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
- 4f7ead691bd5eb9518f7784b8113a6f7cd032a0a96364bd5fd24cc13d8749c66
- Content hash
- c928578b8307602442611e1f3bf598f8d3abe00b77b00697966b4ef1442d26b4
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 685
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Block 969,698
- Created (claimed)
- 2026-10-03T07:17:56Z — the Bitcoin date is the one that counts