PURE
Independent authenticity certification registry for books, journalism, and cultural works. Ed25519-signed certificates on a tamper-evident ledger — trust lives in the registry, not the logo.
PURE Siegel is a four-product platform that issues, manages, and verifies authenticity certificates for human-authored and human-led creative works. Every certificate is Ed25519-signed and written to a tamper-evident, hash-chained ledger — making forgery detectable and revocation permanent. Certificates are resolvable via a permanent public URL and printable as QR codes for physical books, editions, or archival materials.
The platform targets publishers, journalists, and cultural institutions that need a credible, tech-backed answer to AI-generated content flooding their market. The registry is the trust anchor — not a logo, not a policy document. The frontend (pure-certification.com) covers the landing page, issuer portal, and public verify flow. The backend runs FastAPI on Railway with MongoDB as the ledger store.