Verify Proof MCP server

This is a small helper that lets your AI check blockchain timestamp proofs for you. You point it at a file and a proof file, and it tells you whether the file matches the record that was anchored on Bitcoin or Polygon. It is handy for anyone who needs to show a document has not changed since a certain date, like legal, insurance, or forensic work.

What this MCP server does

You ask your AI to verify a file against a proof. The AI uses this helper to compute the file's SHA-256 hash on your computer. The helper then reads the proof file, which contains the hash that was anchored on a blockchain like Bitcoin or Polygon. It compares the two hashes and checks the Merkle path if there is one. Finally, it tells you whether the file matches the proof and when it was anchored.

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What you can do with it

• Verify a local file against a blockchain proof file
• Compute the SHA-256 hash of any file
• Explain in plain words what a proof file proves
• Check a known hash against proof data
• Create a new proof by anchoring a file's hash on ProofLedger (needs a free API key)

Try asking your AI

• “Verify ~/contract.pdf against ~/contract-proof.json”
• “What does this proof file actually prove?”
• “Compute the SHA-256 of this file so I can anchor it”
• “Check if this hash matches the proof I have”

What it gives back to you

You get a clear answer in the chat: whether the file is verified, which blockchain it was anchored on, the transaction ID, and the date it was timestamped. For a hash request, it gives you the SHA-256 hash. For an explanation, it describes what the proof asserts and how to check it on a block explorer.

Before you start

Who it's for

This is most useful for legal professionals, insurance adjusters, forensic investigators, and anyone who needs to prove a file existed at a certain time without trusting a third party.