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What is a Forever Proof?

A Forever Proof is a small file that proves a fingerprint existed before a specific Bitcoin block was mined. It holds the fingerprint, its Merkle path to a batch root, and the OpenTimestamps proof linking that root to Bitcoin, so anyone can check it against the Bitcoin blockchain without sebbi.pro.

How it works

  1. The fingerprint (a sebbi.pro decision, a notarised file or a Human Keys proof) is a leaf in a Merkle tree.
  2. The path of sibling hashes folds the leaf up to the tree's root.
  3. The OpenTimestamps proof replays the operations from that root to a Bitcoin block's Merkle root.
  4. A verifier compares the result with the real block, fetched from independent explorers or your own node.

The format is open (sebbi-forever-proof/1) and free to implement. Because the proof is a file the holder keeps, it still works if sebbi.pro is offline, in a dispute with them, or gone.

Check a proofThe open standardDownload the verifier

Related questions

How do I prove an AI decision to a regulator?How do I make AI audit logs tamper-proof?What records does the EU AI Act require for high-risk AI?How do I timestamp a file in Bitcoin?How do I check a proof without trusting the company that made it?
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