Should I timestamp drafts or only the signed PDF?

Timestamp the signed operative PDF every time. Timestamp major drafts when they were the basis for a decision (credit approval, board paper, tenant offer).

What if the amendment was only agreed by email?

Timestamp the email export if you must, but prefer a clean signed variation PDF. A timestamp dates bytes; it does not turn an email into a deed.

Competing signed copies — which one wins?

A timestamp does not decide that. It shows when each exact file existed. Counsel still interprets execution and priority.

Does this replace electronic signing?

No. See timestamp vs electronic signature. Use both when you need identity of signers and an independent date on the final PDF.

Your first Pooled TimeBind is free, with no credit card required. After that, from US$5; ASAP is US$15. See plans and pricing

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Timestamp loan or lease agreement versions and amendments

Inna Hall

November 10, 2026

November 12, 2026

Guides

Flat illustration of a lender file folder, a laptop showing a signed loan document and a magnifying glass

Before a loan or lease PDF, amendment or annexure goes to the other side, a funder or a file audit, timestamp the exact version you will rely on. TimeBinder^® makes a fingerprint in your browser. The files stay on your device. You get a checkable Proof of Time Certificate that shows each exact file existed no later than a recorded time. It does not show who signed, who owes what, or how a dispute must end. Free to start.

The routine: date each operative version
Situations this habit is built for
Why “Date modified” and email threads fail
What a TimeBind shows, and what it doesn’t
Frequently Asked Questions

The routine: date each operative version

Freeze the set: signed agreement PDF, schedules, annexures, amendment or variation deeds, approval memos, and any “final” pack you will treat as operative.
Optional. Check hashes with the free SHA-256 hash checker.
Timestamp the pack (up to 10 files or one zip). Your first Pooled TimeBind is free, with no credit card required.
Save the Proof of Time Certificate with the credit or leasing file.
Circulate or lodge. When terms change, timestamp the new signed PDF before you send it. Do not rely on an email saying “as amended” without a dated file.

See how to timestamp a contract version, timestamp vs electronic signature, and how to timestamp a file.

Situations this habit is built for

Useful points from the retired loan and lease Scenario pages fold in here:

Late lease amendments and annexures. A variation that “arrives” after settlement or after a rent decision cannot be treated as contemporaneous unless the file chronology supports it. Date drafts and signed versions when they actually exist.
Related illustrative scenarios. See a leasing dispute closed after early draft timing was proven, a side letter that nearly unwound a retail sale, emails, term sheets and a missing approval trail, and a version dispute that nearly invalidated an eight-figure credit facility.
Unsigned annexures. Disputes over whether a compensation or demolition annexure was in the pack at execution turn on versions. Timestamp the execution pack and any later annexure PDF separately.
Email amendments vs signed terms. An email proposing new loan terms does not replace the signed PDF. Timestamp the signed agreement you hold; treat email as correspondence, not a silent rewrite.
Competing signed copies. When two “fully signed” PDFs disagree, fingerprints show they are different bytes. Timestamps show which exact file existed by which date. They do not pick the legal winner.
Approval-file and audit trails. Loan approval memos and term sheets get challenged as altered after the fact. Date the approval pack before credit committee and again if the approval letter changes.
Boardroom timeline fights over loan files. Same habit: operative PDF in, certificate stored with the minute pack.

Why “Date modified” and email threads fail

Desktop timestamps and forwarded attachments are easy to challenge. Portals may store submission time without hashing every schedule. A blockchain timestamp ties a SHA-256 hash of the exact PDF to a public time. See poor man’s copyright alternative for why informal dating habits are weak, and OTS as evidence.

What a TimeBind shows, and what it doesn’t

A TimeBind shows that this exact file existed no later than the recorded time. It does not show authorship, ownership, debt, lease liability or that a clause is enforceable. It does not replace signing formalities, registration or legal advice. This is general information, not legal advice.

Your file’s fingerprint, anchored to a global network secured by real electricity and cryptography.

Editing a file—including with AI—changes its fingerprint, not its existing network record.

How this works

Your file’s SHA-256 fingerprint, a short code worked out from its exact contents, is made in your browser, and the file itself stays on your device. A cryptographic commitment to that fingerprint, which may be combined with others, is then anchored in a block on the Bitcoin blockchain. Bitcoin is secured by proof of work: computers around the world spend real electricity to add each block, and changing an earlier block would mean redoing that work faster than the rest of the network. Until that block is confirmed, your proof is pending. Once the Bitcoin anchoring is confirmed, you can verify the proof against that recorded commitment. The confirmed record can then be checked; Pooled TimeBinds are checked through TimeBinder, while ASAP TimeBinds can also be checked independently. If you check the file later and its fingerprint still matches, that shows the file existed no later than the recorded time. The record doesn’t show who made the file, whether AI was used, or that its contents are true.

Your filestays on your device
FingerprintSHA-256
Network timestampon Bitcoin

Frequently Asked Questions

Should I timestamp drafts or only the signed PDF?

Timestamp the signed operative PDF every time. Timestamp major drafts when they were the basis for a decision (credit approval, board paper, tenant offer).
What if the amendment was only agreed by email?

Timestamp the email export if you must, but prefer a clean signed variation PDF. A timestamp dates bytes; it does not turn an email into a deed.
Competing signed copies — which one wins?

A timestamp does not decide that. It shows when each exact file existed. Counsel still interprets execution and priority.
Does this replace electronic signing?

No. See timestamp vs electronic signature. Use both when you need identity of signers and an independent date on the final PDF.
What does it cost?

Your first Pooled TimeBind is free, with no credit card required. After that, from US$5; ASAP is US$15. See plans and pricing

Timestamp your loan or lease PDF free

Show that this exact file existed no later than a recorded time. Files stay on your device. Get a checkable Proof of Time Certificate. Free to start. Open TimeBinder

Inna Hall

Inna Hall is an Australian lawyer admitted to the Supreme Court of Queensland and the High Court of Australia in 2013. She has worked across government and private legal practice and is the director of TimeBinder, focusing on document authenticity, evidentiary risk, and blockchain-based proof of existence.