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 0xb3db87bf237efe326bb197d9f90dd04b316a1cef4684db29ccd52c81a49a001d. 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/674cd3c8-030a-43dc-b6cf-3fb1df83cae7.json and https://artists.proofprofile.net/proofs/artist/674cd3c8-030a-43dc-b6cf-3fb1df83cae7.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 0x8c199d3abba46743fd5a5923c723e00b65eae161f2532e344e9b4c1c5a5ccf59. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T17:58:02Z), 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/BXGHW2100010.
Recuerdos de Oro....Éxitos de Vellonera Vol. 7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e831ab8a3c1217eef5fff06471956dfd31db287fd8d17bdd4b1fc3d58e20ba8. 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/QMYW20400995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ed5be3872fbd6479658fc589cd6cf2e9f7612a15c3cb011fb6631ea7796940. 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/QMYW20300895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1afd7df04d1c18ddcf53a3b42875fa2e96818474e960ca28ef3e9aeb73683e. 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/QMYW20300897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa109ccf7c500ef2371586f9414d9f69a8bba14d55b5e9241d4b44af14295b4c. 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/QMYW20300900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf054ac476d71ccd12a90818f9025cdeaed3446ed396b64d1305eb16f14174a1b. 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/QMYW20300901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26e90ef266d7948fc66d9a0a4ac08a99fab08622bcd21878cf7ef355f6e219d. 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/QMYW20300906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda9a570a2937a406a251d6e09681b497c952fb1fdffca510c64f78ad913291a. 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/QMYW20300823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24838c8a44110e7d63c87164d06722873cab86e654262b1616ca25194eee7eec. 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/QMYW20300824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd19e285267ad528534c07da7ccfd435665f3b2b46f4063b6fdcdc5ae623dcb84. 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/QMYW20300826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3afb435fb5070df3bd86e08d51bb58b9f807aefc96c26234b7a6b7cd5476c7. 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/QMYW20300828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4036c70960652f8098a3a1e1ee3e3c3eba13be202abf4071e12f4d1fbaad0afc. 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/QMYW20300829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726a2d4a574b3b0eaccbb482987f768d0bb9256ab8a749de3a8277bfc58b3797. 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/QMYW20300831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6491296dd1cd24dd17d8ee10b2e7b9e25ba2afb8b657a6c7307ab06cdbdbfc0. 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/QMYW20300833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x992225ac8a2433ed4304e3a7e8b6eb9189385be5911a90814b658f91cc48a266. 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/QMYW20300834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d7d548152d6620183934bee4e93304f4d0ff1538369dae4a973a40cdb749d9. 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/QMYW20300660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69eff294d6d417c474ff58610469e9f2d504789751a1ed7915ea9b9cabe10faa. 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/QMYW20300662.
Recuerdos de Oro....Éxitos de Vellonera, vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d63c34f6d7c536c18e5173023d69e65aebe1b4943b6dba557fa05658c468b1. 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/QMYW20400882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2822c8ae4ef8a54e86a66906494449597621da6e65a6c031a7dfa0f24c5b9bc. 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/QMYW20400883.
Recuerdos de Oro.... Éxitos de Vellonera, vol. 2
Recuerdos de Oro.... Éxitos de Vellonera, Vol. 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40488d27d4b5b3c50a19af56c3948ead822ef5d2eefc03d2835f31078d1033a7. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QMYW20400943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb80b0ecd647cd7a30ac5e2e6745b2b0d8aa187149a1a7798728401c5c0ef1a. 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/QMYW20400946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e931738ad46d46c240548d1c1bc85bd2be4c3a0785f43e1078b6cf15c94f9ca. 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/QMYW20300457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9993f83105c32fa1f12d853c57497ac1bb3f33a90756a752b2b5ba23825e1daf. 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/QMYW20300458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9287764bb71bda261633ea1d0899dda51a2162521d6a36161dbcc7db15892f1d. 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/US4XG0404501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705aef9d8122a91e2893911ab91e79e398453ffbf21183382fcdf92630334ec7. 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/US4XG0404503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97fb54ccf9c969e0530bb3170713145baa286e39da42ad9ece9821e28da86f94. 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/US4XG0404504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4072bfc081dc0b3ba08b89c4757a3e2ea4bf9de461d6032a09d5fc9bf6de02b7. 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/US4XG0404505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7d1978678f13d6118a290ce8cd88ea4d7cb155253d0c8e018a2f6c713887a4. 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/US4XG0404507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6556796439175478f487bd504882a011304a40922a12c6f015c8c2035fcc7b1. 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/US4XG0303590.
Meditation Music: Meditative Music Across Ten Centuries
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b55d058123864a4a9f3c8c19a1d47fad01bbd6ea338c9909e6b199d3242d934. 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/ES7141500232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1ffd8cae88dc857d391a84e6e880451153888d27bb6a70d18cc99bd9466ea4. 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/QMYW20400126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff91cd5accab78d61315f8b117d5b29b432e42481099c52864882dc70c7a424. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:33:34Z), 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/QMYW20400130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2312c338f138f3f5fec13741b3d004bb42fdc3ccd98fca0086d8e3dd1c8fcec7. 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/USMRE0838001.
100 Puerto Rico Vintage, La Isla del Encanto Vol. 2
El Día de los Reyes en Puerto Rico - Una Celebración Musical
El Proyecto Genneu (Original Soundtrack)