# eth-valkyoth-verify
Support crate for `eth`: `no_std` Ethereum verification boundaries.
Most users should depend on the facade crate instead:
```toml
[dependencies]
eth = "0.23"
```
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 `0.12.0` support-crate release, shipped with `eth` `0.23.0`, adds decoded
transaction signature validation helpers for legacy EIP-155, EIP-2930,
EIP-1559, and EIP-4844 transaction domains. Use raw digest recovery only after
constructing the correct Ethereum signing digest and checking the transaction
or structured-data domain.
Decoded transaction signature validation is still not full execution
validation. It does not prove fork validity, enforce fee rules, validate account
state, or validate blob/KZG commitments.
EIP-712 helpers require the caller to provide both `chainId` and
`verifyingContract`, then check them against the expected execution context
before sender recovery. They do not encode arbitrary typed data or prove that a
domain separator was computed correctly.