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
- 6e0f350309f814f4e1d69e9bf842015cff29b64a78fbbef2ce720a699d2c40b9
- Content hash
- 5ed66aef3c551575d0b440a41bd3329762b4c879b3d1454147e23cbecf17e307
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 1,416
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Block 969,698
- Created (claimed)
- 2026-10-03T07:18:03Z — the Bitcoin date is the one that counts