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
- f91e3b9a1a36c591a827259faf3eb3291e96015fa88a76864999a8123df29780
- Content hash
- da5625e1e6164cc1ad9934f48143a993c11889c665ab7f966c3a792dee1ba494
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 1,567
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Waiting for Bitcoin (usually a few hours)
- Created (claimed)
- 2026-10-03T07:18:05Z — the Bitcoin date is the one that counts