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
- d974f419a460fc96463e335bab43c54411e0d85616a7008e717faac39871562e
- Content hash
- 8d6b2e991c61a7120153d0a912afb2bd1a316117d570477fb08709e3b0c8e367
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 1,486
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Block 969,698
- Created (claimed)
- 2026-10-03T07:18:04Z — the Bitcoin date is the one that counts