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
- bac858be71ae885036635d4f56c881d2a1438e3340c873c13bfe1e17dd587d74
- Content hash
- 2eed4aff465f14a406bacbba8a711cd583eb326496143740ee4b9e8e0a731939
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 2,017
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Block 969,698
- Created (claimed)
- 2026-10-03T07:18:10Z — the Bitcoin date is the one that counts