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 0x011911dfc673a6d14bbbdcc2156c0ba1658df5ecafa325b1aa16e61337f603e0. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/65871062-4a00-4c7e-8d75-dafbd55e0f3f.json and https://artists.proofprofile.net/proofs/artist/65871062-4a00-4c7e-8d75-dafbd55e0f3f.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 0xcb4cbfef0ccd3cc3f9e7a23a68d869f18f1aeb7bc05e80a400652ace9606e60e. 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/BRAPI0500561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63899fe4e8b6e7e75f5dc2cb359e32f3d7d15b35254793dcc8b1cf6cb951ada. 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/BRAPI0501025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb977066d54bd2317381d7a35810525606bc65fd104a52721d70d6764ab302620. 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/BRAPI0501142.
Verso / Peão Apaixonado / Mexe Que É Bom
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6aa119d7b5e73b89e01500e4e357d986d19525850f80c89518b9f923001b64. 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/BRAPI9900061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5694c302c6acd6a95687502f70c5886f423ea31d5fc45249873ef44389c887df. 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/BRAPI0501026.
Verso / O Que Tem a Rosa / Verso / Se Ela Não Me Amar Vou Ficar Doidão
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0e9672b2372378136c5471dc882420c7ba9f0f0de7b650cac93ff1d7364bca. 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/BRAPI9900080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba83a6e6b1bad97dc4aa8a21df56ebd57d81a08b7fbd6a5d750220bb8f60ec0. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BRESM0400298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ccdda07fb8ec302d57c4b1c3e4380ba11df4fe3d63bc19eb4af85b094a8bc5. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/BRAPI0501036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f365c7859c0e495f2e723e66f8355e9bc214fb8156043435fae75dbc3115a6e. 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/BRAPI9900069.
Verso / Deixa Rolar / Verso / Eu Não Aguento Mais Minha Muié
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43235fd7bc9d65fc25d17b30077c6e1f9e5234fafe17c0261bd8d925c4620b1. 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/BRAPI9900063.
Loira Se Você Soubesse / Dia de Formatura
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bfee9ebafc5c0464f7becd4baaaa4d9c8166ee90d40b0a332ee7bd8ba472658. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRAPI0501032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f29e1f4a27f42084eca3cbae4e9aa932b9ec450b981de3c1b5109b439eeeaec. 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/BRAPI9900067.
Verso / Peão de Ouro / Verso / Verso / Missão de Detetive
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f5a5ffc91b1a296786ad164e01d7db152986cc79276e86ec6c930edaf37bd3. 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/BRAPI9900073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474d05c19eb4b6bcd6b7e43cbf1a3c6dbac967723ec1bcd4d5266ac8221982cc. 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/BRBGK0500274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c194824e6d40f809b3dfab4599940bccd5af44fc87b4e186a793acb63dd8a3. 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/BRAPI0501210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba83a6e6b1bad97dc4aa8a21df56ebd57d81a08b7fbd6a5d750220bb8f60ec0. 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/BRESM0400298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa40d41e3f76cab2e9c970bfb3b2e7c253549a745a0f6ce4d272d2477d5ca6526. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRAPI9900163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517667e1b0d4aa77b715af1cb1e38e6d418d677ac3475cc1be54b6483d4a7938. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BRAPI0200072.
Solos de Acordeon - Dois Amigos No Forró, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13510b4ac2f6930859f2d7a4e68b8db7003d1901bd4fc363d8015249e35dd8ff. 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/BRAPI9900150.
Pot-Pourri: Saudades de Ouro Preto / Saudades de Matão
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b43069662886615b75beaf44fd91d381d59bc2f98e88f0941a25c79975baca0. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BRAPI9900154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa40d41e3f76cab2e9c970bfb3b2e7c253549a745a0f6ce4d272d2477d5ca6526. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BRAPI9900163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec5a7348000408b2e964e5e16723bb94becede4f0747e06bb6990351ee0a199. 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/BRAPI9900152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc047e639fed1b322e848d1fd868edb4a6f140ee426ed77cc9407dc7ae58a7bf1. 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/BRAPI0300290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b3c6cb557d7824a2fa91302fc73ceef25699656db337176b063c6a7b8ea679. 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/BRAPI0300291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888c7e8c72cdcf89784e9b8bf0254e4361a55f68f185f7f8a20f3cf406e548a8. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BRAPI0300292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc61e170587cf56f0b14e5b718009c166776aacc6279a03feeb50d19480ae25d. 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/BRAPI0300293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a4fff0a46a5b126275d49578f33a3ac0a6a0590aacba6b053a39bd2198fb6c. 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/BRAPI0300294.
Pot-Pourri: Forró de Cabo a Rabo / Forró no Escuro / Que Nem Giló
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4891f71de344d02bb3861817597cd4c76b227e79b7080e4199b82b32a2be829. 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/BRAPI0300295.
Pot-Pourri: Adeus Mariana / No Meu Pé da Serra / Cintura Fina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4977b0286823bc466ec26502c7b807d55b51c83653441ee24287f66b498f9d. 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/BRAPI0300296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83d57fb600f2ba45f1ffbd4140438e4a95c9b4f6d73b09c6dd34733c7ca36d6a. 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/BRAPI0300300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91385d6ff976084c0bbb233650a0d1fb163385be2744d766ad09c6781fc08732. 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/BRAPI0300302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40832d6c0b326e7b97966a3885684f77fb82b55e99294fd6558f96620976df41. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:48:33Z), 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/BRAPI0300303.