Seal Your Content.
Prove It's Yours.
CertNode Seal creates cryptographic provenance for your digital content. C2PA credentials, RFC 3161 timestamps, and a public verification page — for every file you seal.
C2PA Credentials
Industry-standard Content Credentials (COSE Sign1) embedded in your files. Compatible with Adobe, Microsoft, and the Content Authenticity Initiative.
RFC 3161 Timestamps
Court-admissible certified timestamps from an independent TSA. Proves exactly when your content was sealed — not when someone claims it was.
Public Verification
Every seal gets a unique verification page anyone can check. Embed the badge on your site. Buyers, partners, and courts can verify instantly.
Refund Revocation
When a Stripe refund happens, the seal is automatically revoked. The verification page updates to show revoked status. No manual work.
Authenticity Scoring
0-100 scoring based on C2PA, timestamps, and registry presence. GOLD, SILVER, or BRONZE certification level on every seal.
Embeddable Badge
SVG badge that shows real-time seal status. Embed on your storefront, portfolio, or product pages. Every badge click is a brand impression.