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 0x399e4d72db15676bb3d41409e6a2b6e4a2ee2548c7c1f3f5d52a2ab0d47f9f35. 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/b18d4672-a55c-46bd-ac57-d931b0d7a1fd.json and https://artists.proofprofile.net/proofs/artist/b18d4672-a55c-46bd-ac57-d931b0d7a1fd.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 0xe311eabb44a048547e1290f999549c40897503a37fd7161f8a67c72a085953ea. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BR8UV2200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ece1ebd1422e7a071354b454c9cc325bcdf31654fe5b5270788cd48479b971d. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:27:48Z), 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/BR8UV2200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452780e0398e5360550a4ce4dbf3fd7a933d5dd0cd32f08e7606ab4a65d23139. 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/BR8UV2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c9afb92dbb0e541ba51876397b03604a5a82edb6632d095703ac4a52f0d524. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:39:19Z), 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/BR8UV2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bbd3ec17fb73924a80deb9362785f6295cce1824a9c7a507851bbbcfea087cd. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/BR8UV2200018.
Milthinho no Estúdio Showlivre (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf33d41475c6a09217710ee683fb5912cd6385fc2787085235cc53c628c93637. 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/BXSSW2300223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9c3680489c68c71965d2ecb61f0325b87f44f58090a424a01731d30d9c0e8d. 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/BXSSW2300225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1791d3469215630d6a2a1d6370550e52cb3d545c07e1c119623b676d2b50d049. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BXSSW2300230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d9f04c4562591bf8ec593739d7f93b9dcce1cdf41d32f70b9ad141bab4cbe3. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/BXSSW2300229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203ba8e158e9963341fa8db55cd47c4f86890d9b764b6e0129135e6ac3e38da7. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/BXSSW2300226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95562f2bb41c49ff79b6f403431ba1ea17afdee088ba1948ca10bceddebd2696. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:28:19Z), 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/BXSSW2300231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd212995b8ba2c24f260f5bc6c3ae5fdecc28e31ca0de2a5c1bfd01088a9e1876. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:46:39Z), 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/BXSSW2300232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d2d1c08b772d992b9e7303b20ce33d4c48254b6d32010484875dcb64b1d7a2. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/BXSSW2300228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5ab748398506c7123d3aa82468efada21e5e5ba5f75c6b763034bc118e7558. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/BR8UV2300007.
Milthinho no Canal do Leandro Brito (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b3e046c182d6b8836647583f2b9b3f938533954e73c4fef07601e65ab81994. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:26:34Z), 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/BCL6D2300076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2418629385a38bc50c99b7019a372934282fd866a094c03eb405ba11e9064a45. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/BCL6D2300072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff218a809259ad0bd95470d31416cd5b8d17e22cef2ac8de9b2084859424de2d. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/BR8UV2200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee840e870f95570eb38499e3c052abc5a347bb64b3add3f9fc95c5740ec60d7d. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/BR8UV2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148b66f9cae2ec650e974820c5f3ff1ddef2d948a4bc4ee62da441666398eb6c. 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/BR8UV1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f826236a82319fc3b9adcc8f9111db1ff7d5a1418077d4179214a236c9a213. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BR8UV2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42581d8be687c573d6c07e621ae6b47db560b17e5d0d68d635bfe8bba6e302a0. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:43:16Z), 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/BR8UV2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327ac4974240858f74b4e448abd30399aaf1395dc8d88e664ef0e12c9ae0e47e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BR8UV2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bbd3ec17fb73924a80deb9362785f6295cce1824a9c7a507851bbbcfea087cd. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/BR8UV2200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5be4392a34feb4f959d6fca5f64783791dc7afc8cf4db36c53947b015b7f9f2. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/BR8UV2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884f6a5ec53a8bf9ce8e6acb9fdcac387a2c3218053bcdf669bbb8fd0e346cc1. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T02:23:45Z), 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/BX6X42400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aed44b897a641550509dfd502ae1b220d9fe6f4e072b3570906173b95acf478. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/BX6X42400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090397f2b5738b74db6a7c89ed58d73dcfe140f8bd1722ade60337a3e7356f59. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/BX6X42400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b101c88795e9978ce20f880a4c38150610679241b3fae95eed37a83721ac82. 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/BX6X42400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeeff552a07166b07f49d94dd13ce5a9326861c029cba59de6cd690fb211a9e4. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:41:35Z), 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/BR8UV2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc83e2a3d3fa109549f308ad9ca7ba7d2d6cdc2ff4a44f8bc38be71829c0b70. 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/BX66R2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc83e2a3d3fa109549f308ad9ca7ba7d2d6cdc2ff4a44f8bc38be71829c0b70. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BX66R2400013.
Marra de Durão / Não Quero Despedida / Mande Um Sinal - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4d1400c84f5e89aeafdf2bb2be2383acdf9a6d72cf44c548153e09d0bcfd1b. 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/BRSME2400551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x568aaf8072c3d4f9b2bed0763289ceebe42a253754dda560b1873bdaff2c8af1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BC59L2300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4d1400c84f5e89aeafdf2bb2be2383acdf9a6d72cf44c548153e09d0bcfd1b. 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/BRSME2400551.
Azul Sem Fim / Como Nunca Amei Ninguém / Amor e Amizade
Respeita Minha História 3 (Canta Exalta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f7717b181c6a30047bd98bccabd4f1679089fce062fd85fb46fef8a19d656d. 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/BXSWA2400302.