash
+		header.WithdrawalsHash = &types.EmptyWithdrawalsHash
 	}
 	var receipts []*types.Receipt
 	// The post-state result doesn't need to be correct (this is a bad block), but we do need something there
diff --git a/core/types/block.go b/core/types/block.go
index ac8c031ac..82ad3ce99 100644
--- a/core/types/block.go
+++ b/core/types/block.go
@@ -31,11 +31,6 @@ import (
 	"github.com/ethereum/go-ethereum/rlp"
 )
 
-var (
-	EmptyRootHash  = common.HexToHash("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")
-	EmptyUncleHash = rlpHash([]*Header(nil))
-)
-
 // A BlockNonce is a 64-bit hash which proves (combined with the
 // mix-hash) that a sufficient amount of computation has been carried
 // out on a block.
@@ -155,14 +150,14 @@ func (h *Header) SanityCheck() error {
 // that is: no transactions, no uncles and no withdrawals.
 func (h *Header) EmptyBody() bool {
 	if h.WithdrawalsHash == nil {
-		return h.TxHash == EmptyRootHash && h.UncleHash == EmptyUncleHash
+		return h.TxHash == EmptyTxsHash && h.UncleHash == EmptyUncleHash
 	}
-	return h.TxHash == EmptyRootHash && h.UncleHash == EmptyUncleHash && *h.WithdrawalsHash == EmptyRootHash
+	return h.TxHash == EmptyTxsHash && h.UncleHash == EmptyUncleHash && *h.WithdrawalsHash == EmptyWithdrawalsHash
 }
 
 // EmptyReceipts returns true if there are no receipts for this header/block.
 func (h *Header) EmptyReceipts() bool {
-	return h.ReceiptHash == EmptyRootHash
+	return h.ReceiptHash == EmptyReceiptsHash
 }
 
 // Body is a simple (mutable, non-safe) data container for storing and moving
@@ -210,7 +205,7 @@ func NewBlock(header *Header, txs []*Transaction, uncles []*Header, receipts []*
 
 	// TODO: panic if len(txs) != len(receipts)
 	if len(txs) == 0 {
-		b.header.TxHash = EmptyRootHash
+		b.header.TxHash = EmptyTxsHash
 	} else {
 		b.header.TxHash = DeriveSha(Transactions(txs), hasher)
 		b.transactions = make(Transactions, len(txs))
@@ -218,7 +213,7 @@ func NewBlock(header *Header, txs []*Transaction, uncles []*Header, receipts []*
 	}
 
 	if len(receipts) == 0 {
-		b.header.ReceiptHash = EmptyRootHash
+		b.header.ReceiptHash = EmptyReceiptsHash
 	} else {
 		b.header.ReceiptHash = DeriveSha(Receipts(receipts), hasher)
 		b.header.Bloom = CreateBloom(receipts)
@@ -250,7 +245,7 @@ func NewBlockWithWithdrawals(header *Header, txs []*Transaction, uncles []*Heade
 	if withdrawals == nil {
 		b.header.WithdrawalsHash = nil
 	} else if len(withdrawals) == 0 {
-		b.header.WithdrawalsHash = &EmptyRootHash
+		b.header.WithdrawalsHash = &EmptyWithdrawalsHash
 	} else {
 		h := DeriveSha(Withdrawals(withdrawals), hasher)
 		b.header.WithdrawalsHash = &h
diff --git a/core/types/hashes.go b/core/types/hashes.go
new file mode 100644
index 000000000..3bad430be
--- /dev/null
+++ b/core/types/hashes.go
@@ -0,0 +1,42 @@
+// Copyright 2023 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package types
+
+import (
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/crypto"
+)
+
+var (
+	// EmptyRootHash is the known root hash of an empty trie.
+	EmptyRootHash = common.HexToHash("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")
+
+	// EmptyUncleHash is the known hash of the empty uncle set.
+	EmptyUncleHash = rlpHash([]*Header(nil)) // 1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347
+
+	// EmptyCodeHash is the known hash of the empty EVM bytecode.
+	EmptyCodeHash = crypto.Keccak256Hash(nil) // c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470
+
+	// EmptyTxsHash is the known hash of the empty transaction set.
+	EmptyTxsHash = common.HexToHash("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")
+
+	// EmptyReceiptsHash is the known hash of the empty receipt set.
+	EmptyReceiptsHash = common.HexToHash("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")
+
+	// EmptyWithdrawalsHash is the known hash of the empty withdrawal set.
+	EmptyWithdrawalsHash = common.HexToHash("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")
+)
diff --git a/eth/catalyst/api.go b/eth/catalyst/api.go
index 00c477218..95eed408f 100644
--- a/eth/catalyst/api.go
+++ b/eth/catalyst/api.go
@@ -448,7 +448,7 @@ func (api *ConsensusAPI) newPayload(params engine.ExecutableData) (engine.Payloa
 	block, err := engine.ExecutableDataToBlock(params)
 	if err != nil {
 		log.Debug("Invalid NewPayload params", "params", params, "error", err)
-		return engine.PayloadStatusV1{Status: engine.INVALIDBLOCKHASH}, nil
+		return engine.PayloadStatusV1{Status: engine.INVALID}, nil
 	}
 	// Stash away the last update to warn the user if the beacon client goes offline
 	api.lastNewPayloadLock.Lock()
@@ -785,9 +785,12 @@ func (api *ConsensusAPI) GetPayloadBodiesByHashV1(hashes []common.Hash) []*engin
 // GetPayloadBodiesByRangeV1 implements engine_getPayloadBodiesByRangeV1 which allows for retrieval of a range
 // of block bodies by the engine api.
 func (api *ConsensusAPI) GetPayloadBodiesByRangeV1(start, count hexutil.Uint64) ([]*engine.ExecutionPayloadBodyV1, error) {
-	if start == 0 || count == 0 || count > 1024 {
+	if start == 0 || count == 0 {
 		return nil, engine.InvalidParams.With(fmt.Errorf("invalid start or count, start: %v count: %v", start, count))
 	}
+	if count > 1024 {
+		return nil, engine.TooLargeRequest.With(fmt.Errorf("requested count too large: %v", count))
+	}
 	// limit count up until current
 	current := api.eth.BlockChain().CurrentBlock().NumberU64()
 	last := uint64(start) + uint64(count) - 1
diff --git a/eth/catalyst/api_test.go b/eth/catalyst/api_test.go
index f7881415a..4dc0c0ea7 100644
--- a/eth/catalyst/api_test.go
+++ b/eth/catalyst/api_test.go
@@ -864,8 +864,8 @@ func TestInvalidBloom(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	if status.Status != engine.INVALIDBLOCKHASH {
-		t.Errorf("invalid status: expected VALID got: %v", status.Status)
+	if status.Status != engine.INVALID {
+		t.Errorf("invalid status: expected INVALID got: %v", status.Status)
 	}
 }
 
@@ -1383,37 +1383,43 @@ func TestGetBlockBodiesByRangeInvalidParams(t *testing.T) {
 	node, eth, _ := setupBodies(t)
 	api := NewConsensusAPI(eth)
 	defer node.Close()
-
 	tests := []struct {
 		start hexutil.Uint64
 		count hexutil.Uint64
+		want  *engine.EngineAPIError
 	}{
 		// Genesis
 		{
 			start: 0,
 			count: 1,
+			want:  engine.InvalidParams,
 		},
 		// No block requested
 		{
 			start: 1,
 			count: 0,
+			want:  engine.InvalidParams,
 		},
 		// Genesis & no block
 		{
 			start: 0,
 			count: 0,
+			want:  engine.InvalidParams,
 		},
 		// More than 1024 blocks
 		{
 			start: 1,
 			count: 1025,
+			want:  engine.TooLargeRequest,
 		},
 	}
-
-	for _, test := range tests {
-		result, err := api.GetPayloadBodiesByRangeV1(test.start, test.count)
+	for i, tc := range tests {
+		result, err := api.GetPayloadBodiesByRangeV1(tc.start, tc.count)
 		if err == nil {
-			t.Fatalf("expected error, got %v", result)
+			t.Fatalf("test %d: expected error, got %v", i, result)
+		}
+		if have, want := err.Error(), tc.want.Error(); have != want {
+			t.Fatalf("test %d: have %s, want %s", i, have, want)
 		}
 	}
 }
diff --git a/eth/downloader/downloader.go b/eth/downloader/downloader.go
index f7790b2d8..bb74efe75 100644
--- a/eth/downloader/downloader.go
+++ b/eth/downloader/downloader.go
@@ -154,6 +154,11 @@ type Downloader struct {
 	bodyFetchHook    func([]*types.Header) // Method to call upon starting a block body fetch
 	receiptFetchHook func([]*types.Header) // Method to call upon starting a receipt fetch
 	chainInsertHook  func([]*fetchResult)  // Method to call upon inserting a chain of blocks (possibly in multiple invocations)
+
+	// Progress reporting metrics
+	syncStartBlock uint64    // Head snap block when Geth was started
+	syncStartTime  time.Time // Time instance when chain sync started
+	syncLogTime    time.Time // Time instance when status was last reported
 }
 
 // LightChain encapsulates functions required to synchronise a light chain.
@@ -231,7 +236,9 @@ func New(checkpoint uint64, stateDb ethdb.Database, mux *event.TypeMux, chain Bl
 		quitCh:         make(chan struct{}),
 		SnapSyncer:     snap.NewSyncer(stateDb, chain.TrieDB().Scheme()),
 		stateSyncStart: make(chan *stateSync),
+		syncStartBlock: chain.CurrentFastBlock().NumberU64(),
 	}
+	// Create the post-merge skeleton syncer and start the process
 	dl.skeleton = newSkeleton(stateDb, dl.peers, dropPeer, newBeaconBackfiller(dl, success))
 
 	go dl.stateFetcher()
@@ -1614,6 +1621,7 @@ func (d *Downloader) processSnapSyncContent() error {
 		if len(results) == 0 {
 			// If pivot sync is done, stop
 			if oldPivot == nil {
+				d.reportSnapSyncProgress(true)
 				return sync.Cancel()
 			}
 			// If sync failed, stop
@@ -1627,6 +1635,8 @@ func (d *Downloader) processSnapSyncContent() error {
 		if d.chainInsertHook != nil {
 			d.chainInsertHook(results)
 		}
+		d.reportSnapSyncProgress(false)
+
 		// If we haven't downloaded the pivot block yet, check pivot staleness
 		// notifications from the header downloader
 		d.pivotLock.RLock()
@@ -1739,7 +1749,7 @@ func (d *Downloader) commitSnapSyncData(results []*fetchResult, stateSync *state
 		}
 	default:
 	}
-	// Retrieve the a batch of results to import
+	// Retrieve the batch of results to import
 	first, last := results[0].Header, results[len(results)-1].Header
 	log.Debug("Inserting snap-sync blocks", "items", len(results),
 		"firstnum", first.Number, "firsthash", first.Hash(),
@@ -1820,3 +1830,56 @@ func (d *Downloader) readHeaderRange(last *types.Header, count int) []*types.Hea
 	}
 	return headers
 }
+
+// reportSnapSyncProgress calculates various status reports and provides it to the user.
+func (d *Downloader) reportSnapSyncProgress(force bool) {
+	// Initialize the sync start time if it's the first time we're reporting
+	if d.syncStartTime.IsZero() {
+		d.syncStartTime = time.Now().Add(-time.Millisecond) // -1ms offset to avoid division by zero
+	}
+	// Don't report all the events, just occasionally
+	if !force && time.Since(d.syncLogTime) < 8*time.Second {
+		return
+	}
+	// Don't report anything until we have a meaningful progress
+	var (
+		headerBytes, _  = d.stateDB.AncientSize(rawdb.ChainFreezerHeaderTable)
+		bodyBytes, _    = d.stateDB.AncientSize(rawdb.ChainFreezerBodiesTable)
+		receiptBytes, _ = d.stateDB.AncientSize(rawdb.ChainFreezerReceiptTable)
+	)
+	syncedBytes := common.StorageSize(headerBytes + bodyBytes + receiptBytes)
+	if syncedBytes == 0 {
+		return
+	}
+	var (
+		header = d.blockchain.CurrentHeader()
+		block  = d.blockchain.CurrentFastBlock()
+	)
+	syncedBlocks := block.NumberU64() - d.syncStartBlock
+	if syncedBlocks == 0 {
+		return
+	}
+	// Retrieve the current chain head and calculate the ETA
+	latest, _, err := d.skeleton.Bounds()
+	if err != nil {
+		// We're going to cheat for non-merged networks, but that's fine
+		latest = d.pivotHeader
+	}
+	if latest == nil {
+		// This should really never happen, but add some defensive code for now.
+		// TODO(karalabe): Remove it eventually if we don't see it blow.
+		log.Error("Nil latest block in sync progress report")
+		return
+	}
+	var (
+		left = latest.Number.Uint64() - block.NumberU64()
+		eta  = time.Since(d.syncStartTime) / time.Duration(syncedBlocks) * time.Duration(left)
+
+		progress = fmt.Sprintf("%.2f%%", float64(block.NumberU64())*100/float64(latest.Number.Uint64()))
+		headers  = fmt.Sprintf("%v@%v", log.FormatLogfmtUint64(header.Number.Uint64()), common.StorageSize(headerBytes).TerminalString())
+		bodies   = fmt.Sprintf("%v@%v", log.FormatLogfmtUint64(block.NumberU64()), common.StorageSize(bodyBytes).TerminalString())
+		receipts = fmt.Sprintf("%v@%v", log.FormatLogfmtUint64(block.NumberU64()), common.StorageSize(receiptBytes).TerminalString())
+	)
+	log.Info("Syncing: chain download in progress", "synced", progress, "chain", syncedBytes, "headers", headers, "bodies", bodies, "receipts", receipts, "eta", common.PrettyDuration(eta))
+	d.syncLogTime = time.Now()
+}
diff --git a/eth/downloader/queue.go b/eth/downloader/queue.go
index 1f676e655..5af5068c9 100644
--- a/eth/downloader/queue.go
+++ b/eth/downloader/queue.go
@@ -144,7 +144,7 @@ type queue struct {
 	active *sync.Cond
 	closed bool
 
-	lastStatLog time.Time
+	logTime time.Time // Time instance when status was last reported
 }
 
 // newQueue creates a new download queue for scheduling block retrieval.
@@ -390,11 +390,12 @@ func (q *queue) Results(block bool) []*fetchResult {
 		}
 	}
 	// Log some info at certain times
-	if time.Since(q.lastStatLog) > 60*time.Second {
-		q.lastStatLog = time.Now()
+	if time.Since(q.logTime) >= 60*time.Second {
+		q.logTime = time.Now()
+
 		info := q.Stats()
 		info = append(info, "throttle", throttleThreshold)
-		log.Info("Downloader queue stats", info...)
+		log.Debug("Downloader queue stats", info...)
 	}
 	return results
 }
diff --git a/eth/fetcher/block_fetcher.go b/eth/fetcher/block_fetcher.go
index 50081d2e5..35608031d 100644
--- a/eth/fetcher/block_fetcher.go
+++ b/eth/fetcher/block_fetcher.go
@@ -599,7 +599,7 @@ func (f *BlockFetcher) loop() {
 						announce.time = task.time
 
 						// If the block is empty (header only), short circuit into the final import queue
-						if header.TxHash == types.EmptyRootHash && header.UncleHash == types.EmptyUncleHash {
+						if header.TxHash == types.EmptyTxsHash && header.UncleHash == types.EmptyUncleHash {
 							log.Trace("Block empty, skipping body retrieval", "peer", announce.origin, "number", header.Number, "hash", header.Hash())
 
 							block := types.NewBlockWithHeader(header)
diff --git a/eth/filters/api.go b/eth/filters/api.go
index a30eb28be..f9ae70eba 100644
--- a/eth/filters/api.go
+++ b/eth/filters/api.go
@@ -39,6 +39,7 @@ type filter struct {
 	typ      Type
 	deadline *time.Timer // filter is inactive when deadline triggers
 	hashes   []common.Hash
+	fullTx   bool
 	txs      []*types.Transaction
 	crit     FilterCriteria
 	logs     []*types.Log
@@ -103,14 +104,14 @@ func (api *FilterAPI) timeoutLoop(timeout time.Duration) {
 //
 // It is part of the filter package because this filter can be used through the
 // `eth_getFilterChanges` polling method that is also used for log filters.
-func (api *FilterAPI) NewPendingTransactionFilter() rpc.ID {
+func (api *FilterAPI) NewPendingTransactionFilter(fullTx *bool) rpc.ID {
 	var (
 		pendingTxs   = make(chan []*types.Transaction)
 		pendingTxSub = api.events.SubscribePendingTxs(pendingTxs)
 	)
 
 	api.filtersMu.Lock()
-	api.filters[pendingTxSub.ID] = &filter{typ: PendingTransactionsSubscription, deadline: time.NewTimer(api.timeout), txs: make([]*types.Transaction, 0), s: pendingTxSub}
+	api.filters[pendingTxSub.ID] = &filter{typ: PendingTransactionsSubscription, fullTx: fullTx != nil && *fullTx, deadline: time.NewTimer(api.timeout), txs: make([]*types.Transaction, 0), s: pendingTxSub}
 	api.filtersMu.Unlock()
 
 	go func() {
@@ -412,6 +413,9 @@ func (api *FilterAPI) GetFilterChanges(id rpc.ID) (interface{}, error) {
 	api.filtersMu.Lock()
 	defer api.filtersMu.Unlock()
 
+	chainConfig := api.sys.backend.ChainConfig()
+	latest := api.sys.backend.CurrentHeader()
+
 	if f, found := api.filters[id]; found {
 		if !f.deadline.Stop() {
 			// timer expired but filter is not yet removed in timeout loop
@@ -426,9 +430,21 @@ func (api *FilterAPI) GetFilterChanges(id rpc.ID) (interface{}, error) {
 			f.hashes = nil
 			return returnHashes(hashes), nil
 		case PendingTransactionsSubscription:
-			txs := f.txs
-			f.txs = nil
-			return txs, nil
+			if f.fullTx {
+				txs := make([]*ethapi.RPCTransaction, 0, len(f.txs))
+				for _, tx := range f.txs {
+					txs = append(txs, ethapi.NewRPCPendingTransaction(tx, latest, chainConfig))
+				}
+				f.txs = nil
+				return txs, nil
+			} else {
+				hashes := make([]common.Hash, 0, len(f.txs))
+				for _, tx := range f.txs {
+					hashes = append(hashes, tx.Hash())
+				}
+				f.txs = nil
+				return hashes, nil
+			}
 		case LogsSubscription, MinedAndPendingLogsSubscription:
 			logs := f.logs
 			f.logs = nil
diff --git a/eth/filters/filter_system_test.go b/eth/filters/filter_system_test.go
index 974483b68..b70b0158a 100644
--- a/eth/filters/filter_system_test.go
+++ b/eth/filters/filter_system_test.go
@@ -37,6 +37,7 @@ import (
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/event"
+	"github.com/ethereum/go-ethereum/internal/ethapi"
 	"github.com/ethereum/go-ethereum/params"
 	"github.com/ethereum/go-ethereum/rpc"
 )
@@ -52,11 +53,12 @@ type testBackend struct {
 }
 
 func (b *testBackend) ChainConfig() *params.ChainConfig {
-	panic("implement me")
+	return params.TestChainConfig
 }
 
 func (b *testBackend) CurrentHeader() *types.Header {
-	panic("implement me")
+	hdr, _ := b.HeaderByNumber(context.TODO(), rpc.LatestBlockNumber)
+	return hdr
 }
 
 func (b *testBackend) ChainDb() ethdb.Database {
@@ -256,10 +258,10 @@ func TestPendingTxFilter(t *testing.T) {
 			types.NewTransaction(4, common.HexToAddress("0xb794f5ea0ba39494ce83a213fffba74279579268"), new(big.Int), 0, new(big.Int), nil),
 		}
 
-		txs []*types.Transaction
+		hashes []common.Hash
 	)
 
-	fid0 := api.NewPendingTransactionFilter()
+	fid0 := api.NewPendingTransactionFilter(nil)
 
 	time.Sleep(1 * time.Second)
 	backend.txFeed.Send(core.NewTxsEvent{Txs: transactions})
@@ -271,7 +273,64 @@ func TestPendingTxFilter(t *testing.T) {
 			t.Fatalf("Unable to retrieve logs: %v", err)
 		}
 
-		tx := results.([]*types.Transaction)
+		h := results.([]common.Hash)
+		hashes = append(hashes, h...)
+		if len(hashes) >= len(transactions) {
+			break
+		}
+		// check timeout
+		if time.Now().After(timeout) {
+			break
+		}
+
+		time.Sleep(100 * time.Millisecond)
+	}
+
+	if len(hashes) != len(transactions) {
+		t.Errorf("invalid number of transactions, want %d transactions(s), got %d", len(transactions), len(hashes))
+		return
+	}
+	for i := range hashes {
+		if hashes[i] != transactions[i].Hash() {
+			t.Errorf("hashes[%d] invalid, want %x, got %x", i, transactions[i].Hash(), hashes[i])
+		}
+	}
+}
+
+// TestPendingTxFilterFullTx tests whether pending tx filters retrieve all pending transactions that are posted to the event mux.
+func TestPendingTxFilterFullTx(t *testing.T) {
+	t.Parallel()
+
+	var (
+		db           = rawdb.NewMemoryDatabase()
+		backend, sys = newTestFilterSystem(t, db, Config{})
+		api          = NewFilterAPI(sys, false)
+
+		transactions = []*types.Transaction{
+			types.NewTransaction(0, common.HexToAddress("0xb794f5ea0ba39494ce83a213fffba74279579268"), new(big.Int), 0, new(big.Int), nil),
+			types.NewTransaction(1, common.HexToAddress("0xb794f5ea0ba39494ce83a213fffba74279579268"), new(big.Int), 0, new(big.Int), nil),
+			types.NewTransaction(2, common.HexToAddress("0xb794f5ea0ba39494ce83a213fffba74279579268"), new(big.Int), 0, new(big.Int), nil),
+			types.NewTransaction(3, common.HexToAddress("0xb794f5ea0ba39494ce83a213fffba74279579268"), new(big.Int), 0, new(big.Int), nil),
+			types.NewTransaction(4, common.HexToAddress("0xb794f5ea0ba39494ce83a213fffba74279579268"), new(big.Int), 0, new(big.Int), nil),
+		}
+
+		txs []*ethapi.RPCTransaction
+	)
+
+	fullTx := true
+	fid0 := api.NewPendingTransactionFilter(&fullTx)
+
+	time.Sleep(1 * time.Second)
+	backend.txFeed.Send(core.NewTxsEvent{Txs: transactions})
+
+	timeout := time.Now().Add(1 * time.Second)
+	for {
+		results, err := api.GetFilterChanges(fid0)
+		if err != nil {
+			t.Fatalf("Unable to retrieve logs: %v", err)
+		}
+
+		tx := results.([]*ethapi.RPCTransaction)
 		txs = append(txs, tx...)
 		if len(txs) >= len(transactions) {
 			break
@@ -289,8 +348,8 @@ func TestPendingTxFilter(t *testing.T) {
 		return
 	}
 	for i := range txs {
-		if txs[i].Hash() != transactions[i].Hash() {
-			t.Errorf("hashes[%d] invalid, want %x, got %x", i, transactions[i].Hash(), txs[i].Hash())
+		if txs[i].Hash != transactions[i].Hash() {
+			t.Errorf("hashes[%d] invalid, want %x, got %x", i, transactions[i].Hash(), txs[i].Hash)
 		}
 	}
 }
@@ -854,15 +913,15 @@ func TestPendingTxFilterDeadlock(t *testing.T) {
 	// timeout either in 100ms or 200ms
 	fids := make([]rpc.ID, 20)
 	for i := 0; i < len(fids); i++ {
-		fid := api.NewPendingTransactionFilter()
+		fid := api.NewPendingTransactionFilter(nil)
 		fids[i] = fid
 		// Wait for at least one tx to arrive in filter
 		for {
-			txs, err := api.GetFilterChanges(fid)
+			hashes, err := api.GetFilterChanges(fid)
 			if err != nil {
 				t.Fatalf("Filter should exist: %v\n", err)
 			}
-			if len(txs.([]*types.Transaction)) > 0 {
+			if len(hashes.([]common.Hash)) > 0 {
 				break
 			}
 			runtime.Gosched()
diff --git a/eth/protocols/snap/handler.go b/eth/protocols/snap/handler.go
index 6941d522a..d7c940044 100644
--- a/eth/protocols/snap/handler.go
+++ b/eth/protocols/snap/handler.go
@@ -23,6 +23,7 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/light"
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/metrics"
@@ -464,7 +465,7 @@ func ServiceGetByteCodesQuery(chain *core.BlockChain, req *GetByteCodesPacket) [
 		bytes uint64
 	)
 	for _, hash := range req.Hashes {
-		if hash == emptyCode {
+		if hash == types.EmptyCodeHash {
 			// Peers should not request the empty code, but if they do, at
 			// least sent them back a correct response without db lookups
 			codes = append(codes, []byte{})
diff --git a/eth/protocols/snap/sync.go b/eth/protocols/snap/sync.go
index 052d8eaca..13279fd96 100644
--- a/eth/protocols/snap/sync.go
+++ b/eth/protocols/snap/sync.go
@@ -46,14 +46,6 @@ import (
 	"golang.org/x/crypto/sha3"
 )
 
-var (
-	// emptyRoot is the known root hash of an empty trie.
-	emptyRoot = common.HexToHash("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")
-
-	// emptyCode is the known hash of the empty EVM bytecode.
-	emptyCode = crypto.Keccak256Hash(nil)
-)
-
 const (
 	// minRequestSize is the minimum number of bytes to request from a remote peer.
 	// This number is used as the low cap for account and storage range requests.
@@ -1833,7 +1825,7 @@ func (s *Syncer) processAccountResponse(res *accountResponse) {
 	res.task.pend = 0
 	for i, account := range res.accounts {
 		// Check if the account is a contract with an unknown code
-		if !bytes.Equal(account.CodeHash, emptyCode[:]) {
+		if !bytes.Equal(account.CodeHash, types.EmptyCodeHash.Bytes()) {
 			if !rawdb.HasCodeWithPrefix(s.db, common.BytesToHash(account.CodeHash)) {
 				res.task.codeTasks[common.BytesToHash(account.CodeHash)] = struct{}{}
 				res.task.needCode[i] = true
@@ -1841,7 +1833,7 @@ func (s *Syncer) processAccountResponse(res *accountResponse) {
 			}
 		}
 		// Check if the account is a contract with an unknown storage trie
-		if account.Root != emptyRoot {
+		if account.Root != types.EmptyRootHash {
 			if !rawdb.HasTrieNode(s.db, res.hashes[i], nil, account.Root, s.scheme) {
 				// If there was a previous large state retrieval in progress,
 				// don't restart it from scratch. This happens if a sync cycle
diff --git a/eth/protocols/snap/sync_test.go b/eth/protocols/snap/sync_test.go
index 971605d8c..0a6117972 100644
--- a/eth/protocols/snap/sync_test.go
+++ b/eth/protocols/snap/sync_test.go
@@ -1354,7 +1354,7 @@ func getCodeHash(i uint64) []byte {
 
 // getCodeByHash convenience function to lookup the code from the code hash
 func getCodeByHash(hash common.Hash) []byte {
-	if hash == emptyCode {
+	if hash == types.EmptyCodeHash {
 		return nil
 	}
 	for i, h := range codehashes {
@@ -1376,7 +1376,7 @@ func makeAccountTrieNoStorage(n int) (string, *trie.Trie, entrySlice) {
 		value, _ := rlp.EncodeToBytes(&types.StateAccount{
 			Nonce:    i,
 			Balance:  big.NewInt(int64(i)),
-			Root:     emptyRoot,
+			Root:     types.EmptyRootHash,
 			CodeHash: getCodeHash(i),
 		})
 		key := key32(i)
@@ -1427,7 +1427,7 @@ func makeBoundaryAccountTrie(n int) (string, *trie.Trie, entrySlice) {
 		value, _ := rlp.EncodeToBytes(&types.StateAccount{
 			Nonce:    uint64(0),
 			Balance:  big.NewInt(int64(i)),
-			Root:     emptyRoot,
+			Root:     types.EmptyRootHash,
 			CodeHash: getCodeHash(uint64(i)),
 		})
 		elem := &kv{boundaries[i].Bytes(), value}
@@ -1439,7 +1439,7 @@ func makeBoundaryAccountTrie(n int) (string, *trie.Trie, entrySlice) {
 		value, _ := rlp.EncodeToBytes(&types.StateAccount{
 			Nonce:    i,
 			Balance:  big.NewInt(int64(i)),
-			Root:     emptyRoot,
+			Root:     types.EmptyRootHash,
 			CodeHash: getCodeHash(i),
 		})
 		elem := &kv{key32(i), value}
@@ -1472,7 +1472,7 @@ func makeAccountTrieWithStorageWithUniqueStorage(accounts, slots int, code bool)
 	// Create n accounts in the trie
 	for i := uint64(1); i <= uint64(accounts); i++ {
 		key := key32(i)
-		codehash := emptyCode[:]
+		codehash := types.EmptyCodeHash.Bytes()
 		if code {
 			codehash = getCodeHash(i)
 		}
@@ -1527,7 +1527,7 @@ func makeAccountTrieWithStorage(accounts, slots int, code, boundary bool) (strin
 	// Create n accounts in the trie
 	for i := uint64(1); i <= uint64(accounts); i++ {
 		key := key32(i)
-		codehash := emptyCode[:]
+		codehash := types.EmptyCodeHash.Bytes()
 		if code {
 			codehash = getCodeHash(i)
 		}
@@ -1678,7 +1678,7 @@ func verifyTrie(db ethdb.KeyValueStore, root common.Hash, t *testing.T) {
 			log.Crit("Invalid account encountered during snapshot creation", "err", err)
 		}
 		accounts++
-		if acc.Root != emptyRoot {
+		if acc.Root != types.EmptyRootHash {
 			id := trie.StorageTrieID(root, common.BytesToHash(accIt.Key), acc.Root)
 			storeTrie, err := trie.NewStateTrie(id, triedb)
 			if err != nil {
diff --git a/ethclient/ethclient.go b/ethclient/ethclient.go
index 1d2df5466..460035f36 100644
--- a/ethclient/ethclient.go
+++ b/ethclient/ethclient.go
@@ -131,10 +131,10 @@ func (ec *Client) getBlock(ctx context.Context, method string, args ...interface
 	if head.UncleHash != types.EmptyUncleHash && len(body.UncleHashes) == 0 {
 		return nil, fmt.Errorf("server returned empty uncle list but block header indicates uncles")
 	}
-	if head.TxHash == types.EmptyRootHash && len(body.Transactions) > 0 {
+	if head.TxHash == types.EmptyTxsHash && len(body.Transactions) > 0 {
 		return nil, fmt.Errorf("server returned non-empty transaction list but block header indicates no transactions")
 	}
-	if head.TxHash != types.EmptyRootHash && len(body.Transactions) == 0 {
+	if head.TxHash != types.EmptyTxsHash && len(body.Transactions) == 0 {
 		return nil, fmt.Errorf("server returned empty transaction list but block header indicates transactions")
 	}
 	// Load uncles because they are not included in the block response.
diff --git a/les/fetcher/block_fetcher.go b/les/fetcher/block_fetcher.go
index c76f20ced..085ecb2d6 100644
--- a/les/fetcher/block_fetcher.go
+++ b/les/fetcher/block_fetcher.go
@@ -548,7 +548,7 @@ func (f *BlockFetcher) loop() {
 						announce.time = task.time
 
 						// If the block is empty (header only), short circuit into the final import queue
-						if header.TxHash == types.EmptyRootHash && header.UncleHash == types.EmptyUncleHash {
+						if header.TxHash == types.EmptyTxsHash && header.UncleHash == types.EmptyUncleHash {
 							log.Trace("Block empty, skipping body retrieval", "peer", announce.origin, "number", header.Number, "hash", header.Hash())
 
 							block := types.NewBlockWithHeader(header)
diff --git a/les/server_requests.go b/les/server_requests.go
index 3563bf93c..033b11d79 100644
--- a/les/server_requests.go
+++ b/les/server_requests.go
@@ -348,7 +348,7 @@ func handleGetReceipts(msg Decoder) (serveRequestFn, uint64, uint64, error) {
 			// Retrieve the requested block's receipts, skipping if unknown to us
 			results := bc.GetReceiptsByHash(hash)
 			if results == nil {
-				if header := bc.GetHeaderByHash(hash); header == nil || header.ReceiptHash != types.EmptyRootHash {
+				if header := bc.GetHeaderByHash(hash); header == nil || header.ReceiptHash != types.EmptyReceiptsHash {
 					p.bumpInvalid()
 					continue
 				}
diff --git a/light/lightchain_test.go b/light/lightchain_test.go
index 8600e5634..d19713dc2 100644
--- a/light/lightchain_test.go
+++ b/light/lightchain_test.go
@@ -253,8 +253,8 @@ func makeHeaderChainWithDiff(genesis *types.Block, d []int, seed byte) []*types.
 			Number:      big.NewInt(int64(i + 1)),
 			Difficulty:  big.NewInt(int64(difficulty)),
 			UncleHash:   types.EmptyUncleHash,
-			TxHash:      types.EmptyRootHash,
-			ReceiptHash: types.EmptyRootHash,
+			TxHash:      types.EmptyTxsHash,
+			ReceiptHash: types.EmptyReceiptsHash,
 		}
 		if i == 0 {
 			header.ParentHash = genesis.Hash()
diff --git a/params/version.go b/params/version.go
index 2a62c17b5..8bbf0b99b 100644
--- a/params/version.go
+++ b/params/version.go
@@ -23,7 +23,7 @@ import (
 const (
 	VersionMajor = 1        // Major version component of the current release
 	VersionMinor = 11       // Minor version component of the current release
-	VersionPatch = 1        // Patch version component of the current release
+	VersionPatch = 2        // Patch version component of the current release
 	VersionMeta  = "stable" // Version metadata to append to the version string
 )
 
diff --git a/rpc/client.go b/rpc/client.go
index a509cb2e0..69ff4851e 100644
--- a/rpc/client.go
+++ b/rpc/client.go
@@ -345,7 +345,10 @@ func (c *Client) CallContext(ctx context.Context, result interface{}, method str
 	case len(resp.Result) == 0:
 		return ErrNoResult
 	default:
-		return json.Unmarshal(resp.Result, &result)
+		if result == nil {
+			return nil
+		}
+		return json.Unmarshal(resp.Result, result)
 	}
 }
 
diff --git a/rpc/client_test.go b/rpc/client_test.go
index 0a88ce40b..a94a54929 100644
--- a/rpc/client_test.go
+++ b/rpc/client_test.go
@@ -69,6 +69,26 @@ func TestClientResponseType(t *testing.T) {
 	}
 }
 
+// This test checks calling a method that returns 'null'.
+func TestClientNullResponse(t *testing.T) {
+	server := newTestServer()
+	defer server.Stop()
+
+	client := DialInProc(server)
+	defer client.Close()
+
+	var result json.RawMessage
+	if err := client.Call(&result, "test_null"); err != nil {
+		t.Fatal(err)
+	}
+	if result == nil {
+		t.Fatal("Expected non-nil result")
+	}
+	if !reflect.DeepEqual(result, json.RawMessage("null")) {
+		t.Errorf("Expected null, got %s", result)
+	}
+}
+
 // This test checks that server-returned errors with code and data come out of Client.Call.
 func TestClientErrorData(t *testing.T) {
 	server := newTestServer()
diff --git a/rpc/server_test.go b/rpc/server_test.go
index c9abe53e5..f1a9b3d5c 100644
--- a/rpc/server_test.go
+++ b/rpc/server_test.go
@@ -45,7 +45,7 @@ func TestServerRegisterName(t *testing.T) {
 		t.Fatalf("Expected service calc to be registered")
 	}
 
-	wantCallbacks := 12
+	wantCallbacks := 13
 	if len(svc.callbacks) != wantCallbacks {
 		t.Errorf("Expected %d callbacks for service 'service', got %d", wantCallbacks, len(svc.callbacks))
 	}
diff --git a/rpc/testservice_test.go b/rpc/testservice_test.go
index 8454a4019..eab67f1dd 100644
--- a/rpc/testservice_test.go
+++ b/rpc/testservice_test.go
@@ -78,6 +78,10 @@ func (o *MarshalErrObj) MarshalText() ([]byte, error) {
 
 func (s *testService) NoArgsRets() {}
 
+func (s *testService) Null() any {
+	return nil
+}
+
 func (s *testService) Echo(str string, i int, args *echoArgs) echoResult {
 	return echoResult{str, i, args}
 }
diff --git a/trie/database.go b/trie/database.go
index 74247d59c..895ffdf89 100644
--- a/trie/database.go
+++ b/trie/database.go
@@ -808,7 +808,7 @@ func (db *Database) Update(nodes *MergedNodeSet) error {
 			if err := rlp.DecodeBytes(n.blob, &account); err != nil {
 				return err
 			}
-			if account.Root != emptyRoot {
+			if account.Root != types.EmptyRootHash {
 				db.reference(account.Root, n.parent)
 			}
 		}
diff --git a/trie/iterator.go b/trie/iterator.go
index aa621cd54..f42beec4a 100644
--- a/trie/iterator.go
+++ b/trie/iterator.go
@@ -22,6 +22,7 @@ import (
 	"errors"
 
 	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
 )
 
 // NodeResolver is used for looking up trie nodes before reaching into the real
@@ -160,7 +161,7 @@ func (e seekError) Error() string {
 }
 
 func newNodeIterator(trie *Trie, start []byte) NodeIterator {
-	if trie.Hash() == emptyRoot {
+	if trie.Hash() == types.EmptyRootHash {
 		return &nodeIterator{
 			trie: trie,
 			err:  errIteratorEnd,
@@ -302,7 +303,7 @@ func (it *nodeIterator) seek(prefix []byte) error {
 func (it *nodeIterator) init() (*nodeIteratorState, error) {
 	root := it.trie.Hash()
 	state := &nodeIteratorState{node: it.trie.root, index: -1}
-	if root != emptyRoot {
+	if root != types.EmptyRootHash {
 		state.hash = root
 	}
 	return state, state.resolve(it, nil)
diff --git a/trie/stacktrie.go b/trie/stacktrie.go
index fb8cc0d76..e7b3171af 100644
--- a/trie/stacktrie.go
+++ b/trie/stacktrie.go
@@ -25,6 +25,7 @@ import (
 	"sync"
 
 	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/log"
 )
 
@@ -407,7 +408,7 @@ func (st *StackTrie) hashRec(hasher *hasher, path []byte) {
 		return
 
 	case emptyNode:
-		st.val = emptyRoot.Bytes()
+		st.val = types.EmptyRootHash.Bytes()
 		st.key = st.key[:0]
 		st.nodeType = hashedNode
 		return
diff --git a/trie/sync.go b/trie/sync.go
index 4bf735c02..4f5584599 100644
--- a/trie/sync.go
+++ b/trie/sync.go
@@ -24,6 +24,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/prque"
 	"github.com/ethereum/go-ethereum/core/rawdb"
+	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/log"
 )
@@ -184,7 +185,7 @@ func NewSync(root common.Hash, database ethdb.KeyValueReader, callback LeafCallb
 // hex format and contain all the parent path if it's layered trie node.
 func (s *Sync) AddSubTrie(root common.Hash, path []byte, parent common.Hash, parentPath []byte, callback LeafCallback) {
 	// Short circuit if the trie is empty or already known
-	if root == emptyRoot {
+	if root == types.EmptyRootHash {
 		return
 	}
 	if s.membatch.hasNode(path) {
@@ -217,7 +218,7 @@ func (s *Sync) AddSubTrie(root common.Hash, path []byte, parent common.Hash, par
 // as is.
 func (s *Sync) AddCodeEntry(hash common.Hash, path []byte, parent common.Hash, parentPath []byte) {
 	// Short circuit if the entry is empty or already known
-	if hash == emptyState {
+	if hash == types.EmptyCodeHash {
 		return
 	}
 	if s.membatch.hasCode(hash) {
diff --git a/trie/sync_test.go b/trie/sync_test.go
index 709f22949..fc871a22c 100644
--- a/trie/sync_test.go
+++ b/trie/sync_test.go
@@ -23,6 +23,7 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/rawdb"
+	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/ethdb/memorydb"
 )
@@ -104,7 +105,7 @@ func TestEmptySync(t *testing.T) {
 	dbA := NewDatabase(rawdb.NewMemoryDatabase())
 	dbB := NewDatabase(rawdb.NewMemoryDatabase())
 	emptyA, _ := New(TrieID(common.Hash{}), dbA)
-	emptyB, _ := New(TrieID(emptyRoot), dbB)
+	emptyB, _ := New(TrieID(types.EmptyRootHash), dbB)
 
 	for i, trie := range []*Trie{emptyA, emptyB} {
 		sync := NewSync(trie.Hash(), memorydb.New(), nil, []*Database{dbA, dbB}[i].Scheme())
diff --git a/trie/trie.go b/trie/trie.go
index c467ac476..cf9108f10 100644
--- a/trie/trie.go
+++ b/trie/trie.go
@@ -23,18 +23,10 @@ import (
 	"fmt"
 
 	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/crypto"
+	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/log"
 )
 
-var (
-	// emptyRoot is the known root hash of an empty trie.
-	emptyRoot = common.HexToHash("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")
-
-	// emptyState is the known hash of an empty state trie entry.
-	emptyState = crypto.Keccak256Hash(nil)
-)
-
 // Trie is a Merkle Patricia Trie. Use New to create a trie that sits on
 // top of a database. Whenever trie performs a commit operation, the generated
 // nodes will be gathered and returned in a set. Once the trie is committed,
@@ -91,7 +83,7 @@ func New(id *ID, db NodeReader) (*Trie, error) {
 		reader: reader,
 		//tracer: newTracer(),
 	}
-	if id.Root != (common.Hash{}) && id.Root != emptyRoot {
+	if id.Root != (common.Hash{}) && id.Root != types.EmptyRootHash {
 		rootnode, err := trie.resolveAndTrack(id.Root[:], nil)
 		if err != nil {
 			return nil, err
@@ -576,7 +568,7 @@ func (t *Trie) Commit(collectLeaf bool) (common.Hash, *NodeSet) {
 		// Wrap tracked deletions as the return
 		set := NewNodeSet(t.owner)
 		t.tracer.markDeletions(set)
-		return emptyRoot, set
+		return types.EmptyRootHash, set
 	}
 	// Derive the hash for all dirty nodes first. We hold the assumption
 	// in the following procedure that all nodes are hashed.
@@ -599,7 +591,7 @@ func (t *Trie) Commit(collectLeaf bool) (common.Hash, *NodeSet) {
 // hashRoot calculates the root hash of the given trie
 func (t *Trie) hashRoot() (node, node, error) {
 	if t.root == nil {
-		return hashNode(emptyRoot.Bytes()), nil, nil
+		return hashNode(types.EmptyRootHash.Bytes()), nil, nil
 	}
 	// If the number of changes is below 100, we let one thread handle it
 	h := newHasher(t.unhashed >= 100)
diff --git a/trie/trie_test.go b/trie/trie_test.go
index 2fb97eebb..2f56c89cd 100644
--- a/trie/trie_test.go
+++ b/trie/trie_test.go
@@ -47,7 +47,7 @@ func init() {
 func TestEmptyTrie(t *testing.T) {
 	trie := NewEmpty(NewDatabase(rawdb.NewMemoryDatabase()))
 	res := trie.Hash()
-	exp := emptyRoot
+	exp := types.EmptyRootHash
 	if res != exp {
 		t.Errorf("expected %x got %x", exp, res)
 	}
@@ -431,7 +431,7 @@ func runRandTest(rt randTest) bool {
 			}
 		case opProve:
 			hash := tr.Hash()
-			if hash == emptyRoot {
+			if hash == types.EmptyRootHash {
 				continue
 			}
 			proofDb := rawdb.NewMemoryDatabase()
@@ -718,7 +718,7 @@ func makeAccounts(size int) (addresses [][20]byte, accounts [][]byte) {
 	for i := 0; i < len(accounts); i++ {
 		var (
 			nonce = uint64(random.Int63())
-			root  = emptyRoot
+			root  = types.EmptyRootHash
 			code  = crypto.Keccak256(nil)
 		)
 		// The big.Rand function is not deterministic with regards to 64 vs 32 bit systems,
diff --git a/trie/util_test.go b/trie/util_test.go
index 01a46553a..8d925a16a 100644
--- a/trie/util_test.go
+++ b/trie/util_test.go
@@ -22,6 +22,7 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/rawdb"
+	"github.com/ethereum/go-ethereum/core/types"
 )
 
 // Tests if the trie diffs are tracked correctly.
@@ -286,7 +287,7 @@ func TestDeleteAll(t *testing.T) {
 		trie.Delete([]byte(val.k))
 	}
 	root, set = trie.Commit(false)
-	if root != emptyRoot {
+	if root != types.EmptyRootHash {
 		t.Fatalf("Invalid trie root %v", root)
 	}
 	for path, blob := range set.deletes {