Balinger Kantorei; Kammerorchester Collegium Musicum Tübingen
{"copyright_id":"0x7b52d943b4e1c9e9c21f80723c37390766445033472c6022e0fa951ffeadaeb9","name":"Balinger Kantorei; Kammerorchester Collegium Musicum Tübingen","registered_at":"2026-06-16T20:14:39Z","symbol":"NIM1163302","token_address":"0xfb0d6924e6d2b938df9649df0d7c49831f2f4c54","type":"artist","uuid":"580a837b-b111-4f71-a6bc-caf225ae998a"}
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 0x7b52d943b4e1c9e9c21f80723c37390766445033472c6022e0fa951ffeadaeb9. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/580a837b-b111-4f71-a6bc-caf225ae998a.json and https://artists.proofprofile.net/proofs/artist/580a837b-b111-4f71-a6bc-caf225ae998a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).