How this works / Signed record

Topic

Microscopic origin of friction and wear

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
dda1bf26b56de68ff6e0bc9fd1289af1a90b0889469abd062648a7c0948252d9
Content hash
16ea2f8b71d633d5eee697e64bd0dd40102224251bf6752d4fdb77178830e895
Signed by
c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
Log entry
90
Checkpoint
Size 2,123, being published
Bitcoin date
Block 969,698
Created (claimed)
2026-10-03T07:17:50Z — the Bitcoin date is the one that counts