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
- ca4a92d65e61b67b2936070f78e5a66168cdf64c8fa3e1a2525cd38f4051e876
- Content hash
- 9958240c38754b470c62fbd8febc7933ce9786e7f3228e46a837b4c07dcae372
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 475
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Block 969,698
- Created (claimed)
- 2026-10-03T07:17:54Z — the Bitcoin date is the one that counts