Prove it existed. To the second.
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A timestamp is the cheapest evidence you will ever create. It proves that a file existed in exactly this form at a given moment - useful long before a dispute, and decisive once there is one.
Copyright, know-how, designs in progress, draft specifications, source code, contract versions: much of what matters to a business is never entered in any register. If ownership or priority is questioned later, the argument turns on what you can prove about the file and the date. A cryptographic timestamp settles that question without disclosing the document itself.
Your document never leaves your device. Your browser derives a fingerprint from it - a short string that cannot be reversed back into the file - and only that fingerprint is sealed against a trusted time source. Anyone can later check a copy of the document against the fingerprint, but nobody can reconstruct the content from it.
The result is a certificate you keep alongside the file and can produce in negotiations, in an ownership dispute, or before a court. It does not replace registration where registration exists - a trademark or a patent still has to be filed - but for everything that lives outside a register, it is the difference between an assertion and evidence.
How it works
Choose your document
It stays on your device. The file itself is never uploaded.
A fingerprint is computed
Your browser derives a unique cryptographic fingerprint from the file.
The fingerprint is timestamped
Only that fingerprint is sent, and sealed against a trusted time source.
You receive a certificate
Download the proof and store it with the document it belongs to.
Timestamp a document
Drop your document here
Our secure document timestamping tool is launching shortly.
Timestamping records that a file existed at a point in time. It does not by itself establish who created the work or what rights attach to it - we advise on that separately.