BVRAI eSign

Cryptographically secure e-signatures. PAdES-B-LTA. Verifiable in Adobe Reader.

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Real digital signatures

A PAdES-B-LTA seal with an X.509 certificate chain is embedded into the PDF at completion. Verifies in Adobe Reader without our infrastructure.

Trusted timestamps

Every signature timestamped via RFC3161 TSA. Long-term validation data embedded for indefinite validity.

Tamper-evident audit log

Every view, verification and signature is hashed into a chained, append-only log that is recomputed whenever a document is verified.