Block v3 endpoint (#4629)

## Issue Addressed

#4582

## Proposed Changes

Add a new v3 block fetching flow that can decide to return a Full OR Blinded payload

## Additional Info



Co-authored-by: Michael Sproul <micsproul@gmail.com>

beacon_node/beacon_chain/src/beacon_block_reward.rs

@@ -33,6 +33,17 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
         state.build_committee_cache(RelativeEpoch::Previous, &self.spec)?;
         state.build_committee_cache(RelativeEpoch::Current, &self.spec)?;
 
+        self.compute_beacon_block_reward_with_cache(block, block_root, state)
+    }
+
+    // This should only be called after a committee cache has been built
+    // for both the previous and current epoch
+    fn compute_beacon_block_reward_with_cache<Payload: AbstractExecPayload<T::EthSpec>>(
+        &self,
+        block: BeaconBlockRef<'_, T::EthSpec, Payload>,
+        block_root: Hash256,
+        state: &BeaconState<T::EthSpec>,
+    ) -> Result<StandardBlockReward, BeaconChainError> {
         let proposer_index = block.proposer_index();
 
         let sync_aggregate_reward =
@@ -178,7 +189,7 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
     >(
         &self,
         block: BeaconBlockRef<'_, T::EthSpec, Payload>,
-        state: &mut BeaconState<T::EthSpec>,
+        state: &BeaconState<T::EthSpec>,
     ) -> Result<BeaconBlockSubRewardValue, BeaconChainError> {
         let total_active_balance = state.get_total_active_balance()?;
         let base_reward_per_increment =
@@ -191,6 +202,9 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
             .safe_mul(WEIGHT_DENOMINATOR)?
             .safe_div(PROPOSER_WEIGHT)?;
 
+        let mut current_epoch_participation = state.current_epoch_participation()?.clone();
+        let mut previous_epoch_participation = state.previous_epoch_participation()?.clone();
+
         for attestation in block.body().attestations() {
             let data = &attestation.data;
             let inclusion_delay = state.slot().safe_sub(data.slot)?.as_u64();
@@ -203,13 +217,16 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
             )?;
 
             let attesting_indices = get_attesting_indices_from_state(state, attestation)?;
-
             let mut proposer_reward_numerator = 0;
             for index in attesting_indices {
                 let index = index as usize;
                 for (flag_index, &weight) in PARTICIPATION_FLAG_WEIGHTS.iter().enumerate() {
-                    let epoch_participation =
+                    let epoch_participation = if data.target.epoch == state.current_epoch() {
-                        state.get_epoch_participation_mut(data.target.epoch)?;
+                        &mut current_epoch_participation
+                    } else {
+                        &mut previous_epoch_participation
+                    };
+
                     let validator_participation = epoch_participation
                         .get_mut(index)
                         .ok_or(BeaconStateError::ParticipationOutOfBounds(index))?;

beacon_node/beacon_chain/src/beacon_chain.rs

@@ -72,8 +72,8 @@ use crate::{
 };
 use eth2::types::{EventKind, SseBlobSidecar, SseBlock, SseExtendedPayloadAttributes, SyncDuty};
 use execution_layer::{
-    BlockProposalContents, BuilderParams, ChainHealth, ExecutionLayer, FailedCondition,
+    BlockProposalContents, BlockProposalContentsType, BuilderParams, ChainHealth, ExecutionLayer,
-    PayloadAttributes, PayloadStatus,
+    FailedCondition, PayloadAttributes, PayloadStatus,
 };
 use fork_choice::{
     AttestationFromBlock, ExecutionStatus, ForkChoice, ForkchoiceUpdateParameters,
@@ -120,6 +120,7 @@ use tokio_stream::Stream;
 use tree_hash::TreeHash;
 use types::beacon_state::CloneConfig;
 use types::blob_sidecar::{BlobSidecarList, FixedBlobSidecarList};
+use types::payload::BlockProductionVersion;
 use types::sidecar::BlobItems;
 use types::*;
 
@@ -320,8 +321,7 @@ pub trait BeaconChainTypes: Send + Sync + 'static {
     type EthSpec: types::EthSpec;
 }
 
-/// Used internally to split block production into discrete functions.
+struct PartialBeaconBlock<E: EthSpec> {
-struct PartialBeaconBlock<E: EthSpec, Payload: AbstractExecPayload<E>> {
     state: BeaconState<E>,
     slot: Slot,
     proposer_index: u64,
@@ -335,7 +335,7 @@ struct PartialBeaconBlock<E: EthSpec, Payload: AbstractExecPayload<E>> {
     deposits: Vec<Deposit>,
     voluntary_exits: Vec<SignedVoluntaryExit>,
     sync_aggregate: Option<SyncAggregate<E>>,
-    prepare_payload_handle: Option<PreparePayloadHandle<E, Payload>>,
+    prepare_payload_handle: Option<PreparePayloadHandle<E>>,
     bls_to_execution_changes: Vec<SignedBlsToExecutionChange>,
 }
 
@@ -484,11 +484,18 @@ pub struct BeaconChain<T: BeaconChainTypes> {
     pub kzg: Option<Arc<Kzg>>,
 }
 
-type BeaconBlockAndState<T, Payload> = (
+pub enum BeaconBlockResponseType<T: EthSpec> {
-    BeaconBlock<T, Payload>,
+    Full(BeaconBlockResponse<T, FullPayload<T>>),
-    BeaconState<T>,
+    Blinded(BeaconBlockResponse<T, BlindedPayload<T>>),
-    Option<SidecarList<T, <Payload as AbstractExecPayload<T>>::Sidecar>>,
+}
-);
+
+pub struct BeaconBlockResponse<T: EthSpec, Payload: AbstractExecPayload<T>> {
+    pub block: BeaconBlock<T, Payload>,
+    pub state: BeaconState<T>,
+    pub maybe_side_car: Option<SidecarList<T, <Payload as AbstractExecPayload<T>>::Sidecar>>,
+    pub execution_payload_value: Option<Uint256>,
+    pub consensus_block_value: Option<u64>,
+}
 
 impl FinalizationAndCanonicity {
     pub fn is_finalized(self) -> bool {
@@ -3949,38 +3956,16 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
         Ok(())
     }
 
-    /// Produce a new block at the given `slot`.
+    pub async fn produce_block_with_verification(
-    ///
-    /// The produced block will not be inherently valid, it must be signed by a block producer.
-    /// Block signing is out of the scope of this function and should be done by a separate program.
-    pub async fn produce_block<Payload: AbstractExecPayload<T::EthSpec> + 'static>(
-        self: &Arc<Self>,
-        randao_reveal: Signature,
-        slot: Slot,
-        validator_graffiti: Option<Graffiti>,
-    ) -> Result<BeaconBlockAndState<T::EthSpec, Payload>, BlockProductionError> {
-        self.produce_block_with_verification(
-            randao_reveal,
-            slot,
-            validator_graffiti,
-            ProduceBlockVerification::VerifyRandao,
-        )
-        .await
-    }
-
-    /// Same as `produce_block` but allowing for configuration of RANDAO-verification.
-    pub async fn produce_block_with_verification<
-        Payload: AbstractExecPayload<T::EthSpec> + 'static,
-    >(
         self: &Arc<Self>,
         randao_reveal: Signature,
         slot: Slot,
         validator_graffiti: Option<Graffiti>,
         verification: ProduceBlockVerification,
-    ) -> Result<BeaconBlockAndState<T::EthSpec, Payload>, BlockProductionError> {
+        block_production_version: BlockProductionVersion,
+    ) -> Result<BeaconBlockResponseType<T::EthSpec>, BlockProductionError> {
         metrics::inc_counter(&metrics::BLOCK_PRODUCTION_REQUESTS);
         let _complete_timer = metrics::start_timer(&metrics::BLOCK_PRODUCTION_TIMES);
-
         // Part 1/2 (blocking)
         //
         // Load the parent state from disk.
@@ -3998,13 +3983,14 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
         // Part 2/2 (async, with some blocking components)
         //
         // Produce the block upon the state
-        self.produce_block_on_state::<Payload>(
+        self.produce_block_on_state(
             state,
             state_root_opt,
             slot,
             randao_reveal,
             validator_graffiti,
             verification,
+            block_production_version,
         )
         .await
     }
@@ -4568,7 +4554,8 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
     /// The provided `state_root_opt` should only ever be set to `Some` if the contained value is
     /// equal to the root of `state`. Providing this value will serve as an optimization to avoid
     /// performing a tree hash in some scenarios.
-    pub async fn produce_block_on_state<Payload: AbstractExecPayload<T::EthSpec> + 'static>(
+    #[allow(clippy::too_many_arguments)]
+    pub async fn produce_block_on_state(
         self: &Arc<Self>,
         state: BeaconState<T::EthSpec>,
         state_root_opt: Option<Hash256>,
@@ -4576,7 +4563,8 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
         randao_reveal: Signature,
         validator_graffiti: Option<Graffiti>,
         verification: ProduceBlockVerification,
-    ) -> Result<BeaconBlockAndState<T::EthSpec, Payload>, BlockProductionError> {
+        block_production_version: BlockProductionVersion,
+    ) -> Result<BeaconBlockResponseType<T::EthSpec>, BlockProductionError> {
         // Part 1/3 (blocking)
         //
         // Perform the state advance and block-packing functions.
@@ -4591,6 +4579,7 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
                         produce_at_slot,
                         randao_reveal,
                         validator_graffiti,
+                        block_production_version,
                     )
                 },
                 "produce_partial_beacon_block",
@@ -4598,12 +4587,12 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
             .ok_or(BlockProductionError::ShuttingDown)?
             .await
             .map_err(BlockProductionError::TokioJoin)??;
-
         // Part 2/3 (async)
         //
         // Wait for the execution layer to return an execution payload (if one is required).
         let prepare_payload_handle = partial_beacon_block.prepare_payload_handle.take();
-        let block_contents = if let Some(prepare_payload_handle) = prepare_payload_handle {
+        let block_contents_type_option =
+            if let Some(prepare_payload_handle) = prepare_payload_handle {
                 Some(
                     prepare_payload_handle
                         .await
@@ -4613,17 +4602,18 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
             } else {
                 None
             };
-
         // Part 3/3 (blocking)
-        //
+        if let Some(block_contents_type) = block_contents_type_option {
-        // Perform the final steps of combining all the parts and computing the state root.
+            match block_contents_type {
+                BlockProposalContentsType::Full(block_contents) => {
                     let chain = self.clone();
-        self.task_executor
+                    let beacon_block_response = self
+                        .task_executor
                         .spawn_blocking_handle(
                             move || {
                                 chain.complete_partial_beacon_block(
                                     partial_beacon_block,
-                        block_contents,
+                                    Some(block_contents),
                                     verification,
                                 )
                             },
@@ -4631,17 +4621,62 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
                         )
                         .ok_or(BlockProductionError::ShuttingDown)?
                         .await
-            .map_err(BlockProductionError::TokioJoin)?
+                        .map_err(BlockProductionError::TokioJoin)??;
+
+                    Ok(BeaconBlockResponseType::Full(beacon_block_response))
+                }
+                BlockProposalContentsType::Blinded(block_contents) => {
+                    let chain = self.clone();
+                    let beacon_block_response = self
+                        .task_executor
+                        .spawn_blocking_handle(
+                            move || {
+                                chain.complete_partial_beacon_block(
+                                    partial_beacon_block,
+                                    Some(block_contents),
+                                    verification,
+                                )
+                            },
+                            "complete_partial_beacon_block",
+                        )
+                        .ok_or(BlockProductionError::ShuttingDown)?
+                        .await
+                        .map_err(BlockProductionError::TokioJoin)??;
+
+                    Ok(BeaconBlockResponseType::Blinded(beacon_block_response))
+                }
+            }
+        } else {
+            let chain = self.clone();
+            let beacon_block_response = self
+                .task_executor
+                .spawn_blocking_handle(
+                    move || {
+                        chain.complete_partial_beacon_block(
+                            partial_beacon_block,
+                            None,
+                            verification,
+                        )
+                    },
+                    "complete_partial_beacon_block",
+                )
+                .ok_or(BlockProductionError::ShuttingDown)?
+                .await
+                .map_err(BlockProductionError::TokioJoin)??;
+
+            Ok(BeaconBlockResponseType::Full(beacon_block_response))
+        }
     }
 
-    fn produce_partial_beacon_block<Payload: AbstractExecPayload<T::EthSpec> + 'static>(
+    fn produce_partial_beacon_block(
         self: &Arc<Self>,
         mut state: BeaconState<T::EthSpec>,
         state_root_opt: Option<Hash256>,
         produce_at_slot: Slot,
         randao_reveal: Signature,
         validator_graffiti: Option<Graffiti>,
-    ) -> Result<PartialBeaconBlock<T::EthSpec, Payload>, BlockProductionError> {
+        block_production_version: BlockProductionVersion,
+    ) -> Result<PartialBeaconBlock<T::EthSpec>, BlockProductionError> {
         let eth1_chain = self
             .eth1_chain
             .as_ref()
@@ -4701,6 +4736,7 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
                     parent_root,
                     proposer_index,
                     builder_params,
+                    block_production_version,
                 )?;
                 Some(prepare_payload_handle)
             }
@@ -4710,6 +4746,7 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
             self.op_pool.get_slashings_and_exits(&state, &self.spec);
 
         let eth1_data = eth1_chain.eth1_data_for_block_production(&state, &self.spec)?;
+
         let deposits = eth1_chain.deposits_for_block_inclusion(&state, &eth1_data, &self.spec)?;
 
         let bls_to_execution_changes = self
@@ -4880,10 +4917,10 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
 
     fn complete_partial_beacon_block<Payload: AbstractExecPayload<T::EthSpec>>(
         &self,
-        partial_beacon_block: PartialBeaconBlock<T::EthSpec, Payload>,
+        partial_beacon_block: PartialBeaconBlock<T::EthSpec>,
         block_contents: Option<BlockProposalContents<T::EthSpec, Payload>>,
         verification: ProduceBlockVerification,
-    ) -> Result<BeaconBlockAndState<T::EthSpec, Payload>, BlockProductionError> {
+    ) -> Result<BeaconBlockResponse<T::EthSpec, Payload>, BlockProductionError> {
         let PartialBeaconBlock {
             mut state,
             slot,
@@ -4905,7 +4942,7 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
             bls_to_execution_changes,
         } = partial_beacon_block;
 
-        let (inner_block, blobs_opt, proofs_opt) = match &state {
+        let (inner_block, blobs_opt, proofs_opt, execution_payload_value) = match &state {
             BeaconState::Base(_) => (
                 BeaconBlock::Base(BeaconBlockBase {
                     slot,
@@ -4926,6 +4963,7 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
                 }),
                 None,
                 None,
+                Uint256::zero(),
             ),
             BeaconState::Altair(_) => (
                 BeaconBlock::Altair(BeaconBlockAltair {
@@ -4949,11 +4987,12 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
                 }),
                 None,
                 None,
+                Uint256::zero(),
             ),
             BeaconState::Merge(_) => {
-                let (payload, _, _, _) = block_contents
+                let block_proposal_contents =
-                    .ok_or(BlockProductionError::MissingExecutionPayload)?
+                    block_contents.ok_or(BlockProductionError::MissingExecutionPayload)?;
-                    .deconstruct();
+                let execution_payload_value = block_proposal_contents.block_value().to_owned();
                 (
                     BeaconBlock::Merge(BeaconBlockMerge {
                         slot,
@@ -4971,19 +5010,22 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
                             voluntary_exits: voluntary_exits.into(),
                             sync_aggregate: sync_aggregate
                                 .ok_or(BlockProductionError::MissingSyncAggregate)?,
-                            execution_payload: payload
+                            execution_payload: block_proposal_contents
+                                .to_payload()
                                 .try_into()
                                 .map_err(|_| BlockProductionError::InvalidPayloadFork)?,
                         },
                     }),
                     None,
                     None,
+                    execution_payload_value,
                 )
             }
             BeaconState::Capella(_) => {
-                let (payload, _, _, _) = block_contents
+                let block_proposal_contents =
-                    .ok_or(BlockProductionError::MissingExecutionPayload)?
+                    block_contents.ok_or(BlockProductionError::MissingExecutionPayload)?;
-                    .deconstruct();
+                let execution_payload_value = block_proposal_contents.block_value().to_owned();
+
                 (
                     BeaconBlock::Capella(BeaconBlockCapella {
                         slot,
@@ -5001,7 +5043,8 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
                             voluntary_exits: voluntary_exits.into(),
                             sync_aggregate: sync_aggregate
                                 .ok_or(BlockProductionError::MissingSyncAggregate)?,
-                            execution_payload: payload
+                            execution_payload: block_proposal_contents
+                                .to_payload()
                                 .try_into()
                                 .map_err(|_| BlockProductionError::InvalidPayloadFork)?,
                             bls_to_execution_changes: bls_to_execution_changes.into(),
@@ -5009,12 +5052,15 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
                     }),
                     None,
                     None,
+                    execution_payload_value,
                 )
             }
             BeaconState::Deneb(_) => {
-                let (payload, kzg_commitments, blobs, proofs) = block_contents
+                let (payload, kzg_commitments, blobs, proofs, execution_payload_value) =
+                    block_contents
                         .ok_or(BlockProductionError::MissingExecutionPayload)?
                         .deconstruct();
+
                 (
                     BeaconBlock::Deneb(BeaconBlockDeneb {
                         slot,
@@ -5042,6 +5088,7 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
                     }),
                     blobs,
                     proofs,
+                    execution_payload_value,
                 )
             }
         };
@@ -5057,7 +5104,6 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
             self.log,
             "Produced block on state";
             "block_size" => block_size,
-            "slot" => block.slot(),
         );
 
         metrics::observe(&metrics::BLOCK_SIZE, block_size as f64);
@@ -5075,6 +5121,11 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
         // Use a context without block root or proposer index so that both are checked.
         let mut ctxt = ConsensusContext::new(block.slot());
 
+        let consensus_block_value = self
+            .compute_beacon_block_reward(block.message(), Hash256::zero(), &mut state)
+            .map(|reward| reward.total)
+            .unwrap_or(0);
+
         per_block_processing(
             &mut state,
             &block,
@@ -5154,7 +5205,13 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
             "slot" => block.slot()
         );
 
-        Ok((block, state, maybe_sidecar_list))
+        Ok(BeaconBlockResponse {
+            block,
+            state,
+            maybe_side_car: maybe_sidecar_list,
+            execution_payload_value: Some(execution_payload_value),
+            consensus_block_value: Some(consensus_block_value),
+        })
     }
 
     /// This method must be called whenever an execution engine indicates that a payload is

beacon_node/beacon_chain/src/execution_payload.rs

@@ -13,7 +13,8 @@ use crate::{
     ExecutionPayloadError,
 };
 use execution_layer::{
-    BlockProposalContents, BuilderParams, NewPayloadRequest, PayloadAttributes, PayloadStatus,
+    BlockProposalContents, BlockProposalContentsType, BuilderParams, NewPayloadRequest,
+    PayloadAttributes, PayloadStatus,
 };
 use fork_choice::{InvalidationOperation, PayloadVerificationStatus};
 use proto_array::{Block as ProtoBlock, ExecutionStatus};
@@ -26,11 +27,11 @@ use state_processing::per_block_processing::{
 use std::sync::Arc;
 use tokio::task::JoinHandle;
 use tree_hash::TreeHash;
+use types::payload::BlockProductionVersion;
 use types::*;
 
-pub type PreparePayloadResult<E, Payload> =
+pub type PreparePayloadResult<E> = Result<BlockProposalContentsType<E>, BlockProductionError>;
-    Result<BlockProposalContents<E, Payload>, BlockProductionError>;
+pub type PreparePayloadHandle<E> = JoinHandle<Option<PreparePayloadResult<E>>>;
-pub type PreparePayloadHandle<E, Payload> = JoinHandle<Option<PreparePayloadResult<E, Payload>>>;
 
 #[derive(PartialEq)]
 pub enum AllowOptimisticImport {
@@ -398,16 +399,14 @@ pub fn validate_execution_payload_for_gossip<T: BeaconChainTypes>(
 /// Equivalent to the `get_execution_payload` function in the Validator Guide:
 ///
 /// https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/merge/validator.md#block-proposal
-pub fn get_execution_payload<
+pub fn get_execution_payload<T: BeaconChainTypes>(
-    T: BeaconChainTypes,
-    Payload: AbstractExecPayload<T::EthSpec> + 'static,
->(
     chain: Arc<BeaconChain<T>>,
     state: &BeaconState<T::EthSpec>,
     parent_block_root: Hash256,
     proposer_index: u64,
     builder_params: BuilderParams,
-) -> Result<PreparePayloadHandle<T::EthSpec, Payload>, BlockProductionError> {
+    block_production_version: BlockProductionVersion,
+) -> Result<PreparePayloadHandle<T::EthSpec>, BlockProductionError> {
     // Compute all required values from the `state` now to avoid needing to pass it into a spawned
     // task.
     let spec = &chain.spec;
@@ -440,7 +439,7 @@ pub fn get_execution_payload<
         .clone()
         .spawn_handle(
             async move {
-                prepare_execution_payload::<T, Payload>(
+                prepare_execution_payload::<T>(
                     &chain,
                     is_merge_transition_complete,
                     timestamp,
@@ -450,6 +449,7 @@ pub fn get_execution_payload<
                     builder_params,
                     withdrawals,
                     parent_beacon_block_root,
+                    block_production_version,
                 )
                 .await
             },
@@ -475,7 +475,7 @@ pub fn get_execution_payload<
 ///
 /// https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/merge/validator.md#block-proposal
 #[allow(clippy::too_many_arguments)]
-pub async fn prepare_execution_payload<T, Payload>(
+pub async fn prepare_execution_payload<T>(
     chain: &Arc<BeaconChain<T>>,
     is_merge_transition_complete: bool,
     timestamp: u64,
@@ -485,10 +485,10 @@ pub async fn prepare_execution_payload<T, Payload>(
     builder_params: BuilderParams,
     withdrawals: Option<Vec<Withdrawal>>,
     parent_beacon_block_root: Option<Hash256>,
-) -> Result<BlockProposalContents<T::EthSpec, Payload>, BlockProductionError>
+    block_production_version: BlockProductionVersion,
+) -> Result<BlockProposalContentsType<T::EthSpec>, BlockProductionError>
 where
     T: BeaconChainTypes,
-    Payload: AbstractExecPayload<T::EthSpec>,
 {
     let current_epoch = builder_params.slot.epoch(T::EthSpec::slots_per_epoch());
     let spec = &chain.spec;
@@ -506,7 +506,12 @@ where
         if is_terminal_block_hash_set && !is_activation_epoch_reached {
             // Use the "empty" payload if there's a terminal block hash, but we haven't reached the
             // terminal block epoch yet.
-            return BlockProposalContents::default_at_fork(fork).map_err(Into::into);
+            return Ok(BlockProposalContentsType::Full(
+                BlockProposalContents::Payload {
+                    payload: FullPayload::default_at_fork(fork)?,
+                    block_value: Uint256::zero(),
+                },
+            ));
         }
 
         let terminal_pow_block_hash = execution_layer
@@ -519,7 +524,12 @@ where
         } else {
             // If the merge transition hasn't occurred yet and the EL hasn't found the terminal
             // block, return an "empty" payload.
-            return BlockProposalContents::default_at_fork(fork).map_err(Into::into);
+            return Ok(BlockProposalContentsType::Full(
+                BlockProposalContents::Payload {
+                    payload: FullPayload::default_at_fork(fork)?,
+                    block_value: Uint256::zero(),
+                },
+            ));
         }
     } else {
         latest_execution_payload_header_block_hash
@@ -558,13 +568,14 @@ where
     //
     // This future is not executed here, it's up to the caller to await it.
     let block_contents = execution_layer
-        .get_payload::<Payload>(
+        .get_payload(
             parent_hash,
             &payload_attributes,
             forkchoice_update_params,
             builder_params,
             fork,
             &chain.spec,
+            block_production_version,
         )
         .await
         .map_err(BlockProductionError::GetPayloadFailed)?;

beacon_node/beacon_chain/src/lib.rs

@@ -56,10 +56,10 @@ pub mod validator_monitor;
 pub mod validator_pubkey_cache;
 
 pub use self::beacon_chain::{
-    AttestationProcessingOutcome, AvailabilityProcessingStatus, BeaconChain, BeaconChainTypes,
+    AttestationProcessingOutcome, AvailabilityProcessingStatus, BeaconBlockResponse,
-    BeaconStore, ChainSegmentResult, ForkChoiceError, OverrideForkchoiceUpdate,
+    BeaconBlockResponseType, BeaconChain, BeaconChainTypes, BeaconStore, ChainSegmentResult,
-    ProduceBlockVerification, StateSkipConfig, WhenSlotSkipped,
+    ForkChoiceError, OverrideForkchoiceUpdate, ProduceBlockVerification, StateSkipConfig,
-    INVALID_FINALIZED_MERGE_TRANSITION_BLOCK_SHUTDOWN_REASON,
+    WhenSlotSkipped, INVALID_FINALIZED_MERGE_TRANSITION_BLOCK_SHUTDOWN_REASON,
     INVALID_JUSTIFIED_PAYLOAD_SHUTDOWN_REASON,
 };
 pub use self::beacon_snapshot::BeaconSnapshot;

beacon_node/beacon_chain/src/test_utils.rs

@@ -1,6 +1,7 @@
 use crate::block_verification_types::{AsBlock, RpcBlock};
 use crate::observed_operations::ObservationOutcome;
 pub use crate::persisted_beacon_chain::PersistedBeaconChain;
+use crate::BeaconBlockResponseType;
 pub use crate::{
     beacon_chain::{BEACON_CHAIN_DB_KEY, ETH1_CACHE_DB_KEY, FORK_CHOICE_DB_KEY, OP_POOL_DB_KEY},
     migrate::MigratorConfig,
@@ -60,6 +61,7 @@ use store::{config::StoreConfig, HotColdDB, ItemStore, LevelDB, MemoryStore};
 use task_executor::TaskExecutor;
 use task_executor::{test_utils::TestRuntime, ShutdownReason};
 use tree_hash::TreeHash;
+use types::payload::BlockProductionVersion;
 use types::sync_selection_proof::SyncSelectionProof;
 pub use types::test_utils::generate_deterministic_keypairs;
 use types::test_utils::TestRandom;
@@ -878,7 +880,7 @@ where
 
         let randao_reveal = self.sign_randao_reveal(&state, proposer_index, slot);
 
-        let (block, state, maybe_blob_sidecars) = self
+        let BeaconBlockResponseType::Full(block_response) = self
             .chain
             .produce_block_on_state(
                 state,
@@ -887,14 +889,18 @@ where
                 randao_reveal,
                 Some(graffiti),
                 ProduceBlockVerification::VerifyRandao,
+                BlockProductionVersion::FullV2,
             )
             .await
-            .unwrap();
+            .unwrap()
+        else {
+            panic!("Should always be a full payload response");
+        };
 
-        let signed_block = block.sign(
+        let signed_block = block_response.block.sign(
             &self.validator_keypairs[proposer_index].sk,
-            &state.fork(),
+            &block_response.state.fork(),
-            state.genesis_validators_root(),
+            block_response.state.genesis_validators_root(),
             &self.spec,
         );
 
@@ -905,11 +911,13 @@ where
             | SignedBeaconBlock::Capella(_) => (signed_block, None),
             SignedBeaconBlock::Deneb(_) => (
                 signed_block,
-                maybe_blob_sidecars.map(|blobs| self.sign_blobs(blobs, &state, proposer_index)),
+                block_response
+                    .maybe_side_car
+                    .map(|blobs| self.sign_blobs(blobs, &block_response.state, proposer_index)),
             ),
         };
 
-        (block_contents, state)
+        (block_contents, block_response.state)
     }
 
     /// Useful for the `per_block_processing` tests. Creates a block, and returns the state after
@@ -938,7 +946,7 @@ where
 
         let pre_state = state.clone();
 
-        let (block, state, maybe_blob_sidecars) = self
+        let BeaconBlockResponseType::Full(block_response) = self
             .chain
             .produce_block_on_state(
                 state,
@@ -947,14 +955,18 @@ where
                 randao_reveal,
                 Some(graffiti),
                 ProduceBlockVerification::VerifyRandao,
+                BlockProductionVersion::FullV2,
             )
             .await
-            .unwrap();
+            .unwrap()
+        else {
+            panic!("Should always be a full payload response");
+        };
 
-        let signed_block = block.sign(
+        let signed_block = block_response.block.sign(
             &self.validator_keypairs[proposer_index].sk,
-            &state.fork(),
+            &block_response.state.fork(),
-            state.genesis_validators_root(),
+            block_response.state.genesis_validators_root(),
             &self.spec,
         );
 
@@ -964,14 +976,14 @@ where
             | SignedBeaconBlock::Merge(_)
             | SignedBeaconBlock::Capella(_) => (signed_block, None),
             SignedBeaconBlock::Deneb(_) => {
-                if let Some(blobs) = maybe_blob_sidecars {
+                if let Some(blobs) = block_response.maybe_side_car {
                     let signed_blobs: SignedSidecarList<E, BlobSidecar<E>> = Vec::from(blobs)
                         .into_iter()
                         .map(|blob| {
                             blob.sign(
                                 &self.validator_keypairs[proposer_index].sk,
-                                &state.fork(),
+                                &block_response.state.fork(),
-                                state.genesis_validators_root(),
+                                block_response.state.genesis_validators_root(),
                                 &self.spec,
                             )
                         })
@@ -990,7 +1002,6 @@ where
                 }
             }
         };
-
         (block_contents, pre_state)
     }
 

beacon_node/execution_layer/src/engine_api.rs

@@ -466,6 +466,11 @@ impl<T: EthSpec> From<GetPayloadResponse<T>>
     }
 }
 
+pub enum GetPayloadResponseType<E: EthSpec> {
+    Full(GetPayloadResponse<E>),
+    Blinded(GetPayloadResponse<E>),
+}
+
 impl<T: EthSpec> GetPayloadResponse<T> {
     pub fn execution_payload_ref(&self) -> ExecutionPayloadRef<T> {
         self.to_ref().into()

beacon_node/execution_layer/src/lib.rs

@@ -42,13 +42,13 @@ use tokio_stream::wrappers::WatchStream;
 use tree_hash::TreeHash;
 use types::beacon_block_body::KzgCommitments;
 use types::builder_bid::BuilderBid;
+use types::payload::BlockProductionVersion;
 use types::sidecar::{BlobItems, Sidecar};
-use types::KzgProofs;
+use types::{AbstractExecPayload, ExecutionPayloadDeneb, KzgProofs};
 use types::{
-    AbstractExecPayload, BeaconStateError, BlindedPayload, BlockType, ChainSpec, Epoch,
+    BeaconStateError, BlindedPayload, ChainSpec, Epoch, ExecPayload, ExecutionPayloadCapella,
-    ExecPayload, ExecutionPayloadCapella, ExecutionPayloadDeneb, ExecutionPayloadMerge,
+    ExecutionPayloadMerge, FullPayload, ProposerPreparationData, PublicKeyBytes, Signature, Slot,
 };
-use types::{ProposerPreparationData, PublicKeyBytes, Signature, Slot};
 
 mod block_hash;
 mod engine_api;
@@ -87,9 +87,7 @@ pub enum ProvenancedPayload<P> {
     Builder(P),
 }
 
-impl<E: EthSpec, Payload: AbstractExecPayload<E>> TryFrom<BuilderBid<E>>
+impl<E: EthSpec> TryFrom<BuilderBid<E>> for ProvenancedPayload<BlockProposalContentsType<E>> {
-    for ProvenancedPayload<BlockProposalContents<E, Payload>>
-{
     type Error = Error;
 
     fn try_from(value: BuilderBid<E>) -> Result<Self, Error> {
@@ -112,12 +110,16 @@ impl<E: EthSpec, Payload: AbstractExecPayload<E>> TryFrom<BuilderBid<E>>
                     .map_err(|_| Error::InvalidPayloadConversion)?,
                 block_value: builder_bid.value,
                 kzg_commitments: builder_bid.blinded_blobs_bundle.commitments,
-                blobs: BlobItems::try_from_blob_roots(builder_bid.blinded_blobs_bundle.blob_roots)
+                blobs: BlobItems::<E>::try_from_blob_roots(
+                    builder_bid.blinded_blobs_bundle.blob_roots,
+                )
                 .map_err(Error::InvalidBlobConversion)?,
                 proofs: builder_bid.blinded_blobs_bundle.proofs,
             },
         };
-        Ok(ProvenancedPayload::Builder(block_proposal_contents))
+        Ok(ProvenancedPayload::Builder(
+            BlockProposalContentsType::Blinded(block_proposal_contents),
+        ))
     }
 }
 
@@ -145,6 +147,7 @@ pub enum Error {
     InvalidPayloadConversion,
     InvalidBlobConversion(String),
     BeaconStateError(BeaconStateError),
+    PayloadTypeMismatch,
 }
 
 impl From<BeaconStateError> for Error {
@@ -159,6 +162,11 @@ impl From<ApiError> for Error {
     }
 }
 
+pub enum BlockProposalContentsType<E: EthSpec> {
+    Full(BlockProposalContents<E, FullPayload<E>>),
+    Blinded(BlockProposalContents<E, BlindedPayload<E>>),
+}
+
 pub enum BlockProposalContents<T: EthSpec, Payload: AbstractExecPayload<T>> {
     Payload {
         payload: Payload,
@@ -173,6 +181,22 @@ pub enum BlockProposalContents<T: EthSpec, Payload: AbstractExecPayload<T>> {
     },
 }
 
+impl<T: EthSpec> From<BlockProposalContents<T, FullPayload<T>>>
+    for BlockProposalContents<T, BlindedPayload<T>>
+{
+    fn from(item: BlockProposalContents<T, FullPayload<T>>) -> Self {
+        let block_value = item.block_value().to_owned();
+
+        let blinded_payload: BlockProposalContents<T, BlindedPayload<T>> =
+            BlockProposalContents::Payload {
+                payload: item.to_payload().execution_payload().into(),
+                block_value,
+            };
+
+        blinded_payload
+    }
+}
+
 impl<E: EthSpec, Payload: AbstractExecPayload<E>> TryFrom<GetPayloadResponse<E>>
     for BlockProposalContents<E, Payload>
 {
@@ -197,6 +221,17 @@ impl<E: EthSpec, Payload: AbstractExecPayload<E>> TryFrom<GetPayloadResponse<E>>
     }
 }
 
+impl<E: EthSpec> TryFrom<GetPayloadResponseType<E>> for BlockProposalContentsType<E> {
+    type Error = Error;
+
+    fn try_from(response_type: GetPayloadResponseType<E>) -> Result<Self, Error> {
+        match response_type {
+            GetPayloadResponseType::Full(response) => Ok(Self::Full(response.try_into()?)),
+            GetPayloadResponseType::Blinded(response) => Ok(Self::Blinded(response.try_into()?)),
+        }
+    }
+}
+
 #[allow(clippy::type_complexity)]
 impl<T: EthSpec, Payload: AbstractExecPayload<T>> BlockProposalContents<T, Payload> {
     pub fn deconstruct(
@@ -206,19 +241,26 @@ impl<T: EthSpec, Payload: AbstractExecPayload<T>> BlockProposalContents<T, Paylo
         Option<KzgCommitments<T>>,
         Option<<Payload::Sidecar as Sidecar<T>>::BlobItems>,
         Option<KzgProofs<T>>,
+        Uint256,
     ) {
         match self {
             Self::Payload {
                 payload,
-                block_value: _,
+                block_value,
-            } => (payload, None, None, None),
+            } => (payload, None, None, None, block_value),
             Self::PayloadAndBlobs {
                 payload,
-                block_value: _,
+                block_value,
                 kzg_commitments,
                 blobs,
                 proofs,
-            } => (payload, Some(kzg_commitments), Some(blobs), Some(proofs)),
+            } => (
+                payload,
+                Some(kzg_commitments),
+                Some(blobs),
+                Some(proofs),
+                block_value,
+            ),
         }
     }
 
@@ -795,7 +837,8 @@ impl<T: EthSpec> ExecutionLayer<T> {
     ///
     /// The result will be returned from the first node that returns successfully. No more nodes
     /// will be contacted.
-    pub async fn get_payload<Payload: AbstractExecPayload<T>>(
+    #[allow(clippy::too_many_arguments)]
+    pub async fn get_payload(
         &self,
         parent_hash: ExecutionBlockHash,
         payload_attributes: &PayloadAttributes,
@@ -803,14 +846,11 @@ impl<T: EthSpec> ExecutionLayer<T> {
         builder_params: BuilderParams,
         current_fork: ForkName,
         spec: &ChainSpec,
-    ) -> Result<BlockProposalContents<T, Payload>, Error> {
+        block_production_version: BlockProductionVersion,
-        let payload_result = match Payload::block_type() {
+    ) -> Result<BlockProposalContentsType<T>, Error> {
-            BlockType::Blinded => {
+        let payload_result_type = match block_production_version {
-                let _timer = metrics::start_timer_vec(
+            BlockProductionVersion::V3 => match self
-                    &metrics::EXECUTION_LAYER_REQUEST_TIMES,
+                .determine_and_fetch_payload(
-                    &[metrics::GET_BLINDED_PAYLOAD],
-                );
-                self.get_blinded_payload(
                     parent_hash,
                     payload_attributes,
                     forkchoice_update_params,
@@ -819,27 +859,51 @@ impl<T: EthSpec> ExecutionLayer<T> {
                     spec,
                 )
                 .await
+            {
+                Ok(payload) => payload,
+                Err(e) => {
+                    metrics::inc_counter_vec(
+                        &metrics::EXECUTION_LAYER_GET_PAYLOAD_OUTCOME,
+                        &[metrics::FAILURE],
+                    );
+                    return Err(e);
                 }
-            BlockType::Full => {
+            },
+            BlockProductionVersion::BlindedV2 => {
                 let _timer = metrics::start_timer_vec(
                     &metrics::EXECUTION_LAYER_REQUEST_TIMES,
-                    &[metrics::GET_PAYLOAD],
+                    &[metrics::GET_BLINDED_PAYLOAD],
                 );
-                self.get_full_payload(
+                self.determine_and_fetch_payload(
+                    parent_hash,
+                    payload_attributes,
+                    forkchoice_update_params,
+                    builder_params,
+                    current_fork,
+                    spec,
+                )
+                .await?
+            }
+            BlockProductionVersion::FullV2 => self
+                .get_full_payload_with(
                     parent_hash,
                     payload_attributes,
                     forkchoice_update_params,
                     current_fork,
+                    noop,
                 )
                 .await
-                .and_then(GetPayloadResponse::try_into)
+                .and_then(GetPayloadResponseType::try_into)
-                .map(ProvenancedPayload::Local)
+                .map(ProvenancedPayload::Local)?,
-            }
         };
 
-        // Track some metrics and return the result.
+        let block_proposal_content_type = match payload_result_type {
-        match payload_result {
+            ProvenancedPayload::Local(local_payload) => local_payload,
-            Ok(ProvenancedPayload::Local(block_proposal_contents)) => {
+            ProvenancedPayload::Builder(builder_payload) => builder_payload,
+        };
+
+        match block_proposal_content_type {
+            BlockProposalContentsType::Full(block_proposal_contents) => {
                 metrics::inc_counter_vec(
                     &metrics::EXECUTION_LAYER_GET_PAYLOAD_OUTCOME,
                     &[metrics::SUCCESS],
@@ -848,9 +912,15 @@ impl<T: EthSpec> ExecutionLayer<T> {
                     &metrics::EXECUTION_LAYER_GET_PAYLOAD_SOURCE,
                     &[metrics::LOCAL],
                 );
-                Ok(block_proposal_contents)
+                if matches!(block_production_version, BlockProductionVersion::BlindedV2) {
+                    Ok(BlockProposalContentsType::Blinded(
+                        block_proposal_contents.into(),
+                    ))
+                } else {
+                    Ok(BlockProposalContentsType::Full(block_proposal_contents))
                 }
-            Ok(ProvenancedPayload::Builder(block_proposal_contents)) => {
+            }
+            BlockProposalContentsType::Blinded(block_proposal_contents) => {
                 metrics::inc_counter_vec(
                     &metrics::EXECUTION_LAYER_GET_PAYLOAD_OUTCOME,
                     &[metrics::SUCCESS],
@@ -859,19 +929,12 @@ impl<T: EthSpec> ExecutionLayer<T> {
                     &metrics::EXECUTION_LAYER_GET_PAYLOAD_SOURCE,
                     &[metrics::BUILDER],
                 );
-                Ok(block_proposal_contents)
+                Ok(BlockProposalContentsType::Blinded(block_proposal_contents))
-            }
-            Err(e) => {
-                metrics::inc_counter_vec(
-                    &metrics::EXECUTION_LAYER_GET_PAYLOAD_OUTCOME,
-                    &[metrics::FAILURE],
-                );
-                Err(e)
             }
         }
     }
 
-    async fn get_blinded_payload<Payload: AbstractExecPayload<T>>(
+    async fn determine_and_fetch_payload(
         &self,
         parent_hash: ExecutionBlockHash,
         payload_attributes: &PayloadAttributes,
@@ -879,11 +942,10 @@ impl<T: EthSpec> ExecutionLayer<T> {
         builder_params: BuilderParams,
         current_fork: ForkName,
         spec: &ChainSpec,
-    ) -> Result<ProvenancedPayload<BlockProposalContents<T, Payload>>, Error> {
+    ) -> Result<ProvenancedPayload<BlockProposalContentsType<T>>, Error> {
         if let Some(builder) = self.builder() {
             let slot = builder_params.slot;
             let pubkey = builder_params.pubkey;
-
             match builder_params.chain_health {
                 ChainHealth::Healthy => {
                     info!(
@@ -895,7 +957,7 @@ impl<T: EthSpec> ExecutionLayer<T> {
                     );
 
                     // Wait for the builder *and* local EL to produce a payload (or return an error).
-                    let ((relay_result, relay_duration), (local_result, local_duration)) = tokio::join!(
+                    let ((relay_result, relay_duration), (local_result_type, local_duration)) = tokio::join!(
                         timed_future(metrics::GET_BLINDED_PAYLOAD_BUILDER, async {
                             builder
                                 .get_builder_header::<T>(slot, parent_hash, &pubkey)
@@ -912,6 +974,11 @@ impl<T: EthSpec> ExecutionLayer<T> {
                         })
                     );
 
+                    let local_result = match local_result_type? {
+                        GetPayloadResponseType::Full(payload) => Ok(payload),
+                        GetPayloadResponseType::Blinded(_) => Err(Error::PayloadTypeMismatch),
+                    };
+
                     info!(
                         self.log(),
                         "Requested blinded execution payload";
@@ -939,7 +1006,9 @@ impl<T: EthSpec> ExecutionLayer<T> {
                                 "local_block_hash" => ?local.block_hash(),
                                 "parent_hash" => ?parent_hash,
                             );
-                            Ok(ProvenancedPayload::Local(local.try_into()?))
+                            Ok(ProvenancedPayload::Local(BlockProposalContentsType::Full(
+                                local.try_into()?,
+                            )))
                         }
                         (Ok(None), Ok(local)) => {
                             info!(
@@ -949,7 +1018,9 @@ impl<T: EthSpec> ExecutionLayer<T> {
                                 "local_block_hash" => ?local.block_hash(),
                                 "parent_hash" => ?parent_hash,
                             );
-                            Ok(ProvenancedPayload::Local(local.try_into()?))
+                            Ok(ProvenancedPayload::Local(BlockProposalContentsType::Full(
+                                local.try_into()?,
+                            )))
                         }
                         (Ok(Some(relay)), Ok(local)) => {
                             let header = &relay.data.message.header();
@@ -973,7 +1044,9 @@ impl<T: EthSpec> ExecutionLayer<T> {
                                         "local_block_value" => %local_value,
                                         "relay_value" => %relay_value
                                     );
-                                    return Ok(ProvenancedPayload::Local(local.try_into()?));
+                                    return Ok(ProvenancedPayload::Local(
+                                        BlockProposalContentsType::Full(local.try_into()?),
+                                    ));
                                 } else if local.should_override_builder().unwrap_or(false) {
                                     let percentage_difference =
                                         percentage_difference_u256(local_value, *relay_value);
@@ -989,7 +1062,9 @@ impl<T: EthSpec> ExecutionLayer<T> {
                                             "local_block_value" => %local_value,
                                             "relay_value" => %relay_value
                                         );
-                                        return Ok(ProvenancedPayload::Local(local.try_into()?));
+                                        return Ok(ProvenancedPayload::Local(
+                                            BlockProposalContentsType::Full(local.try_into()?),
+                                        ));
                                     }
                                 } else {
                                     info!(
@@ -1020,7 +1095,9 @@ impl<T: EthSpec> ExecutionLayer<T> {
                                         "relay_block_hash" => ?header.block_hash(),
                                         "parent_hash" => ?parent_hash,
                                     );
-                                    Ok(ProvenancedPayload::Local(local.try_into()?))
+                                    Ok(ProvenancedPayload::Local(BlockProposalContentsType::Full(
+                                        local.try_into()?,
+                                    )))
                                 }
                                 Err(reason) => {
                                     metrics::inc_counter_vec(
@@ -1035,7 +1112,9 @@ impl<T: EthSpec> ExecutionLayer<T> {
                                         "relay_block_hash" => ?header.block_hash(),
                                         "parent_hash" => ?parent_hash,
                                     );
-                                    Ok(ProvenancedPayload::Local(local.try_into()?))
+                                    Ok(ProvenancedPayload::Local(BlockProposalContentsType::Full(
+                                        local.try_into()?,
+                                    )))
                                 }
                             }
                         }
@@ -1132,28 +1211,10 @@ impl<T: EthSpec> ExecutionLayer<T> {
             current_fork,
         )
         .await
-        .and_then(GetPayloadResponse::try_into)
+        .and_then(GetPayloadResponseType::try_into)
         .map(ProvenancedPayload::Local)
     }
 
-    /// Get a full payload without caching its result in the execution layer's payload cache.
-    async fn get_full_payload(
-        &self,
-        parent_hash: ExecutionBlockHash,
-        payload_attributes: &PayloadAttributes,
-        forkchoice_update_params: ForkchoiceUpdateParameters,
-        current_fork: ForkName,
-    ) -> Result<GetPayloadResponse<T>, Error> {
-        self.get_full_payload_with(
-            parent_hash,
-            payload_attributes,
-            forkchoice_update_params,
-            current_fork,
-            noop,
-        )
-        .await
-    }
-
     /// Get a full payload and cache its result in the execution layer's payload cache.
     async fn get_full_payload_caching(
         &self,
@@ -1161,7 +1222,7 @@ impl<T: EthSpec> ExecutionLayer<T> {
         payload_attributes: &PayloadAttributes,
         forkchoice_update_params: ForkchoiceUpdateParameters,
         current_fork: ForkName,
-    ) -> Result<GetPayloadResponse<T>, Error> {
+    ) -> Result<GetPayloadResponseType<T>, Error> {
         self.get_full_payload_with(
             parent_hash,
             payload_attributes,
@@ -1182,7 +1243,7 @@ impl<T: EthSpec> ExecutionLayer<T> {
             &ExecutionLayer<T>,
             PayloadContentsRefTuple<T>,
         ) -> Option<FullPayloadContents<T>>,
-    ) -> Result<GetPayloadResponse<T>, Error> {
+    ) -> Result<GetPayloadResponseType<T>, Error> {
         self.engine()
             .request(move |engine| async move {
                 let payload_id = if let Some(id) = engine
@@ -1244,6 +1305,10 @@ impl<T: EthSpec> ExecutionLayer<T> {
                         "timestamp" => payload_attributes.timestamp(),
                         "parent_hash" => ?parent_hash,
                     );
+                    let _timer = metrics::start_timer_vec(
+                        &metrics::EXECUTION_LAYER_REQUEST_TIMES,
+                        &[metrics::GET_PAYLOAD],
+                    );
                     engine.api.get_payload::<T>(current_fork, payload_id).await
                 }.await?;
 
@@ -1268,7 +1333,7 @@ impl<T: EthSpec> ExecutionLayer<T> {
                     );
                 }
 
-                Ok(payload_response)
+                Ok(GetPayloadResponseType::Full(payload_response))
             })
             .await
             .map_err(Box::new)

beacon_node/execution_layer/src/test_utils/mock_builder.rs

@@ -508,11 +508,7 @@ pub fn serve<E: EthSpec>(
                     finalized_hash: Some(finalized_execution_hash),
                 };
 
-                let (payload, _block_value, maybe_blobs_bundle): (
+                let payload_response_type = builder
-                    ExecutionPayload<E>,
-                    Uint256,
-                    Option<BlobsBundle<E>>,
-                ) = builder
                     .el
                     .get_full_payload_caching(
                         head_execution_hash,
@@ -521,10 +517,17 @@ pub fn serve<E: EthSpec>(
                         fork,
                     )
                     .await
-                    .map_err(|_| reject("couldn't get payload"))?
+                    .map_err(|_| reject("couldn't get payload"))?;
-                    .into();
 
-                let mut message = match fork {
+                let mut message = match payload_response_type {
+                    crate::GetPayloadResponseType::Full(payload_response) => {
+                        let (payload, _block_value, maybe_blobs_bundle): (
+                            ExecutionPayload<E>,
+                            Uint256,
+                            Option<BlobsBundle<E>>,
+                        ) = payload_response.into();
+
+                        match fork {
                             ForkName::Deneb => BuilderBid::Deneb(BuilderBidDeneb {
                                 header: payload
                                     .as_deneb()
@@ -552,7 +555,50 @@ pub fn serve<E: EthSpec>(
                                 value: Uint256::from(DEFAULT_BUILDER_PAYLOAD_VALUE_WEI),
                                 pubkey: builder.builder_sk.public_key().compress(),
                             }),
-                    ForkName::Base | ForkName::Altair => return Err(reject("invalid fork")),
+                            ForkName::Base | ForkName::Altair => {
+                                return Err(reject("invalid fork"))
+                            }
+                        }
+                    }
+                    crate::GetPayloadResponseType::Blinded(payload_response) => {
+                        let (payload, _block_value, maybe_blobs_bundle): (
+                            ExecutionPayload<E>,
+                            Uint256,
+                            Option<BlobsBundle<E>>,
+                        ) = payload_response.into();
+                        match fork {
+                            ForkName::Deneb => BuilderBid::Deneb(BuilderBidDeneb {
+                                header: payload
+                                    .as_deneb()
+                                    .map_err(|_| reject("incorrect payload variant"))?
+                                    .into(),
+                                blinded_blobs_bundle: maybe_blobs_bundle
+                                    .map(Into::into)
+                                    .unwrap_or_default(),
+                                value: Uint256::from(DEFAULT_BUILDER_PAYLOAD_VALUE_WEI),
+                                pubkey: builder.builder_sk.public_key().compress(),
+                            }),
+                            ForkName::Capella => BuilderBid::Capella(BuilderBidCapella {
+                                header: payload
+                                    .as_capella()
+                                    .map_err(|_| reject("incorrect payload variant"))?
+                                    .into(),
+                                value: Uint256::from(DEFAULT_BUILDER_PAYLOAD_VALUE_WEI),
+                                pubkey: builder.builder_sk.public_key().compress(),
+                            }),
+                            ForkName::Merge => BuilderBid::Merge(BuilderBidMerge {
+                                header: payload
+                                    .as_merge()
+                                    .map_err(|_| reject("incorrect payload variant"))?
+                                    .into(),
+                                value: Uint256::from(DEFAULT_BUILDER_PAYLOAD_VALUE_WEI),
+                                pubkey: builder.builder_sk.public_key().compress(),
+                            }),
+                            ForkName::Base | ForkName::Altair => {
+                                return Err(reject("invalid fork"))
+                            }
+                        }
+                    }
                 };
 
                 message.set_gas_limit(cached_data.gas_limit);

beacon_node/execution_layer/src/test_utils/mock_execution_layer.rs

@@ -5,12 +5,12 @@ use crate::{
     },
     Config, *,
 };
+use keccak_hash::H256;
 use kzg::Kzg;
 use sensitive_url::SensitiveUrl;
 use task_executor::TaskExecutor;
 use tempfile::NamedTempFile;
-use tree_hash::TreeHash;
+use types::{Address, ChainSpec, Epoch, EthSpec, Hash256, MainnetEthSpec};
-use types::{Address, ChainSpec, Epoch, EthSpec, FullPayload, Hash256, MainnetEthSpec};
 
 pub struct MockExecutionLayer<T: EthSpec> {
     pub server: MockServer<T>,
@@ -133,20 +133,25 @@ impl<T: EthSpec> MockExecutionLayer<T> {
         let suggested_fee_recipient = self.el.get_suggested_fee_recipient(validator_index).await;
         let payload_attributes =
             PayloadAttributes::new(timestamp, prev_randao, suggested_fee_recipient, None, None);
-        let payload: ExecutionPayload<T> = self
+
+        let block_proposal_content_type = self
             .el
-            .get_payload::<FullPayload<T>>(
+            .get_payload(
                 parent_hash,
                 &payload_attributes,
                 forkchoice_update_params,
                 builder_params,
                 ForkName::Merge,
                 &self.spec,
+                BlockProductionVersion::FullV2,
             )
             .await
-            .unwrap()
+            .unwrap();
-            .to_payload()
+
-            .into();
+        let payload: ExecutionPayload<T> = match block_proposal_content_type {
+            BlockProposalContentsType::Full(block) => block.to_payload().into(),
+            BlockProposalContentsType::Blinded(_) => panic!("Should always be a full payload"),
+        };
 
         let block_hash = payload.block_hash();
         assert_eq!(payload.parent_hash(), parent_hash);
@@ -167,20 +172,64 @@ impl<T: EthSpec> MockExecutionLayer<T> {
         let suggested_fee_recipient = self.el.get_suggested_fee_recipient(validator_index).await;
         let payload_attributes =
             PayloadAttributes::new(timestamp, prev_randao, suggested_fee_recipient, None, None);
-        let payload_header = self
+
+        let block_proposal_content_type = self
             .el
-            .get_payload::<BlindedPayload<T>>(
+            .get_payload(
                 parent_hash,
                 &payload_attributes,
                 forkchoice_update_params,
                 builder_params,
                 ForkName::Merge,
                 &self.spec,
+                BlockProductionVersion::BlindedV2,
             )
             .await
-            .unwrap()
+            .unwrap();
-            .to_payload();
 
+        match block_proposal_content_type {
+            BlockProposalContentsType::Full(block) => {
+                let payload_header = block.to_payload();
+                self.assert_valid_execution_payload_on_head(
+                    payload,
+                    payload_header,
+                    block_hash,
+                    parent_hash,
+                    block_number,
+                    timestamp,
+                    prev_randao,
+                )
+                .await;
+            }
+            BlockProposalContentsType::Blinded(block) => {
+                let payload_header = block.to_payload();
+                self.assert_valid_execution_payload_on_head(
+                    payload,
+                    payload_header,
+                    block_hash,
+                    parent_hash,
+                    block_number,
+                    timestamp,
+                    prev_randao,
+                )
+                .await;
+            }
+        };
+
+        self
+    }
+
+    #[allow(clippy::too_many_arguments)]
+    pub async fn assert_valid_execution_payload_on_head<Payload: AbstractExecPayload<T>>(
+        &self,
+        payload: ExecutionPayload<T>,
+        payload_header: Payload,
+        block_hash: ExecutionBlockHash,
+        parent_hash: ExecutionBlockHash,
+        block_number: u64,
+        timestamp: u64,
+        prev_randao: H256,
+    ) {
         assert_eq!(payload_header.block_hash(), block_hash);
         assert_eq!(payload_header.parent_hash(), parent_hash);
         assert_eq!(payload_header.block_number(), block_number);
@@ -224,8 +273,6 @@ impl<T: EthSpec> MockExecutionLayer<T> {
         assert_eq!(head_execution_block.block_number(), block_number);
         assert_eq!(head_execution_block.block_hash(), block_hash);
         assert_eq!(head_execution_block.parent_hash(), parent_hash);
-
-        self
     }
 
     pub fn move_to_block_prior_to_terminal_block(self) -> Self {

beacon_node/http_api/src/build_block_contents.rs

@@ -1,46 +1,15 @@
 use beacon_chain::BlockProductionError;
 use eth2::types::{BeaconBlockAndBlobSidecars, BlindedBeaconBlockAndBlobSidecars, BlockContents};
-use types::{
+use types::{AbstractExecPayload, BeaconBlock, EthSpec, ForkName, SidecarList};
-    BeaconBlock, BlindedBlobSidecarList, BlindedPayload, BlobSidecarList, EthSpec, ForkName,
-    FullPayload,
-};
-
 type Error = warp::reject::Rejection;
-type FullBlockContents<E> = BlockContents<E, FullPayload<E>>;
-type BlindedBlockContents<E> = BlockContents<E, BlindedPayload<E>>;
 
-pub fn build_block_contents<E: EthSpec>(
+pub fn build_block_contents<E: EthSpec, Payload: AbstractExecPayload<E>>(
     fork_name: ForkName,
-    block: BeaconBlock<E, FullPayload<E>>,
+    block: BeaconBlock<E, Payload>,
-    maybe_blobs: Option<BlobSidecarList<E>>,
+    maybe_blobs: Option<SidecarList<E, <Payload as AbstractExecPayload<E>>::Sidecar>>,
-) -> Result<FullBlockContents<E>, Error> {
+) -> Result<BlockContents<E, Payload>, Error> {
-    match fork_name {
+    match Payload::block_type() {
-        ForkName::Base | ForkName::Altair | ForkName::Merge | ForkName::Capella => {
+        types::BlockType::Blinded => match fork_name {
-            Ok(BlockContents::Block(block))
-        }
-        ForkName::Deneb => {
-            if let Some(blob_sidecars) = maybe_blobs {
-                let block_and_blobs = BeaconBlockAndBlobSidecars {
-                    block,
-                    blob_sidecars,
-                };
-
-                Ok(BlockContents::BlockAndBlobSidecars(block_and_blobs))
-            } else {
-                Err(warp_utils::reject::block_production_error(
-                    BlockProductionError::MissingBlobs,
-                ))
-            }
-        }
-    }
-}
-
-pub fn build_blinded_block_contents<E: EthSpec>(
-    fork_name: ForkName,
-    block: BeaconBlock<E, BlindedPayload<E>>,
-    maybe_blobs: Option<BlindedBlobSidecarList<E>>,
-) -> Result<BlindedBlockContents<E>, Error> {
-    match fork_name {
             ForkName::Base | ForkName::Altair | ForkName::Merge | ForkName::Capella => {
                 Ok(BlockContents::Block(block))
             }
@@ -58,5 +27,25 @@ pub fn build_blinded_block_contents<E: EthSpec>(
                     ))
                 }
             }
+        },
+        types::BlockType::Full => match fork_name {
+            ForkName::Base | ForkName::Altair | ForkName::Merge | ForkName::Capella => {
+                Ok(BlockContents::Block(block))
+            }
+            ForkName::Deneb => {
+                if let Some(blob_sidecars) = maybe_blobs {
+                    let block_and_blobs = BeaconBlockAndBlobSidecars {
+                        block,
+                        blob_sidecars,
+                    };
+
+                    Ok(BlockContents::BlockAndBlobSidecars(block_and_blobs))
+                } else {
+                    Err(warp_utils::reject::block_production_error(
+                        BlockProductionError::MissingBlobs,
+                    ))
+                }
+            }
+        },
     }
 }

beacon_node/http_api/src/lib.rs

@@ -14,6 +14,7 @@ mod build_block_contents;
 mod builder_states;
 mod database;
 mod metrics;
+mod produce_block;
 mod proposer_duties;
 mod publish_blocks;
 mod standard_block_rewards;
@@ -27,10 +28,11 @@ mod validator;
 mod validator_inclusion;
 mod version;
 
+use crate::produce_block::{produce_blinded_block_v2, produce_block_v2, produce_block_v3};
 use beacon_chain::{
     attestation_verification::VerifiedAttestation, observed_operations::ObservationOutcome,
     validator_monitor::timestamp_now, AttestationError as AttnError, BeaconChain, BeaconChainError,
-    BeaconChainTypes, ProduceBlockVerification, WhenSlotSkipped,
+    BeaconChainTypes, WhenSlotSkipped,
 };
 use beacon_processor::BeaconProcessorSend;
 pub use block_id::BlockId;
@@ -39,8 +41,7 @@ use bytes::Bytes;
 use directory::DEFAULT_ROOT_DIR;
 use eth2::types::{
     self as api_types, BroadcastValidation, EndpointVersion, ForkChoice, ForkChoiceNode,
-    SignedBlindedBlockContents, SignedBlockContents, SkipRandaoVerification, ValidatorId,
+    SignedBlindedBlockContents, SignedBlockContents, ValidatorId, ValidatorStatus,
-    ValidatorStatus,
 };
 use lighthouse_network::{types::SyncState, EnrExt, NetworkGlobals, PeerId, PubsubMessage};
 use lighthouse_version::version_with_platform;
@@ -75,7 +76,7 @@ use tokio_stream::{
 };
 use types::{
     Attestation, AttestationData, AttestationShufflingId, AttesterSlashing, BeaconStateError,
-    BlindedPayload, CommitteeCache, ConfigAndPreset, Epoch, EthSpec, ForkName, FullPayload,
+    BlindedPayload, CommitteeCache, ConfigAndPreset, Epoch, EthSpec, ForkName,
     ProposerPreparationData, ProposerSlashing, RelativeEpoch, SignedAggregateAndProof,
     SignedBlsToExecutionChange, SignedContributionAndProof, SignedValidatorRegistrationData,
     SignedVoluntaryExit, Slot, SyncCommitteeMessage, SyncContributionData,
@@ -83,7 +84,7 @@ use types::{
 use validator::pubkey_to_validator_index;
 use version::{
     add_consensus_version_header, execution_optimistic_finalized_fork_versioned_response,
-    fork_versioned_response, inconsistent_fork_rejection, unsupported_version_rejection, V1, V2,
+    inconsistent_fork_rejection, unsupported_version_rejection, V1, V2, V3,
 };
 use warp::http::StatusCode;
 use warp::sse::Event;
@@ -3052,17 +3053,17 @@ pub fn serve<T: BeaconChainTypes>(
             ))
         }))
         .and(warp::path::end())
+        .and(warp::header::optional::<api_types::Accept>("accept"))
         .and(not_while_syncing_filter.clone())
         .and(warp::query::<api_types::ValidatorBlocksQuery>())
-        .and(warp::header::optional::<api_types::Accept>("accept"))
         .and(task_spawner_filter.clone())
         .and(chain_filter.clone())
         .and(log_filter.clone())
         .then(
             |endpoint_version: EndpointVersion,
              slot: Slot,
-             query: api_types::ValidatorBlocksQuery,
              accept_header: Option<api_types::Accept>,
+             query: api_types::ValidatorBlocksQuery,
              task_spawner: TaskSpawner<T::EthSpec>,
              chain: Arc<BeaconChain<T>>,
              log: Logger| {
@@ -3073,60 +3074,10 @@ pub fn serve<T: BeaconChainTypes>(
                         "slot" => slot
                     );
 
-                    let randao_reveal = query.randao_reveal.decompress().map_err(|e| {
+                    if endpoint_version == V3 {
-                        warp_utils::reject::custom_bad_request(format!(
+                        produce_block_v3(endpoint_version, accept_header, chain, slot, query).await
-                            "randao reveal is not a valid BLS signature: {:?}",
-                            e
-                        ))
-                    })?;
-
-                    let randao_verification =
-                        if query.skip_randao_verification == SkipRandaoVerification::Yes {
-                            if !randao_reveal.is_infinity() {
-                                return Err(warp_utils::reject::custom_bad_request(
-                                    "randao_reveal must be point-at-infinity if verification is skipped"
-                                        .into(),
-                                ));
-                            }
-                            ProduceBlockVerification::NoVerification
                     } else {
-                            ProduceBlockVerification::VerifyRandao
+                        produce_block_v2(endpoint_version, accept_header, chain, slot, query).await
-                        };
-
-                    let (block, _, maybe_blobs) = chain
-                        .produce_block_with_verification::<FullPayload<T::EthSpec>>(
-                            randao_reveal,
-                            slot,
-                            query.graffiti.map(Into::into),
-                            randao_verification,
-                        )
-                        .await
-                        .map_err(warp_utils::reject::block_production_error)?;
-                    let fork_name = block
-                        .to_ref()
-                        .fork_name(&chain.spec)
-                        .map_err(inconsistent_fork_rejection)?;
-
-                    let block_contents =
-                        build_block_contents::build_block_contents(fork_name, block, maybe_blobs)?;
-
-                    match accept_header {
-                        Some(api_types::Accept::Ssz) => Response::builder()
-                            .status(200)
-                            .header("Content-Type", "application/octet-stream")
-                            .body(block_contents.as_ssz_bytes().into())
-                            .map(|res: Response<Bytes>| {
-                                add_consensus_version_header(res, fork_name)
-                            })
-                            .map_err(|e| {
-                                warp_utils::reject::custom_server_error(format!(
-                                    "failed to create response: {}",
-                                    e
-                                ))
-                            }),
-                        _ => fork_versioned_response(endpoint_version, fork_name, block_contents)
-                            .map(|response| warp::reply::json(&response).into_response())
-                            .map(|res| add_consensus_version_header(res, fork_name)),
                     }
                 })
             },
@@ -3154,65 +3105,8 @@ pub fn serve<T: BeaconChainTypes>(
              task_spawner: TaskSpawner<T::EthSpec>,
              chain: Arc<BeaconChain<T>>| {
                 task_spawner.spawn_async_with_rejection(Priority::P0, async move {
-                    let randao_reveal = query.randao_reveal.decompress().map_err(|e| {
+                    produce_blinded_block_v2(EndpointVersion(2), accept_header, chain, slot, query)
-                        warp_utils::reject::custom_bad_request(format!(
-                            "randao reveal is not a valid BLS signature: {:?}",
-                            e
-                        ))
-                    })?;
-
-                    let randao_verification =
-                        if query.skip_randao_verification == SkipRandaoVerification::Yes {
-                            if !randao_reveal.is_infinity() {
-                                return Err(warp_utils::reject::custom_bad_request(
-                                "randao_reveal must be point-at-infinity if verification is skipped"
-                                    .into()
-                            ));
-                            }
-                            ProduceBlockVerification::NoVerification
-                        } else {
-                            ProduceBlockVerification::VerifyRandao
-                        };
-
-                    let (block, _, maybe_blobs) = chain
-                        .produce_block_with_verification::<BlindedPayload<T::EthSpec>>(
-                            randao_reveal,
-                            slot,
-                            query.graffiti.map(Into::into),
-                            randao_verification,
-                        )
                         .await
-                        .map_err(warp_utils::reject::block_production_error)?;
-                    let fork_name = block
-                        .to_ref()
-                        .fork_name(&chain.spec)
-                        .map_err(inconsistent_fork_rejection)?;
-
-                    let block_contents = build_block_contents::build_blinded_block_contents(
-                        fork_name,
-                        block,
-                        maybe_blobs,
-                    )?;
-
-                    match accept_header {
-                        Some(api_types::Accept::Ssz) => Response::builder()
-                            .status(200)
-                            .header("Content-Type", "application/octet-stream")
-                            .body(block_contents.as_ssz_bytes().into())
-                            .map(|res: Response<Bytes>| {
-                                add_consensus_version_header(res, fork_name)
-                            })
-                            .map_err(|e| {
-                                warp_utils::reject::custom_server_error(format!(
-                                    "failed to create response: {}",
-                                    e
-                                ))
-                            }),
-                        // Pose as a V2 endpoint so we return the fork `version`.
-                        _ => fork_versioned_response(V2, fork_name, block_contents)
-                            .map(|response| warp::reply::json(&response).into_response())
-                            .map(|res| add_consensus_version_header(res, fork_name)),
-                    }
                 })
             },
         );
@@ -3740,7 +3634,6 @@ pub fn serve<T: BeaconChainTypes>(
                                 .as_ref()
                                 .ok_or(BeaconChainError::BuilderMissing)
                                 .map_err(warp_utils::reject::beacon_chain_error)?;
-
                             builder
                                 .post_builder_validators(&filtered_registration_data)
                                 .await

beacon_node/http_api/src/produce_block.rs

@@ -0,0 +1,231 @@
+use bytes::Bytes;
+use std::sync::Arc;
+use types::{payload::BlockProductionVersion, *};
+
+use beacon_chain::{
+    BeaconBlockResponse, BeaconBlockResponseType, BeaconChain, BeaconChainTypes,
+    ProduceBlockVerification,
+};
+use eth2::types::{self as api_types, EndpointVersion, SkipRandaoVerification};
+use ssz::Encode;
+use warp::{
+    hyper::{Body, Response},
+    Reply,
+};
+
+use crate::{
+    build_block_contents,
+    version::{
+        add_consensus_block_value_header, add_consensus_version_header,
+        add_execution_payload_blinded_header, add_execution_payload_value_header,
+        fork_versioned_response, inconsistent_fork_rejection,
+    },
+};
+
+pub fn get_randao_verification(
+    query: &api_types::ValidatorBlocksQuery,
+    randao_reveal_infinity: bool,
+) -> Result<ProduceBlockVerification, warp::Rejection> {
+    let randao_verification = if query.skip_randao_verification == SkipRandaoVerification::Yes {
+        if !randao_reveal_infinity {
+            return Err(warp_utils::reject::custom_bad_request(
+                "randao_reveal must be point-at-infinity if verification is skipped".into(),
+            ));
+        }
+        ProduceBlockVerification::NoVerification
+    } else {
+        ProduceBlockVerification::VerifyRandao
+    };
+
+    Ok(randao_verification)
+}
+
+pub async fn produce_block_v3<T: BeaconChainTypes>(
+    endpoint_version: EndpointVersion,
+    accept_header: Option<api_types::Accept>,
+    chain: Arc<BeaconChain<T>>,
+    slot: Slot,
+    query: api_types::ValidatorBlocksQuery,
+) -> Result<Response<Body>, warp::Rejection> {
+    let randao_reveal = query.randao_reveal.decompress().map_err(|e| {
+        warp_utils::reject::custom_bad_request(format!(
+            "randao reveal is not a valid BLS signature: {:?}",
+            e
+        ))
+    })?;
+
+    let randao_verification = get_randao_verification(&query, randao_reveal.is_infinity())?;
+
+    let block_response_type = chain
+        .produce_block_with_verification(
+            randao_reveal,
+            slot,
+            query.graffiti.map(Into::into),
+            randao_verification,
+            BlockProductionVersion::V3,
+        )
+        .await
+        .map_err(|e| {
+            warp_utils::reject::custom_bad_request(format!("failed to fetch a block: {:?}", e))
+        })?;
+
+    match block_response_type {
+        BeaconBlockResponseType::Full(block_response) => {
+            build_response_v3(chain, block_response, endpoint_version, accept_header)
+        }
+        BeaconBlockResponseType::Blinded(block_response) => {
+            build_response_v3(chain, block_response, endpoint_version, accept_header)
+        }
+    }
+}
+
+pub fn build_response_v3<T: BeaconChainTypes, E: EthSpec, Payload: AbstractExecPayload<E>>(
+    chain: Arc<BeaconChain<T>>,
+    block_response: BeaconBlockResponse<E, Payload>,
+    endpoint_version: EndpointVersion,
+    accept_header: Option<api_types::Accept>,
+) -> Result<Response<Body>, warp::Rejection> {
+    let fork_name = block_response
+        .block
+        .to_ref()
+        .fork_name(&chain.spec)
+        .map_err(inconsistent_fork_rejection)?;
+
+    let block_contents = build_block_contents::build_block_contents(
+        fork_name,
+        block_response.block,
+        block_response.maybe_side_car,
+    )?;
+
+    let execution_payload_blinded = Payload::block_type() == BlockType::Blinded;
+
+    match accept_header {
+        Some(api_types::Accept::Ssz) => Response::builder()
+            .status(200)
+            .header("Content-Type", "application/ssz")
+            .body(block_contents.as_ssz_bytes().into())
+            .map(|res: Response<Body>| add_consensus_version_header(res, fork_name))
+            .map(|res| add_execution_payload_blinded_header(res, execution_payload_blinded))
+            .map(|res: Response<Body>| {
+                add_execution_payload_value_header(res, block_response.execution_payload_value)
+            })
+            .map(|res| add_consensus_block_value_header(res, block_response.consensus_block_value))
+            .map_err(|e| -> warp::Rejection {
+                warp_utils::reject::custom_server_error(format!("failed to create response: {}", e))
+            }),
+        _ => fork_versioned_response(endpoint_version, fork_name, block_contents)
+            .map(|response| warp::reply::json(&response).into_response())
+            .map(|res| add_consensus_version_header(res, fork_name))
+            .map(|res| add_execution_payload_blinded_header(res, execution_payload_blinded))
+            .map(|res| {
+                add_execution_payload_value_header(res, block_response.execution_payload_value)
+            })
+            .map(|res| add_consensus_block_value_header(res, block_response.consensus_block_value)),
+    }
+}
+
+pub async fn produce_blinded_block_v2<T: BeaconChainTypes>(
+    endpoint_version: EndpointVersion,
+    accept_header: Option<api_types::Accept>,
+    chain: Arc<BeaconChain<T>>,
+    slot: Slot,
+    query: api_types::ValidatorBlocksQuery,
+) -> Result<Response<Body>, warp::Rejection> {
+    let randao_reveal = query.randao_reveal.decompress().map_err(|e| {
+        warp_utils::reject::custom_bad_request(format!(
+            "randao reveal is not a valid BLS signature: {:?}",
+            e
+        ))
+    })?;
+
+    let randao_verification = get_randao_verification(&query, randao_reveal.is_infinity())?;
+    let block_response_type = chain
+        .produce_block_with_verification(
+            randao_reveal,
+            slot,
+            query.graffiti.map(Into::into),
+            randao_verification,
+            BlockProductionVersion::BlindedV2,
+        )
+        .await
+        .map_err(warp_utils::reject::block_production_error)?;
+
+    match block_response_type {
+        BeaconBlockResponseType::Full(block_response) => {
+            build_response_v2(chain, block_response, endpoint_version, accept_header)
+        }
+        BeaconBlockResponseType::Blinded(block_response) => {
+            build_response_v2(chain, block_response, endpoint_version, accept_header)
+        }
+    }
+}
+
+pub async fn produce_block_v2<T: BeaconChainTypes>(
+    endpoint_version: EndpointVersion,
+    accept_header: Option<api_types::Accept>,
+    chain: Arc<BeaconChain<T>>,
+    slot: Slot,
+    query: api_types::ValidatorBlocksQuery,
+) -> Result<Response<Body>, warp::Rejection> {
+    let randao_reveal = query.randao_reveal.decompress().map_err(|e| {
+        warp_utils::reject::custom_bad_request(format!(
+            "randao reveal is not a valid BLS signature: {:?}",
+            e
+        ))
+    })?;
+
+    let randao_verification = get_randao_verification(&query, randao_reveal.is_infinity())?;
+
+    let block_response_type = chain
+        .produce_block_with_verification(
+            randao_reveal,
+            slot,
+            query.graffiti.map(Into::into),
+            randao_verification,
+            BlockProductionVersion::FullV2,
+        )
+        .await
+        .map_err(warp_utils::reject::block_production_error)?;
+
+    match block_response_type {
+        BeaconBlockResponseType::Full(block_response) => {
+            build_response_v2(chain, block_response, endpoint_version, accept_header)
+        }
+        BeaconBlockResponseType::Blinded(block_response) => {
+            build_response_v2(chain, block_response, endpoint_version, accept_header)
+        }
+    }
+}
+
+pub fn build_response_v2<T: BeaconChainTypes, E: EthSpec, Payload: AbstractExecPayload<E>>(
+    chain: Arc<BeaconChain<T>>,
+    block_response: BeaconBlockResponse<E, Payload>,
+    endpoint_version: EndpointVersion,
+    accept_header: Option<api_types::Accept>,
+) -> Result<Response<Body>, warp::Rejection> {
+    let fork_name = block_response
+        .block
+        .to_ref()
+        .fork_name(&chain.spec)
+        .map_err(inconsistent_fork_rejection)?;
+
+    let block_contents = build_block_contents::build_block_contents(
+        fork_name,
+        block_response.block,
+        block_response.maybe_side_car,
+    )?;
+
+    match accept_header {
+        Some(api_types::Accept::Ssz) => Response::builder()
+            .status(200)
+            .header("Content-Type", "application/octet-stream")
+            .body(block_contents.as_ssz_bytes().into())
+            .map(|res: Response<Bytes>| add_consensus_version_header(res, fork_name))
+            .map_err(|e| {
+                warp_utils::reject::custom_server_error(format!("failed to create response: {}", e))
+            }),
+        _ => fork_versioned_response(endpoint_version, fork_name, block_contents)
+            .map(|response| warp::reply::json(&response).into_response())
+            .map(|res| add_consensus_version_header(res, fork_name)),
+    }
+}

beacon_node/http_api/src/validator.rs

@@ -1,5 +1,5 @@
 use beacon_chain::{BeaconChain, BeaconChainError, BeaconChainTypes};
-use types::*;
+use types::{BeaconState, PublicKeyBytes};
 
 /// Uses the `chain.validator_pubkey_cache` to resolve a pubkey to a validator
 /// index and then ensures that the validator exists in the given `state`.

beacon_node/http_api/src/version.rs

@@ -1,12 +1,16 @@
 use crate::api_types::fork_versioned_response::ExecutionOptimisticFinalizedForkVersionedResponse;
 use crate::api_types::EndpointVersion;
-use eth2::CONSENSUS_VERSION_HEADER;
+use eth2::{
+    CONSENSUS_BLOCK_VALUE_HEADER, CONSENSUS_VERSION_HEADER, EXECUTION_PAYLOAD_BLINDED_HEADER,
+    EXECUTION_PAYLOAD_VALUE_HEADER,
+};
 use serde::Serialize;
-use types::{ForkName, ForkVersionedResponse, InconsistentFork};
+use types::{ForkName, ForkVersionedResponse, InconsistentFork, Uint256};
 use warp::reply::{self, Reply, Response};
 
 pub const V1: EndpointVersion = EndpointVersion(1);
 pub const V2: EndpointVersion = EndpointVersion(2);
+pub const V3: EndpointVersion = EndpointVersion(3);
 
 pub fn fork_versioned_response<T: Serialize>(
     endpoint_version: EndpointVersion,
@@ -15,7 +19,7 @@ pub fn fork_versioned_response<T: Serialize>(
 ) -> Result<ForkVersionedResponse<T>, warp::reject::Rejection> {
     let fork_name = if endpoint_version == V1 {
         None
-    } else if endpoint_version == V2 {
+    } else if endpoint_version == V2 || endpoint_version == V3 {
         Some(fork_name)
     } else {
         return Err(unsupported_version_rejection(endpoint_version));
@@ -53,6 +57,45 @@ pub fn add_consensus_version_header<T: Reply>(reply: T, fork_name: ForkName) ->
     reply::with_header(reply, CONSENSUS_VERSION_HEADER, fork_name.to_string()).into_response()
 }
 
+/// Add the `Eth-Execution-Payload-Blinded` header to a response.
+pub fn add_execution_payload_blinded_header<T: Reply>(
+    reply: T,
+    execution_payload_blinded: bool,
+) -> Response {
+    reply::with_header(
+        reply,
+        EXECUTION_PAYLOAD_BLINDED_HEADER,
+        execution_payload_blinded.to_string(),
+    )
+    .into_response()
+}
+
+/// Add the `Eth-Execution-Payload-Value` header to a response.
+pub fn add_execution_payload_value_header<T: Reply>(
+    reply: T,
+    execution_payload_value: Option<Uint256>,
+) -> Response {
+    reply::with_header(
+        reply,
+        EXECUTION_PAYLOAD_VALUE_HEADER,
+        execution_payload_value.unwrap_or_default().to_string(),
+    )
+    .into_response()
+}
+
+/// Add the `Eth-Consensus-Block-Value` header to a response.
+pub fn add_consensus_block_value_header<T: Reply>(
+    reply: T,
+    consensus_payload_value: Option<u64>,
+) -> Response {
+    reply::with_header(
+        reply,
+        CONSENSUS_BLOCK_VALUE_HEADER,
+        consensus_payload_value.unwrap_or_default().to_string(),
+    )
+    .into_response()
+}
+
 pub fn inconsistent_fork_rejection(error: InconsistentFork) -> warp::reject::Rejection {
     warp_utils::reject::custom_server_error(format!("wrong fork: {:?}", error))
 }

beacon_node/http_api/tests/interactive_tests.rs

@@ -21,6 +21,8 @@ use types::{
     MainnetEthSpec, MinimalEthSpec, ProposerPreparationData, Slot,
 };
 
+use eth2::types::ForkVersionedBeaconBlockType::{Blinded, Full};
+
 type E = MainnetEthSpec;
 
 // Test that the deposit_contract endpoint returns the correct chain_id and address.
@@ -617,13 +619,18 @@ pub async fn proposer_boost_re_org_test(
     let randao_reveal = harness
         .sign_randao_reveal(&state_b, proposer_index, slot_c)
         .into();
-    let unsigned_block_contents_c = tester
+    let unsigned_block_type = tester
         .client
-        .get_validator_blocks(slot_c, &randao_reveal, None)
+        .get_validator_blocks_v3::<E>(slot_c, &randao_reveal, None)
         .await
-        .unwrap()
+        .unwrap();
-        .data;
+
-    let (unsigned_block_c, block_c_blobs) = unsigned_block_contents_c.deconstruct();
+    let (unsigned_block_c, block_c_blobs) = match unsigned_block_type {
+        Full(unsigned_block_contents_c) => unsigned_block_contents_c.data.deconstruct(),
+        Blinded(_) => {
+            panic!("Should not be a blinded block");
+        }
+    };
     let block_c = harness.sign_beacon_block(unsigned_block_c, &state_b);
 
     if should_re_org {

beacon_node/http_api/tests/tests.rs

@@ -3544,7 +3544,6 @@ impl ApiTester {
             .cached_head()
             .head_random()
             .unwrap();
-
         let (_, randao_reveal) = self.get_test_randao(slot, epoch).await;
 
         let payload: BlindedPayload<E> = self
@@ -4586,8 +4585,7 @@ impl ApiTester {
                 assert_eq!(withdrawal_response.finalized, Some(false));
                 assert_eq!(withdrawal_response.data, expected_withdrawals.to_vec());
             }
-            Err(e) => {
+            Err(_) => {
-                println!("{:?}", e);
                 panic!("query failed incorrectly");
             }
         }

common/eth2/src/lib.rs

@@ -38,8 +38,12 @@ use store::fork_versioned_response::ExecutionOptimisticFinalizedForkVersionedRes
 
 pub const V1: EndpointVersion = EndpointVersion(1);
 pub const V2: EndpointVersion = EndpointVersion(2);
+pub const V3: EndpointVersion = EndpointVersion(3);
 
 pub const CONSENSUS_VERSION_HEADER: &str = "Eth-Consensus-Version";
+pub const EXECUTION_PAYLOAD_BLINDED_HEADER: &str = "Eth-Execution-Payload-Blinded";
+pub const EXECUTION_PAYLOAD_VALUE_HEADER: &str = "Eth-Execution-Payload-Value";
+pub const CONSENSUS_BLOCK_VALUE_HEADER: &str = "Eth-Consensus-Block-Value";
 
 #[derive(Debug)]
 pub enum Error {
@@ -1628,6 +1632,26 @@ impl BeaconNodeHttpClient {
             .await
     }
 
+    /// `GET v2/validator/blocks/{slot}`
+    pub async fn get_validator_blocks_modular<T: EthSpec, Payload: AbstractExecPayload<T>>(
+        &self,
+        slot: Slot,
+        randao_reveal: &SignatureBytes,
+        graffiti: Option<&Graffiti>,
+        skip_randao_verification: SkipRandaoVerification,
+    ) -> Result<ForkVersionedResponse<BlockContents<T, Payload>>, Error> {
+        let path = self
+            .get_validator_blocks_path::<T, Payload>(
+                slot,
+                randao_reveal,
+                graffiti,
+                skip_randao_verification,
+            )
+            .await?;
+
+        self.get(path).await
+    }
+
     /// returns `GET v2/validator/blocks/{slot}` URL path
     pub async fn get_validator_blocks_path<T: EthSpec, Payload: AbstractExecPayload<T>>(
         &self,
@@ -1660,24 +1684,70 @@ impl BeaconNodeHttpClient {
         Ok(path)
     }
 
-    /// `GET v2/validator/blocks/{slot}`
+    /// `GET v3/validator/blocks/{slot}`
-    pub async fn get_validator_blocks_modular<T: EthSpec, Payload: AbstractExecPayload<T>>(
+    pub async fn get_validator_blocks_v3<T: EthSpec>(
+        &self,
+        slot: Slot,
+        randao_reveal: &SignatureBytes,
+        graffiti: Option<&Graffiti>,
+    ) -> Result<ForkVersionedBeaconBlockType<T>, Error> {
+        self.get_validator_blocks_v3_modular(
+            slot,
+            randao_reveal,
+            graffiti,
+            SkipRandaoVerification::No,
+        )
+        .await
+    }
+
+    /// `GET v3/validator/blocks/{slot}`
+    pub async fn get_validator_blocks_v3_modular<T: EthSpec>(
         &self,
         slot: Slot,
         randao_reveal: &SignatureBytes,
         graffiti: Option<&Graffiti>,
         skip_randao_verification: SkipRandaoVerification,
-    ) -> Result<ForkVersionedResponse<BlockContents<T, Payload>>, Error> {
+    ) -> Result<ForkVersionedBeaconBlockType<T>, Error> {
-        let path = self
+        let mut path = self.eth_path(V3)?;
-            .get_validator_blocks_path::<T, Payload>(
-                slot,
-                randao_reveal,
-                graffiti,
-                skip_randao_verification,
-            )
-            .await?;
 
-        self.get(path).await
+        path.path_segments_mut()
+            .map_err(|()| Error::InvalidUrl(self.server.clone()))?
+            .push("validator")
+            .push("blocks")
+            .push(&slot.to_string());
+
+        path.query_pairs_mut()
+            .append_pair("randao_reveal", &randao_reveal.to_string());
+
+        if let Some(graffiti) = graffiti {
+            path.query_pairs_mut()
+                .append_pair("graffiti", &graffiti.to_string());
+        }
+
+        if skip_randao_verification == SkipRandaoVerification::Yes {
+            path.query_pairs_mut()
+                .append_pair("skip_randao_verification", "");
+        }
+
+        let response = self.get_response(path, |b| b).await?;
+
+        let is_blinded_payload = response
+            .headers()
+            .get(EXECUTION_PAYLOAD_BLINDED_HEADER)
+            .map(|value| value.to_str().unwrap_or_default().to_lowercase() == "true")
+            .unwrap_or(false);
+
+        if is_blinded_payload {
+            let blinded_payload = response
+                .json::<ForkVersionedResponse<BlockContents<T, BlindedPayload<T>>>>()
+                .await?;
+            Ok(ForkVersionedBeaconBlockType::Blinded(blinded_payload))
+        } else {
+            let full_payload = response
+                .json::<ForkVersionedResponse<BlockContents<T, FullPayload<T>>>>()
+                .await?;
+            Ok(ForkVersionedBeaconBlockType::Full(full_payload))
+        }
     }
 
     /// `GET v2/validator/blocks/{slot}` in ssz format

common/eth2/src/types.rs

@@ -1384,6 +1384,11 @@ pub mod serde_status_code {
     }
 }
 
+pub enum ForkVersionedBeaconBlockType<T: EthSpec> {
+    Full(ForkVersionedResponse<BlockContents<T, FullPayload<T>>>),
+    Blinded(ForkVersionedResponse<BlockContents<T, BlindedPayload<T>>>),
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;

consensus/types/src/payload.rs

@@ -979,3 +979,10 @@ impl<T: EthSpec> From<BlindedPayload<T>> for ExecutionPayloadHeader<T> {
         }
     }
 }
+
+/// The block production flow version to be used.
+pub enum BlockProductionVersion {
+    V3,
+    BlindedV2,
+    FullV2,
+}

testing/execution_engine_integration/src/test_rig.rs

@@ -4,7 +4,8 @@ use crate::execution_engine::{
 use crate::transactions::transactions;
 use ethers_providers::Middleware;
 use execution_layer::{
-    BuilderParams, ChainHealth, ExecutionLayer, PayloadAttributes, PayloadStatus,
+    BlockProposalContentsType, BuilderParams, ChainHealth, ExecutionLayer, PayloadAttributes,
+    PayloadStatus,
 };
 use fork_choice::ForkchoiceUpdateParameters;
 use reqwest::{header::CONTENT_TYPE, Client};
@@ -14,9 +15,10 @@ use std::sync::Arc;
 use std::time::{Duration, Instant, SystemTime, UNIX_EPOCH};
 use task_executor::TaskExecutor;
 use tokio::time::sleep;
+use types::payload::BlockProductionVersion;
 use types::{
     Address, ChainSpec, EthSpec, ExecutionBlockHash, ExecutionPayload, ExecutionPayloadHeader,
-    ForkName, FullPayload, Hash256, MainnetEthSpec, PublicKeyBytes, Slot, Uint256,
+    ForkName, Hash256, MainnetEthSpec, PublicKeyBytes, Slot, Uint256,
 };
 const EXECUTION_ENGINE_START_TIMEOUT: Duration = Duration::from_secs(60);
 
@@ -322,21 +324,26 @@ impl<E: GenericExecutionEngine> TestRig<E> {
             Some(vec![]),
             None,
         );
-        let valid_payload = self
+        let block_proposal_content_type = self
             .ee_a
             .execution_layer
-            .get_payload::<FullPayload<MainnetEthSpec>>(
+            .get_payload(
                 parent_hash,
                 &payload_attributes,
                 forkchoice_update_params,
                 builder_params,
                 TEST_FORK,
                 &self.spec,
+                BlockProductionVersion::FullV2,
             )
             .await
-            .unwrap()
+            .unwrap();
-            .to_payload()
+
-            .execution_payload();
+        let valid_payload = match block_proposal_content_type {
+            BlockProposalContentsType::Full(block) => block.to_payload().execution_payload(),
+            BlockProposalContentsType::Blinded(_) => panic!("Should always be a full payload"),
+        };
+
         assert_eq!(valid_payload.transactions().len(), pending_txs.len());
 
         /*
@@ -468,21 +475,25 @@ impl<E: GenericExecutionEngine> TestRig<E> {
             Some(vec![]),
             None,
         );
-        let second_payload = self
+        let block_proposal_content_type = self
             .ee_a
             .execution_layer
-            .get_payload::<FullPayload<MainnetEthSpec>>(
+            .get_payload(
                 parent_hash,
                 &payload_attributes,
                 forkchoice_update_params,
                 builder_params,
                 TEST_FORK,
                 &self.spec,
+                BlockProductionVersion::FullV2,
             )
             .await
-            .unwrap()
+            .unwrap();
-            .to_payload()
+
-            .execution_payload();
+        let second_payload = match block_proposal_content_type {
+            BlockProposalContentsType::Full(block) => block.to_payload().execution_payload(),
+            BlockProposalContentsType::Blinded(_) => panic!("Should always be a full payload"),
+        };
 
         /*
          * Execution Engine A: