How this works / Signed record

Problem revision

Spatial superposition of a levitated nanoparticle larger than its size

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
6c66ab1a106356b497801ed4117f947f1c83bf31fbbfb22c54b8cbab57fb20ba
Content hash
005e0b0c888feb9bc5dda2691840ce021aded3c49d0918f977f7c55f61daaa3f
Signed by
c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
Log entry
2,011
Checkpoint
Size 2,123, being published
Bitcoin date
Block 969,698
Created (claimed)
2026-10-03T07:18:10Z — the Bitcoin date is the one that counts