How this works / Signed record

Problem revision

Do coherences exist at all under natural incoherent sunlight?

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
6c96e4b98e7eba6ee3fa0a8b034af4f97e69f44adbadd3c7f66857cdbb7318ae
Content hash
f10939bdbab0c9cfbb9795a30621a3fd33edbd16b15eca92f8b7408de7e642b7
Signed by
c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
Log entry
838
Checkpoint
Size 2,123, being published
Bitcoin date
Block 969,698
Created (claimed)
2026-10-03T07:17:58Z — the Bitcoin date is the one that counts