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 0x8fab925746ae0cea4b5f86e48563a6616b99c6deb18ba8aaa6e3d3756a491cbf. 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/e868d576-8bb0-410c-9956-3c2abbbb0c29.json and https://artists.proofprofile.net/proofs/artist/e868d576-8bb0-410c-9956-3c2abbbb0c29.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 0x0bc0e74ac9771fb9815a78815bcee49ab09ef0bdaadcb3187a2efa19ffcf7098. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/ARG991038358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e73c4f08183d6d16ae337137b5f50d98328d18e2e1c576f91daf215beed8e5. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ARG991038361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c66f2bbd3925166ef2c8d9604765b71146427403013d75cdb6059718ee194f. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/ARG991038365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4900bd11bcca06930722accba7e3064eee367a599309513991b09da8042fb5. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/ARG991038368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41af9dea98f1d5b61edae8260ce72f3b6838e7f312f3eab37e7e7370af80e162. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ARG991038370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd5691863af13f819f927dccffe43b4f0e220bc225af28a4a3471902f912b49. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ARG991038606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df2524edb730f1383d7f2373112957e6edd1850a7c3023cd373be28ed3efb41. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ARG991038382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296362e96e46204f632b50a49a44b9be1ea3c6e146d2b86c213eb161c613c96d. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/ARG991038295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091fb7a4a07399edbe3c5bf5ba75d7e03aed76f43de43f66f76683bc2e41de74. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/ARG991038298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6ace21869162063ee1ec9342df8341a62d1c21e4b6ea789546fc54a09923e5. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/ARG991038303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca693cb6c6080c08e8f55f5d517e40a9a6d4e0fdeeff7557c84d7e7875961ec0. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/ARG991038304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e57a6126261b620084ae9d78e74a8e993f84a6ee40895efbf222c28e5d5e90c. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/ARG991038329.
Dímelo Delante de Ella - En Vivo en Latino 11
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d01873d7ef127a8267504b1d05a7b1fd9b2d2af247bdc0726506f06284f20c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ARG991038330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa09b534cbabede2527e08c7298296d25d7b61a739f554a833beed489c7d84a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ARG991038331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e4c812c05bfb21ae14f11c6e0ef339b2e05c5734cb23e6edc2572829460d1a. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/ARG991038332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd133de8bff163c5627925022c8f954548f24f61b1e7b330a00a9101337642b82. 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/ARG991038333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec910b6f7225ed003ec8302321a79e4a824c7e12bb95ab0d68d630db36b574e5. 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/ARG991038334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6af9ff2a64a354d671b59d5c326222303b635700f527591d684de0cb9ace1f. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/ARG991038336.
Hablando de Mujeres - En Vivo en Latino 11
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799bb135d3a032c796ad4779ba68eb5f270ada509cdf7191d66331228dfef1b4. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/ARG991038339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x936fecec6675bc104b0eed4552b220fff0f9e772b8e23248eace7ebc4f9dbac2. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/ARG991038342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x701e875ffd64417233ee5f3f34323fc5a473873041a91833a75b9946bf65753e. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ARG991038320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7467a42fe4463815067c447db7cb5e03953ca12b78c0055052dcc6a11fd7a1. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/ARG991038308.
Enganchados / Ojala - Señora - Mezcla de Amor Y Pasion - Pagaras - Llorando Por Ti - Volver El Tiempo (En vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88aab0dce31538ecc6ae3919a869be7b973e1235a621e4cafa1244e306111f21. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/AR15Y2300286.
Cumbias: La Debilidad de Tu Amor - Me Siento Solo - Sufres al Verla Con el - Mi Vida Es un Tormento - Vuelves Arrepentida - Te Quiero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5b968d641e1b22f53e89b0e791ee37309cc73c793e8bf11651853acd814b13. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/AR15Y2300287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa007157436f8e4b898d08fe974491bc525137ec7782e65b80c2b85262fa8fd89. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/AR15Y2300300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0628fd53936f0e0c0dd17ee9556573bdd56864ae2bee8fde83fd6eda086357c4. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/AR15Y2300313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ab968ded20659bf41d898341dbc5c2d4049c53f2221de79222cbfd2fc41303. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/QZNJX2404352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0590b2aa96e08899f6a8ffe3b2835d4c3bf44d68c171f5d64368f5c6420eef97. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/QZNJX2468493.
Canciones para Mamá - El Dolor Que Dejo Mi Madre / a los Brazos de Mi Madre / el Ultimo Adios a Mi Madre / Extraño a Mi Madre / El Retrato de Mamá / Que Hacemos Con Mamá / Madre Te Llevo en Mi Alm
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0dd940f17b64c9244eeda5db9285b9e8f077075f35a04ab5225b3b435a0602a. 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/QZW9K2429976.
Enganchados: Viviré en Tu Mente - Pecando por Amor - Marinero de Luces- Que Hablen de Mi (En Vivo)
Enganchados: Viviré en Tu Mente - Pecando por Amor - Marinero de Luces- Que Hablen de Mi - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410124ffdbcb6a1106599b9f5711868d53e99efbd990e67e393d9be8aee9a44b. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/QZW9M2416026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a0e90bf4c4276d1362e0600efdd4614d25b7ac291ddf706bc0a703fe377d69. 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/QZNJW2503026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2634621bf269cf2e4316046d17cdcde95fc834256c35b4ff8bd72ae5401801. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T01:09:53Z), 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/QZNJX2524088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef824dd7a6892de15edb4af0664a18d2fe3cfd4acb38b5fff4127ed55faa5cc. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZTPX2524449.