Create timestamp proofs to prove your documents haven't changed.

We create a digital fingerprint of your file and record it on the Bitcoin blockchain using the OpenTimestamps standard. This creates permanent proof that your document existed in its exact form on a specific date and hasn't been changed since.

If someone modifies a document that was timestamped, the verification will show that the timestamp doesn't match the document, proving tampering occurred.

Yes! Our Team plan is specifically designed with law firms in mind. You can manage multiple clients, organize documents by clients, collaborate with team members, and provide timestamp proofs to your clients.

While we support multiple browsers like Chrome, Safari, and Firefox, we recommend using Brave Browser.

Brave browser has security features built in by default that can help prevent you & your employees from downloading hazardous files and provides additional privacy protections.

No. Only a cryptographic hash (like a digital fingerprint) is stored on the Bitcoin blockchain. Your actual document/file remains private and is never uploaded to the blockchain.

No. We handle all the technical aspects. You simply upload your document and download your timestamp proof.

Your timestamp proofs will remain valid forever. The OpenTimestamps protocol is an open-source standard. Anyone can still verify your timestamp proofs using other similar tools or your own Bitcoin node, even if our service no longer exists

If we ever shut down, we will give all of our customers ample notice to download their documents from our cloud service ahead of time.

When a timestamp is "Upgraded", it means the stamping process is now fully complete for that file and is now permanently recorded on the Bitcoin blockchain.

Initially, timestamps are "pending" while waiting for Bitcoin blockchain confirmation, which can take several hours. Our system automatically upgrades the timestamp proof for you. Once your timestamp proof is upgraded, you can verify your files independently even without our platform as they are on the Bitcoin blockchain.

FYI - Your files are not public, just the hash of your files which is all that is needed for verification.

Bitcoin timestamps have been recognized in at least 4 US states. Even in states without specific laws, cryptographic timestamps can serve as strong supporting evidence.

Yes. Timestamps provide cryptographic proof that anyone can independently verify, including court-appointed experts. They demonstrate that a document existed in its exact state on a specific date and has not been altered since.

Yes. We use enterprise-grade encryption for all document storage.

We require two-factor authentication (2FA) for all accounts to ensure only authorized users can access your documents. We also use enterprise-grade encryption, secure password requirements, and monitor for suspicious activity.