Prove every document
is real.
Cryptographic document authentication for purchase orders, invoices, wire instructions, and contracts. Provenance for the documents that move money.
Three steps.
Upload, sign, verify.
Document authentication that takes seconds, not days — for both the signer and everyone who needs to trust the result.
Drop in Your PDF
Open the SureMark platform and drop in any PDF — a purchase order, invoice, contract, or wire instruction.
Sign with Your Credential
The credential holder digitally signs the document with their SureMark credential. The signature binds identity to content cryptographically.
Recipients Confirm
Anyone can drop the signed document into the verification platform to confirm who issued it — and that it hasn't been altered since. Instant, no account required.
purchase-order-2026-Q2-1847.pdf
Documents that move money or matter legally.
SureDocs™ stops financial fraud at its source. Purpose-built for the document types where forgery is most damaging.
Purchase Orders
Stop fraudulent POs from triggering supplier fulfillment. Provenance baked into every authorized order.
Invoices
Recipients confirm an invoice came from the real vendor before paying — eliminating invoice redirection fraud.
Wire Instructions
The single highest-fraud document category. SureDocs™ credentials make spoofed wire instructions instantly detectable.
Legal Contracts
Cryptographic proof of who issued and signed every contract — non-repudiable, audit-ready, court-defensible.
Official Documents
Government correspondence, board resolutions, official statements — proven to come from the real issuer.
Approval Records
Internal authorizations, sign-offs, and decisions get an unforgeable audit trail tied to the actual approver.
SureCircle™ Identity Assurance + SureDocs™ =
complete enterprise protection.
In a world where images, videos, and documents are all easily forgeable, you need provenance for both the people communicating and the artifacts they're sharing. SureCircle™ Identity Assurance and SureDocs™ are designed to work together.
Verifies the person
Cryptographic proof that the human on the other end of the call is real — before they ask for the wire.
Verifies the document
Cryptographic proof that the PO, invoice, or contract came from the actual issuer — before you act on it.
Proof, built in.
See SureDocs™ in a 30-minute live demo. We'll sign and verify a real document together.
Schedule a Demo →