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
- 8c1e6a26aac9116250e0401c5f47b9875b097f25daca6f535042b9a3cca997fc
- Content hash
- aca0c65a9142f60ce78bfdc0073a597b12e931a058e8ea78f84565ca76835eff
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 1,120
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Waiting for Bitcoin (usually a few hours)
- Created (claimed)
- 2026-10-03T07:18:00Z — the Bitcoin date is the one that counts