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
- ba1597187265b79787d75420d9a70a7748bb11eba7c59c6733135e8ceab03e47
- Content hash
- f150ff833690d1b6dc4541a3f2690e0147370acfa9029ba26d64e4461f0eb0f7
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 2,068
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Waiting for Bitcoin (usually a few hours)
- Created (claimed)
- 2026-10-03T07:18:10Z — the Bitcoin date is the one that counts