Adam Guettel with Vivian Cherry, Darius de Haas, Annie Golden, Jose Llana, Theresa McCarthy, Bob Stillman
{"copyright_id":"0x3b9dc9e4bcfd18377e0c61e02c1b542ab7d29d8c8ff59a6a3e1b3ed613252c48","name":"Adam Guettel with Vivian Cherry, Darius de Haas, Annie Golden, Jose Llana, Theresa McCarthy, Bob Stillman","registered_at":"2026-06-17T06:21:57Z","symbol":"NIM1308214","token_address":"0x2ac10fe6a7fc4ec3a4e75d8faa4974bcc3e1ce87","type":"artist","uuid":"73bf51f6-e435-4c4d-9f17-96883103dd0b"}
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 0x3b9dc9e4bcfd18377e0c61e02c1b542ab7d29d8c8ff59a6a3e1b3ed613252c48. 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/73bf51f6-e435-4c4d-9f17-96883103dd0b.json and https://artists.proofprofile.net/proofs/artist/73bf51f6-e435-4c4d-9f17-96883103dd0b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe349258358bc6d088baf1190024be2285dcd0f0220aef7d88fc9ba77c82edc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USNO19953003.