The Metro Mass Choir Of The Gospel Music Workshop Chicago Chapter
{"copyright_id":"0x37dd34c95cbe884ca8d1b88fe7ad16fb811b6cb19659bccf15496f93d1bbba7d","name":"The Metro Mass Choir Of The Gospel Music Workshop Chicago Chapter","registered_at":"2026-06-17T16:37:43Z","symbol":"NIM1454997","token_address":"0x39a18e66db6cd616990c4727c7d787de80d9aee5","type":"artist","uuid":"921f418e-e03a-4764-86e1-7d407e180a83"}
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 0x37dd34c95cbe884ca8d1b88fe7ad16fb811b6cb19659bccf15496f93d1bbba7d. 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/921f418e-e03a-4764-86e1-7d407e180a83.json and https://artists.proofprofile.net/proofs/artist/921f418e-e03a-4764-86e1-7d407e180a83.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).