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 0xff4ec8da5d76c56d44e72b02c1684493505762af72c0f2e9f3b4f0e78fbaa686. 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/61052387-4c88-4028-a8f6-cf7265e3e383.json and https://artists.proofprofile.net/proofs/artist/61052387-4c88-4028-a8f6-cf7265e3e383.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 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 0xd6a7eeed3d1db27efd9dffa43eed7e52d2d255b7bfe20bcd12db7be180735688. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES5021701516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74fef7037651f838f779e1926c38b18edda7e8c55365a20f66de3f07ca41f78d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ES5021702567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ec5b3009fca9a64599c250025f56e29414b8739c8bd2522dde0d500ad543f9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES5021702573.
Colección De Oro: El Inolvidable, Vol. 2
Colección De Oro: El Inolvidable, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594fef72239598c4560027fea4e88ac8718eda31406f32f7fed17ab0807bcefa. 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/US2BR9700716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40eb4361eb65df8c5f7139de609c988e6ca834784eda5ce040e5e107f3bd1cfc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US2BR9700709.
The Real Cuban Music - 100 Essential Greatest Hits (Remasterizado)
The Real Cuban Music - Daiquiri Sessions (Remasterizado)
The Real Cuban Music - Mojito Sessions (Remasterizado)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39712da8f72692363d69f45fe04c0a191c651a455a5e158f048c5af7607dea2c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US2BR9700474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea2b1b59c65afd8bc06e20b3ee6eb26992112cd32b8ec5115da4b73353640af. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US2BR9700465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbc9c10bc6b1af925aa95e075f24759fc32d3558a9222e37011e9d3b8eb8f93. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US2BR9700473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03b8d33bbbfd5e74ba50b70cba1e5ea7a9ea992ce2d94b0ee376d7377f74bc0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US2BR9700471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8695594c5576143ac75e71b4156130da6c94c69bac54caabddcbdedc8f96f32. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US2BR9700470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d9e6f0109534abcd7c16574376bc3f48d2d91c467f5b8ecd288db14a144f92. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US2BR9700469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f62469a833fc2ec793b8ae7296a10c0ce506c8d0fa171aee068e2a3310a1e6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US2BR9700457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe294ec710a00f3eea1444453a2722d4fa00c21a2bf184b50d7b86577918cfe1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US2BR9700466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcfa46b34f2ef8a2b1526252f47b603e52444d240ddfc8e4bcd1251945c3fa3a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US2BR9700464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f782d27fb225d60869d5e74501804f0aa700982e7f53dcd6f139d6a53733ed. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US2BR9700472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfecc00bd7f1fd94a555d1344186a1553c205de375ae42ec604b9fb94c71b4bf. 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/US2BR9701811.
Colección de Oro: Así Se Cantaba y Bailaba en Cuba, Vol. 2