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
- c1cfed59f5ae77039707cf3c1e685d99c0dd73063e074ecc56601fb6cb0252cc
- Content hash
- 09ac57c27619d4ab405d0cf22645e224b5624535c313ada78f45ed1e3b71b6e3
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 410
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Block 969,698
- Created (claimed)
- 2026-10-03T07:17:53Z — the Bitcoin date is the one that counts