Orchestre de chambre 'Pro Arte' de Munich
{"copyright_id":"0x01ca9deed5a24321eeed8f6dff7d9684caff280be8194d4bd60d3f6f52aeb394","name":"Orchestre de chambre 'Pro Arte' de Munich","registered_at":"2026-06-17T16:02:05Z","symbol":"NIM1446497","token_address":"0xfcb4592a83f0642e466a7e55398c4d31abf65e68","type":"artist","uuid":"9054eb47-fab0-4a8a-a2bc-482324b79caa"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ca9deed5a24321eeed8f6dff7d9684caff280be8194d4bd60d3f6f52aeb394. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9054eb47-fab0-4a8a-a2bc-482324b79caa.json and https://artists.proofprofile.net/proofs/artist/9054eb47-fab0-4a8a-a2bc-482324b79caa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).