Nibbio may refer to: Aviamilano Nibbio, Italian monoplane 599 GTZ Nibbio Zagato, Ferrari grand tourer Teichfuss Nibbio, Italian single seat glider Italian ship Nibbio
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ced8f920d32899a148cd0df2b273a67398b59a12ee8c39f164617024a31c340. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b58a4785-f5d5-4ce5-a70f-433568d4c622.json and https://artists.proofprofile.net/proofs/artist/b58a4785-f5d5-4ce5-a70f-433568d4c622.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).