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
- 7bf08dc0cbbc6d712f88659419fa7f025240cebcdba676af431a6ddfada7c88e
- Content hash
- f74e7e7ba6d9762ee68fd76c6f2414eeada27d913b15447b83a8e8e12ddf08ac
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 1,533
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Block 969,698
- Created (claimed)
- 2026-10-03T07:18:05Z — the Bitcoin date is the one that counts