Keepsake offline verifier

Check a sealed Yubikiri proof bundle entirely in your browser. Files never leave this device. No account required.

Public keys URL

Or paste a keys JSON file with the proof files below.

Drop a room archive .zip, or the files
manifest.json + activity-chain.json + inclusion-proof.json

Choose files

Documents process provenance from a Yubikiri commission room. Not forensic proof of authorship, authenticity, AI detection, or identity verification. Spec: yubikiri.art/developers/keepsake