FareWitness

File provenance and attestation. Attach a cryptographic identity envelope to any file using your physical NFC token.

📲
Upload & Attest
Tap your NFC token and upload a file to create a witnessed record.
🔍
Verify a File
Upload any file to check if it exists in the system and view its record.

How it works

1
Tap your NFC token
Your physical token's unique ID becomes part of the attestation envelope.
2
Upload any file
The file is hashed and stored with a full context envelope: device, location, browser, and session data.
3
Share the record
A permanent URL is generated. Anyone can view the attestation or verify a file against the database.