How this works / Signed record

Problem revision

Does the background spectrum flatten at the lowest frequencies?

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
acf78c3013eb9df924271e423b47238e721587d8efbc6e160df63d48e4bc3301
Content hash
59c51f038ca16f4784e4b3eda70e075ab9ac2bce78899c743147836aa9d668a9
Signed by
c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
Log entry
606
Checkpoint
Size 2,123, being published
Bitcoin date
Block 969,698
Created (claimed)
2026-10-03T07:17:55Z — the Bitcoin date is the one that counts