A Signature Proves Less Than It Used To

Digital signing has made execution faster and evidence richer. It has also encouraged a dangerous shortcut: the document is signed, therefore the act is valid.

The signer account may be compromised. The person may lack authority. The document may have changed from the reviewed version.

Evaluate four proofs

- Identity of the signer.

- Authority for this act.

- Integrity of the document.

- Intent and process surrounding signature.

Value object — The Signature Assurance Record

- Final document hash or version.

- Signer identity method.

- Mandate and limit.

- Independent approval where required.

- Delivery and timestamp evidence.

- Revocation or dispute route.

Increase assurance by consequence

Routine agreements can use standard workflow. Asset transfer, control change and unusual commitments require stronger identity and independent comparison to the approved final.

A signature is one piece of evidence. Do not ask it to prove what the process never established.

Where this breaks

Signature workflow can create false finality. A compromised inbox, wrong document version or exceeded mandate becomes visually complete once the signature block appears.

The operating move

Bind identity, authority and document integrity before signing. For high consequence, independently compare the signed file to the approved final and preserve the entire evidence chain.

Lock the final version.

Verify mandate and limit.

Alert through a separate route.

Retain completion evidence.

The test

Introduce a harmless version change between approval and signature. The process passes only if the difference is detected before execution.