Chain Infrastructure

CoreChain is the shared blockchain engine that powers both DevChain and AppChains. It provides the foundational components for running an Ethereum-compatible execution layer entirely in-process.

Architecture

Key Components

• TransactionProcessor — validates signatures and nonces, executes EVM bytecode, produces receipts
• BlockProducer — assembles pending transactions into blocks, calculates state roots via Patricia trie
• Pluggable Storage — in-memory (testing), SQLite (DevChain), or RocksDB (production) via IBlockStore, ITransactionStore, IStateStore, ILogStore, ITrieNodeStore
• JSON-RPC Handlers — built-in handlers for all standard eth_*, net_*, web3_*, and debug_trace* methods
• Merkle Proof Generation — eth_getProof for state verification
• Forking — fork state from live Ethereum networks via ForkingNodeDataService

Packages

Package	Description
Nethereum.CoreChain	Core blockchain engine with EVM, block production, and RPC
Nethereum.CoreChain.RocksDB	RocksDB persistent storage backend for production use

Built On By

• DevChain — adds instant mining, SQLite storage, Hardhat/Anvil compatibility methods, and Aspire templates
• AppChains (Preview) — adds genesis building, sequencer, P2P networking, and L1 anchoring