UD Notarize
Free · 3/monthTwo functions: self-certify any document cryptographically (SHA-256 hash + cryptographic timestamp), or prepare a document for submission to a Remote Online Notarization service.
When is self-certification sufficient?
Internal contracts, NDAs, service agreements between known parties.
Diary entries, correspondence records, internal memos.
Confirming you received a document at a specific time.
Establishing you created a work at a specific moment.
Self-certification vs legal notarization
Court filings, real estate transactions, international legal documents, sworn affidavits.
Business agreements, personal records, copyright timestamps, proof of receipt.
Notarize.com, DocVerify — legally accepted for most documents in many US states. UD prepares your document for submission.
Self-certification: instant, free, cryptographic. RON prep: structured .uds ready for submission to licensed RON services.