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43 lines
2.0 KiB
Markdown
43 lines
2.0 KiB
Markdown
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# Architecture
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Learn how Ethermint's architecture leverages the Cosmos SDK Proof-of-Stake functionality, EVM compatibility and fast-finality from Tendermint Core's BFT consensus. {synopsis}
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## Cosmos SDK
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Ethermint enables the full composability and modularity of the [Cosmos SDK](https://docs.cosmos.network/).
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## Tendermint Core & the Application Blockchain Interface (ABCI)
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Tendermint consists of two chief technical components: a blockchain consensus
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engine and a generic application interface. The consensus engine, called
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[Tendermint Core](https://docs.tendermint.com/), ensures that the same transactions are recorded on every machine
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in the same order. The application interface, called the [Application Blockchain Interface (ABCI)](https://docs.tendermint.com/master/spec/abci/), enables the transactions to be processed in any programming
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language.
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Tendermint has evolved to be a general purpose blockchain consensus engine that
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can host arbitrary application states. Since Tendermint can replicate arbitrary
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applications, it can be used as a plug-and-play replacement for the consensus
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engines of other blockchains. Ethermint is such an example of an ABCI application
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replacing Ethereum's PoW via Tendermint's consensus engine.
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Another example of a cryptocurrency application built on Tendermint is the Cosmos
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network. Tendermint is able to decompose the blockchain design by offering a very
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simple API (ie. the ABCI) between the application process and consensus process.
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## EVM module
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Ethermint enables EVM compatibility by implementing various components that together support all the EVM state transitions while ensuring the same developer experience as Ethereum:
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- Ethereum transaction format as a Cosmos SDK `Tx` and `Msg` interface
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- Ethereum's `secp256k1` curve for the Cosmos Keyring
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- `StateDB` interface for state updates and queries
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- JSON-RPC client for interacting with the EVM
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## Next {hide}
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Check the available Ethermint [resources](./resources.md) {hide}
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