A founder's guide to ESIGN Act and eIDAS e-signatures

Most everyday signatures (NDAs, term sheets, mutual NDAs) are valid under the US ESIGN Act and EU eIDAS as Simple Electronic Signatures (SES).

deckshare.ai generates SES with a tamper-evident audit certificate: the document SHA-256, signer email, IP fingerprint, UA fingerprint, timestamp, and the chain hash at the moment of signing — all embedded in a signed PDF and a JSON certificate stored in R2.

For Qualified Electronic Signatures (notarised cross-border use), partner with a QTSP. We don't claim QES.