Shows a file existed no later than a recorded time

AI can fake your file. It can’t fake when the original existed.

TimeBinder®, based in Brisbane, Australia, seals your file’s SHA-256 fingerprint to the Bitcoin blockchain, recording a date it existed no later than. Change a single character or pixel and the fingerprint no longer matches. Watch it happen, then try it yourself.

Start free – timestamp your first file →
Sealed original · fingerprint anchored to Bitcoin14 Mar 2026, 09:12 AEST · block 941,206 (example date and block)
Services AgreementPDF, 2 pages
The Client agrees to pay the Contractor a total fee of $5,000 on completion of the work in Schedule A. Signed by both parties, 14 March 2026.
Live SHA-256 fingerprintcomputed in your browser

✓ Matches the sealed original

Same content, same fingerprint.

Your turn: change one letter in the document.

Free plan: 1 Token a month (1 Pooled TimeBind). No credit card required. Sign in with email or Google. See pricing

We don’t guess whether something is fake. We show what your original was, and when it existed.

Now try it on your own file

See the exact fingerprint TimeBinder would seal. It’s calculated right here in your browser. Your file is never uploaded.

This is a preview of the fingerprint. Sealing it to Bitcoin happens in the app. Seal a file free →

How a timestamp settles it

Seal your file the day you make it. If anyone ever questions it, the fingerprint and the date do the talking.

  1. Created

    You finish a song, design, contract or draft. It’s the real original, and only you have it.

    demo_v3.wav · 12 Feb (example)
  2. Stamped

    TimeBinder fingerprints it on your device and anchors that fingerprint to the Bitcoin blockchain. You get a Proof of Time Certificate.

    SHA-256 9f2c…41ab · sealed
  3. Disputed

    Someone shows up with an AI-edited copy or claims they had it first. Screenshots and file dates are easy to fake.

    AI_remix_final.wav · claims 3 Mar
  4. Checked

    Re-hash your file and compare it with the record. Same fingerprint, earlier date: evidence your version existed no later than that date.

    ✓ matches · sealed 12 Feb (example)

See how it works, step by step: fingerprint, Pooled or ASAP, certificate and checking →

See illustrative examples by industry: contracts, claims, research and creative work →

Know exactly what your proof covers

Honest claims are the ones that hold up. Here’s precisely what a TimeBind shows, and what it doesn’t.

A TimeBind shows

  • This exact file existed no later than the time recorded on the Bitcoin blockchain.
  • The file still matches its fingerprint: altering a single byte gives a completely different fingerprint.
  • Your contents stay private: only the fingerprint is recorded, never the file.

A TimeBind does not show

  • Who created the file (authorship or ownership).
  • That the contents are true or accurate, or whether something was made with AI.
  • How it’s treated as evidence: a timestamp shows a file existed by a time; admissibility depends on the jurisdiction and the court.

Start free. Pay only when you need more.

Every TimeBind holds up to 10 files and includes a Proof of Time Certificate. Verification is always free, and there’s nothing to pay to keep your proof.

Free

$0

1 Token every month (1 Pooled TimeBind). No credit card required. A paid plan replaces the Free plan’s monthly Token.

Essential

$20/mo

5 Tokens a month: 5 Pooled or 1 ASAP + 2 Pooled TimeBinds. Tokens roll over.

Expert

$50/mo

15 Tokens a month: 15 Pooled, 5 ASAP, or a mix. Tokens roll over.

Enterprise

Custom

Custom Token limits and dedicated support. Talk to us about custom integrations.

Just need one or two? Buy Tokens with no plan using + Buy Extra Tokens in the app: 1 for $5, 3 for $15 or 9 for $40. A Pooled TimeBind uses 1 Token and an ASAP uses 3, and bought Tokens never expire. All prices are in US dollars (USD). Firms and teams that timestamp every week can use Business plans, from US$149 a month for 60 Tokens. Compare all plans →

Your questions, answered

What is TimeBinder?

TimeBinder is a blockchain timestamping service. It shows that a digital file existed no later than a specific time, and that it still matches its fingerprint, by anchoring the file’s SHA-256 fingerprint to the Bitcoin blockchain. Files are hashed in your browser and never uploaded, and each TimeBind comes with a Proof of Time Certificate that can be checked later. It doesn’t show who created a file or that its contents are true.

Does TimeBinder detect AI fakes?

No, and we don’t pretend to. Detectors guess. A TimeBind shows what your original file was and that it existed by a recorded time. Any edited copy, made by AI or by hand, has a different fingerprint, so it can’t pass as your sealed original.

Is my file uploaded or stored anywhere?

No. Your file is fingerprinted on your own device and never uploaded or stored by TimeBinder. Only the hash, a short one-way SHA-256 fingerprint, is used for blockchain anchoring. Nobody can rebuild your file from it.

Will a TimeBind stand up as legal proof?

A Proof of Time Certificate is verifiable evidence that a specific file existed no later than the recorded time and still matches its fingerprint. It doesn’t show who created the file or that its contents are true. Whether it is accepted as evidence depends on the jurisdiction and the court, so get legal advice for your matter.

Do I need to understand Bitcoin or own any crypto?

No. You don’t need a wallet, coins or any technical knowledge. Use the free plan, or buy Tokens by credit or debit card. We handle the blockchain side for you.

What’s the difference between Pooled and ASAP?

Pooled TimeBinds combine many users’ fingerprints into one blockchain entry, usually recorded within 24 to 48 hours, and often sooner, depending on Bitcoin network activity, and are verified through TimeBinder. ASAP TimeBinds go into their own Bitcoin transaction, broadcast straight away, and can be verified independently even if TimeBinder’s website is offline.

What files can I TimeBind?

Any file type: audio, images, video, PDFs, drawings, code, spreadsheets and more. Each TimeBind holds up to 10 files, and the price doesn’t depend on file size or type.

Whatever you make, prove when it existed

Guides and free tools for the work people protect most with TimeBinder.

Latest from the blog

Read all articles →

Seal the real thing before anyone fakes it

The best time to timestamp your work was the day you made it. The next best time is now. Your first TimeBind is free.

Start free – timestamp your first file →

Already have an account? Sign in to the app