prevHash property

String? prevHash

Hash-chain link: the entryHash of the immediately-preceding entry. Present only on chained logs; its integrity is what audit/verify checks. Multibase-encoded multihash over the RFC 8785 (JCS) canonicalization of the predecessor's immutable content — the same derivation as entryHash, so a verifier recomputes both the same way.

Implementation

final DigestMultibase? prevHash;