'Brigadoon' 2017 New York City Center Male Ensemble
{"copyright_id":"0x260c367f8fc94acf91510656923455f793c177ea5addfd4e67dc7fd5c97eeaa9","name":"'Brigadoon' 2017 New York City Center Male Ensemble","registered_at":"2026-06-15T15:38:40Z","symbol":"NIM0753747","token_address":"0xfdc8cac27983af6fde1d4b6b31ae5164f4676dc8","type":"artist","uuid":"0619ead7-8554-40c7-9afb-33e5acba465d"}
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 0x260c367f8fc94acf91510656923455f793c177ea5addfd4e67dc7fd5c97eeaa9. Chain 2 (Bitcoin): anchored in block 953867 (2026-06-16T01:09:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0619ead7-8554-40c7-9afb-33e5acba465d.json and https://artists.proofprofile.net/proofs/artist/0619ead7-8554-40c7-9afb-33e5acba465d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lerner & Loewe's Brigadoon (New York City Center 2017 Cast Recording)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x60998d56cdbce94ac38c8decdf262fe8e93417d61250fe513f8c4b0f69f65baf. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK31881841.