eth-valkyoth-protocol

Support crate for eth: fork-aware no_std Ethereum protocol validation state and transaction envelope shell classification.

Most users should depend on the facade crate instead:

[dependencies]
eth = "0.17"

Crates.io: https://crates.io/crates/eth

This package is published separately so the eth workspace can keep small, auditable crate boundaries. Treat it as a lower-level building block unless the eth documentation explicitly says otherwise.

The 0.17.0 release adds caller-reviewed ChainSpec, ForkSpec, Hardfork, and ValidationContext types for explicit fork activation context. Use ChainSpec::new only for hand-audited static tables; use ChainSpec::try_new for dynamic, generated, or merged fork entries. Selection APIs reject wrong-chain entries, duplicate hardforks, and non-monotonic hardfork or activation ordering before returning a fork context.

This crate retains the earlier EIP-2718 typed envelope classification and unvalidated transaction models for legacy, EIP-2930 access-list, EIP-1559 dynamic-fee, and EIP-4844 blob transactions. It does not validate signatures, recover senders, enforce transaction chain binding, account for gas or blob gas, verify KZG commitments/proofs, apply fee-order or duplicate access-list policy, or imply fork validity.