Beyond Image Overlays: Cryptographic Trust
A signature on a contract is not merely an image of cursive handwriting placed on top of a PDF page. In a court of law or regulatory audit, an electronic signature must prove two fundamental assertions: who signed the document, and that the document was never modified after signing.
Meteor Sign embeds a cryptographic digest calculated over the entire byte stream of the document. Every participant's interaction is recorded with RFC 3161 compliant timestamps.
Autonomous Audit Verification
When a document signing cycle completes, Meteor Sign attaches an immutable Certificate of Completion. Any subsequent modification to a single character in the document immediately breaks the cryptographic seal, alerting all parties to unauthorized tampering.