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
- b7c35353fd62dfdca9055b8937766ba6d667e8b06e1798ee63afd4c309993e11
- Content hash
- 551ee488c9210512b8477220571606002fde93d1c72293828056b05e3f45aa3a
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 924
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Block 969,698
- Created (claimed)
- 2026-10-03T07:17:59Z — the Bitcoin date is the one that counts