One account's archival boundary: the hash of its last archived chain link (the anchor the
account's first remaining link must extend) and the signed sum of its archived legs (the
baseline the consistency fold starts from). Authenticated via ArchiveState.
One account's archival boundary: the hash of its last archived chain link (the anchor the account's first remaining link must extend) and the signed sum of its archived legs (the baseline the consistency fold starts from). Authenticated via ArchiveState.