thumb|right|350px|The New Orleans Rhythm Kings in 1922: (left to right) Leon Roppolo, Jack Pettis, Elmer Schoebel, Arnold Loyacano, Paul Mares, Frank Snyder, George Brunies The New Orleans Rhythm King
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 0x6a263cb03fe17539733c8d3189cf8c2b6a8960b5db474786f70ddc7bb03b5950. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b94420ff-3696-44d0-a1bb-bc0b2bd8031f.json and https://artists.proofprofile.net/proofs/artist/b94420ff-3696-44d0-a1bb-bc0b2bd8031f.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 0x15b333854e51d4768abcce70c874255283801056d1b7ebd4d5d7f5a9d33ff4db. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEXN92265224.
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The Complete New Orleans Rhythm Kings, Vol.1 1922/23 (Remastered)
George Brunis With The New Orleans Rhythm Kings, Vol. 2
George Brunis With The New Orleans Rhythm Kings, Vol. 1
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Classic Jazz- The World's Greatest Jazz Collection - From New Orleans to Harlem, Vol. 6
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George Brunis With The New Orleans Rhythm Kings: Volume 2
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