Sha256

SHA-256 hash-chain mode. Each AppendedEntry.entryHash is a 64-character lowercase hex string equal to SHA-256 over the entry's canonical bytes. Non-genesis entries link to the prior entry's hash via prevHash, forming a tamper-evident append-only chain.

Enabling hash-chaining on an executor enables F005 tamper-evident audit. The canonical- bytes format is locked at GA; any future format change requires a new variant (e.g. Sha256V2) with parallel golden vectors.

Available from version 2.0.0 (stable public API).