{"id":738482,"recorded_at":"2026-10-28T04:12:46.155846Z","observed_at":"2026-10-28T04:12:46.155680Z","subject_kind":"endpoint","subject":"d8f3ca68-cdde-4a16-b96c-bb8eaf52e3a0","kind":"mcp.tools","method":"probe.mcp/1","body":{"count":3,"tools":[{"description":"Show how many Proof-100 proofs are left and the BTCZ deposit address for buying more.","inputSchema":{"properties":{},"type":"object"},"name":"check_balance"},{"description":"Create a private, dated proof that a file or data existed, without sending the data. Use this when you already have the SHA-256 fingerprint (hash) of a file; for a short text, use timestamp_text instead. Compute the hash locally over the exact bytes (for example: sha256sum MyFile.pdf) and pass the 64-character hex string. The fingerprint is written into the encrypted memo of a shielded (zk-SNARK) BitcoinZ transaction, sent to a new address made for this proof only; the block timestamp dates it. Takes about 10 to 60 seconds and uses 1 proof from the account (requires the account key in the Authorization header). Returns ok, txid, viewing_key, explorer link and proofs_left. Tell the user to keep the txid and viewing_key: together they let anyone verify this one proof with ZCheck, and reveal nothing else. On error (invalid fingerprint, invalid key, no proofs left, send failed) no proof is used.","inputSchema":{"properties":{"fingerprint":{"description":"SHA-256 hash of the file, as 64 hexadecimal characters (case-insensitive), e.g. 968c796b7f8c9259ee92d7168d882df2f347d9711a51da90182c98d69139cdb7","pattern":"^[0-9a-fA-F]{64}$","type":"string"}},"required":["fingerprint"],"type":"object"},"name":"timestamp_fingerprint"},{"description":"Compute the SHA-256 fingerprint of a short text on the Proof-100 server (the text is not stored), then write that fingerprint privately on the BitcoinZ blockchain. Returns the fingerprint, the transaction ID and a viewing key for this one proof. Keep the viewing key: with the txid it reveals this proof only. Uses 1 proof.","inputSchema":{"properties":{"text":{"description":"The exact text to timestamp","type":"string"}},"required":["text"],"type":"object"},"name":"timestamp_text"}]},"body_sha256":"baaf3960578737bc2d4d94b43745b55f25262c9b9245dcdac7b4ceb335ded4aa","prev_id":null,"leaf":"0xc86bfacb844ba08cb7e8d7e71036936fa8e029b3c422516ef67538a4dfc6827e","leaf_text":"{\"body\":\"baaf3960578737bc2d4d94b43745b55f25262c9b9245dcdac7b4ceb335ded4aa\",\"id\":738482,\"kind\":\"mcp.tools\",\"method\":\"probe.mcp/1\",\"observed_us\":1793160766155680,\"prev\":null,\"subject\":\"d8f3ca68-cdde-4a16-b96c-bb8eaf52e3a0\",\"subject_kind\":\"endpoint\"}","day":null,"proof":[]}