Check a file

  • Hash on your device. Only the hash is sent.
  • Pending until a real Bitcoin height.
  • A receipt proves those bytes existed by that height. It does not prove the contents are true.
  • Anyone can check at /verify with no account.
  • For a composed object, keep the object file; without it the parts cannot be displayed.

Paste a hash or a moment URL, drop a file, or type the exact words. No account.

Drop the original file or its proof.ots here. It is read on this device and never uploaded.

Dated a line instead of a file? Type the exact words. One changed character is a different hash.

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