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 0xea14eca7c245ce7f836e4234a1a49a1691bb5d966e4d1923f2689f9e4029b47a. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f3414da1-5b40-4ab4-b973-9ba22c190781.json and https://artists.proofprofile.net/proofs/artist/f3414da1-5b40-4ab4-b973-9ba22c190781.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 0x112f1f0a6496809a85ac67bc4f4db54ba4bed79de9c174d20c33c7344361ed97. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/BXCMP2200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc30d6f14917b22d84940d486a822b6990224cea75ba50ddf018931074eaa9de. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/BXCMP2200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f1fe64b3e7c583b202f3319e18cf8416f17baa4c11cead19919f07f058aa24. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:55:30Z), 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/BXCMP2200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7d3d37ff05990586f03d4d3814123340dbd9b9a841222d46cf72621f392a42. 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/BXUX32300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4ae354753b3dc2337bb3ba6ddf3334de16532bc219a28e050837a61ac0a602. 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/BR1000600097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7902fa3098cb671dd6029ec16c133086f0b77808d9cbdad0c60d4dee8e88b5. 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/BR1000600099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec014f96c75f1a2b62f67fae6e88856450ee79ba712149b6eb8e1fdc5c903889. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BR1000600107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fbf70d06d956790ac727d89bfd06f7a1af039933cf1af5ed85ffcc3fe21ff27. 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/BR1000600111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97acc2aa6d6516156429a6bf75fb00f1e3a397811f25f27ffd9de338aa4219af. 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/BR1000600103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead7f75259e052e2535c29f819b64ec665a4e55192c6576de28048096c8b8a21. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BR1000600112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224ed4b8d475cae8f129908d86e8403c0acf19b50e77e745076c011b0696f31f. 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/BRAPI1400216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32888fc2bb6934e658a436df7e4b7ba43658f9867361b3767db5ded97ed0b6c6. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T16:28:39Z), 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/BRAPI1400209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdaa38bdf105f4b90643702f53e7e54461cfefcd97e2b4657cb38c0a1d996e2a. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/BRAPI1400211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d162156e77b8738c2df10fdb5c923872f1dc71e2870884c98f5dd09c168010. 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/BRAPI1400215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8601c94d6a486d5f9cc793ce9de004fc5aa2e50b92da69a90d0367813f787ea7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BRAPI1400219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b2603fef5efd001804c5374c4fe91cc47e4f0bd0c6c6b457839aed893b3663. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T18:02:49Z), 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/US7VG1539810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5fc054a82a6dd6540164e9458d393a78e3c83442b384fb1d851b3f3e232149. 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/BR1000600098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2532991aed37e43be819cf67cd94dd11be85ac3784d4e104a10610777d6a4c. 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/BR1000600101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd592a8c777ebe5c68b1a51e80ca8649066da4c3e3ab5a52890e02edc8e41d1f1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BR1000600114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07cc81d1101402898529f5d96861b704fb2b9c317719c960c7806655582e860. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BR1000600108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67d0118ee70693f906f115b9c59cd14df80d8b387c1012bf129d175236990eb. 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/BR1000600116.
Barretos 2023 - O Rodeio no Melhor Estilo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001fbb21f4e0ad40a80c8cc1ef68024bb96b11691d1b2b04acea99698cd33b28. 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/BRBGK2300038.