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 0x6f6a31beeefc120571ec4165441344aa93821a326146d823e976b6fda3cb4333. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1b93290f-1ea7-4606-8b8d-a3d904aee9a2.json and https://artists.proofprofile.net/proofs/artist/1b93290f-1ea7-4606-8b8d-a3d904aee9a2.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 0x5f97f68306ef4f9ceb9fa3d6987fc4a49bf0bdccf5023d241d461bef24391035. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEZ651102737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a7521d2e0157bb7f98a1401bae6ce432e4c61644ff2abbf196f3afc5ad3424. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/FR6Z71400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9792a8a68a346a23cf7cf74fef61aa82927bf9e37faf6595ef04bfb4080264b1. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T13:00:06Z), 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/FR9W11519448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b525902fd7cbde1cf7bf644ede807efe788054fc06c14ea268c81f7d7708689. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FR9W11519449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57146c73df03a4e97821118435b520d86edd982a37f04b2f85472caa57a4d89c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR9W11519451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d7b52e61aeebe842da00f35e473a4c1060f43acea397a08aa0c6abf11c8d2f. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FR9W11519453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c879c3ae52494224617167e3bf3731a6940eae2a5a6fbd6b0796102183c88b. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/FR9W11813121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8569473f00979f2b2d06d77e69fc87c487a58335dc900d6d6b11e69dad92f612. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/FR9W12020437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5508691ce49ff934d9624d3f4960b52db97132389209b6061beff3d5395d1a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FR9W12020440.
WE CAME TO SHINGALING / ON THE ROAD AGAIN (Latin Disco Funk from Paris)
EL BAD BOY (Joaquin "joe" Claussell's Sacred Rhythm De La Calle Version, Joe Claussell Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3286c531c76b84a6ecc223136dccd9cc31607d4e5dd81759297d2106c73678. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR9W12440150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e68aa9da79753b0a2e8ae38a79c9a86a01fda6814cc4c1c06b44b665b36b15. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/FR9W12440147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3286c531c76b84a6ecc223136dccd9cc31607d4e5dd81759297d2106c73678. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FR9W12440150.
Funk Fever Vol.2: The Best Of Funk, Soul And Tropical Rare Groove
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe99a65ef632b1abe0e11671e967bb14dbf004dc7690e00f583e443dcb95c76. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FR6Z71400096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe99a65ef632b1abe0e11671e967bb14dbf004dc7690e00f583e443dcb95c76. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR6Z71400096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba84cbce97b94851878bf51be6a77f72b6c91fbd4bce1321442f93bd9b06891. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US6QR2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02cc1f23bafed9bdeeb04d691ee5ac7551c089a766e964a2dec1cfb95d1a31c. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/FR6Z71400099.
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