How this works / Signed record

Problem revision

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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
ec960d90ef6443b334f903e8c930243add5a04b385f93a9075b8c991e11006cd
Content hash
bb62b82b7fdce371699b605488a8af94cf3eacaa39505469ac06833b85752c58
Signed by
c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
Log entry
1,244
Checkpoint
Size 2,123, being published
Bitcoin date
Block 969,698
Created (claimed)
2026-10-03T07:18:02Z — the Bitcoin date is the one that counts
Download proof (bundle) Record as JSON Keys