Choir of the Blevins Davis & Robert Breen production
{"copyright_id":"0x63338c397ecdb0c0d4adbd5a7bba1c05d4d3a7aec496a0e1199a7040412f5442","name":"Choir of the Blevins Davis & Robert Breen production","registered_at":"2026-06-21T16:17:30Z","symbol":"NIM1972092","token_address":"0x4dd7131eff381a34f5035571d9c8b199f7e1ca8b","type":"artist","uuid":"f8054baa-75ea-4b34-88b9-597a0bcdac79"}
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 0x63338c397ecdb0c0d4adbd5a7bba1c05d4d3a7aec496a0e1199a7040412f5442. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8054baa-75ea-4b34-88b9-597a0bcdac79.json and https://artists.proofprofile.net/proofs/artist/f8054baa-75ea-4b34-88b9-597a0bcdac79.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Porgy and Bess - Act One, Scene I: Summertime - Live
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 0x9b58c6cca899d0488c65ea461bf970b6015da8cd8093a9e8dc7a02b79a79deac. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEE210840502.
Porgy and Bess - Act One, Scene I: Introduction - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db81f6861b744b549068f61689232d1445114ec80bb1dbc9b76a92a590722dd. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/DEE210840501.
Porgy and Bess - Act One, Scene I: Lissen to yo' daddy - A woman is a sometime Thing - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9e341c2113bdcc13416392e40785fbbab89f914be67a7951e8983d60093d15. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), 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/DEE210840506.