# Click Clack - [Receipts, not detectors](https://clickclack.mintlify.app/index.md): Click Clack records what entered a draft. This site is for the writer who has to hand that record over, and for the publisher, editor, or platform who has to check it. - [Check a receipt](https://clickclack.mintlify.app/check-a-receipt.md): Verify a Click Clack signed history on your own machine. You do not need the app, an account, or a network connection for the ordinary check. - [Export signed history](https://clickclack.mintlify.app/export-signed-history.md): How a writer downloads the receipt a publisher can check. Markdown is the manuscript. The JSON file is the proof. - [Timestamps](https://clickclack.mintlify.app/timestamps.md): Optional OpenTimestamps evidence is an extra check, not the ordinary one. A Bitcoin attestation is an upper time bound after you verify it against a chain you chose. - [What a receipt proves](https://clickclack.mintlify.app/what-it-proves.md): A valid export is internally consistent, signed, and bound to the included manuscript. It is not operator-independent non-repudiation, and it is not a detector. ## Optional - [Documentation](https://mintlify.com/docs) - [Blog](https://mintlify.com/blog)