How this works / Signed record

Problem revision

Why cryogenic copper structures sustain much higher accelerating gradients

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
ff6e51f5decd6d1f71d24304ce4f2d941f42d289733be31bc0774afc0ee9d5ac
Content hash
a856544cae46355322a46408ac14d34a0b542c16a90bb16e231ff6a98ce2cb02
Signed by
c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
Log entry
693
Checkpoint
Size 2,123, being published
Bitcoin date
Block 969,698
Created (claimed)
2026-10-03T07:17:56Z — the Bitcoin date is the one that counts