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
- 81af2cef1b2e16c5c863a99fb7672f7648e2e67109f059c4a295736f9a301779
- Content hash
- 89e2c4259177f8dc121239b226e6662c2d81852634244e096c79a871d13c8838
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 1,292
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Block 969,698
- Created (claimed)
- 2026-10-03T07:18:02Z — the Bitcoin date is the one that counts