Expand description
Transparency log + OpenTimestamps + Evidence Records for Confium.
Three layers of artifact provenance over time:
- Merkle tree transparency log: every artifact (cert, signature, revocation, re-share event) is appended. Tree roots periodically anchored to Bitcoin via OpenTimestamps. Verifiers can prove any artifact was in the publicly-visible tree as of a given Bitcoin block.
- OpenTimestamps (OTS): anchors hashes to Bitcoin blockchain via public calendar servers.
- Evidence Records (RFC 4998 ERS): long-term archival protection via periodic re-timestamping as hash algorithms age.
See TODO.roadmap/36-transparency-and-ots.md and
TODO.roadmap/37-long-term-archival.md for full specs.