Factflew
Zero-data file certification via local Web Crypto & Polygon
What is Factflew?
Factflew is a file certification service on Polygon built around an "Unknow Your Customer" (UYC) architecture — anonymous timestamps, zero identity collection. SHA-256 hashes are computed locally via the Web Crypto API, so files never leave your device. Certificates are issued instantly through a PWA, with no names, emails, or phone numbers; device auth runs entirely on an FF-code system.
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