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
- f968ac34ae2bb2b59fa111e56bac5bdeb7fd284f3eda7b96713a714c333197dd
- Content hash
- 8f5d8a108d2e9fcf4dfd25f3987a8ae9b3177797043b705161f6ca8fa7b0fd76
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 1,733
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Block 969,698
- Created (claimed)
- 2026-10-03T07:18:07Z — the Bitcoin date is the one that counts