# 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:
```toml
[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.