How this works / Signed record
Problem revision
This record was signed by PubPhys and added to the public log. Download the proof and check it with the open verifier: it recomputes every fingerprint, checks the PubPhys signature against the published key, finds the entry in the log and checks the Bitcoin date, without relying on this site.
- Record hash
- 427a486851b2a9e4af26d91fa454832221f8ccc16a408e9672d3e1f88649d3f8
- Content hash
- 89a36f14c894f163bd09caf0ba3fc398ea8730476acc217e31e227bc188a8c7e
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 1,653
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Waiting for Bitcoin (usually a few hours)
- Created (claimed)
- 2026-10-03T07:18:06Z — the Bitcoin date is the one that counts