Contracts · NDAs · Documents
Certify a contract with Bitcoin anchoring
For contracts, NDAs, commercial agreements, offers, letters, policies and business documents, CopyrightChain creates Bitcoin anchoring with SHA-256, PDF certificate and public verification.
A professional proof flow for valuable digital assets.
CopyrightChain is designed for fast certification, clear public verification and strong Bitcoin-oriented communication.
Contracts and NDAs
Create a clear proof date and technical evidence trail for important documents.
Businesses and consultants
Track versions, submissions, revisions and relevant attachments.
Proof bundle
Combine hash, date, certificate, QR and Bitcoin references where included.
From file to public verification.
The user keeps a complete certification path: hash, certificate, Ancoraggio Bitcoin where included and public verification.
1Upload PDF or document ZIP
2Generate SHA-256 fingerprint
3Download PDF certificate
4Share public verification
Questions people ask before certifying.
Which documents can I certify?
Contracts, NDAs, offers, reports, policies, technical attachments, presentations and document packages.
Is it useful for professional firms?
Yes, it creates a structured documentary proof for client files and digital workflows.
How is proof preserved?
Through PDF, QR, verification link, SHA-256 hash and Bitcoin/OpenTimestamps data where included.