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 0x6496031c754003aa6685619da6366e127dff194938435c39cdeab3d48c508ebf. 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/98ea729c-986d-4394-a30a-fdbf235684a9.json and https://artists.proofprofile.net/proofs/artist/98ea729c-986d-4394-a30a-fdbf235684a9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sambas de Enredo: Carnaval SP 2022, Especial, Acesso e Acesso II
Afoxé de Oxalá: No 'Cortejo de Babá', um Canto de Luz em Tempo de Trevas
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 0xc7f1d50358fb64163be8dda28319ed06dc99e94445b5f8dcbc3c2645ce8f50c0. 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/BRLIE2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5685ea4a46aef8f750aff0c81c8b4a548b6ae6468930be788cbcfc1d4b6271. 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/BRLIE2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2b9a8a36561c0a97acb0f86f7945b957787d9f5e79ded1328cb4a908502b74. 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/BRLIE2100003.
Preto Velho Canta a Saga do Café Num Canto de Fé
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1c9bd00a33b33bd2fc89515c632e643978fc3e4ddddab67783a16de9be8828. 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/BRLIE2100004.
O Mundo Precisa de Cada um de Nós. A Vila É Porta-Voz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f20a3ab86faf964869bccf0b6bdebfd6d2fc89dac92219c7f79bcfddac8f0e. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/BRLIE2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4caca73583d95cd5163f941ca5a7484e9213d46fafee520b4275d02d95f0a9fd. 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/BRLIE2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83b3a9e5dd04ea5e5c1e22980f90c02f2b6ad7037eb8cc9d1c24476b4e7a04f. 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/BRLIE2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad11208325934983fbe23161e1cce772f499368f4577a05521601d9edbb12b13. 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/BRLIE2100008.
O Poder da Comunicação. Império, o Mensageiro das Emoções...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8230e79ac77d1cda630b7a90b46738ff469e97bab802d14ae9f16916e18c665b. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/BRLIE2100009.
A Evolução Está na Sua Fé… Saravá Seu Zé!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1905d9c6bbdf2186f6b3230920e6c991b626353abd95945cfd90aa901c8f6b5. 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/BRLIE2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0fd9ce8d5a12d958987ed7077573062e0dcfabf16afa8fdb976f11211744181. 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/BRLIE2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912ea9e621dde3a9fa89c1ae3b7d74d09ae172aad0869e56d9baac6f243501c8. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/BRLIE2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafc19854b45f3c6900c823c5c30155345835f7b9a131d87da5e58f80d3c06872. 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/BRLIE2100013.
Carnavais…De Lá pra Cá o Que Mudou? Daqui pra Lá o Que Será?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f93610e3aa83501a155a15d69373926531a70ba32e16d23a11d98ad96aeea4e. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/BRLIE2100014.
A Arapuca Tupi: A Reconquista de uma Terra Sem Dono
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a6f6b94750213869727d4bb26f42e54dbb99eac4691ff822cbff9b71826ef6. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/BRLIE2100015.
O Mergulho nos Rios Sagrados em Busca da Cura, do Corpo e da Alma
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3771fca0dbf05da5fdef46fd161cb05184c6085ad14f0729f3e2983a231e90a2. 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/BRLIE2100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8819222163e06032ee833e5eb452831072c6c37cf708f77169c71f4d458f176. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/BRLIE2100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6523fdfb58fa57fb44e2466821105374d3debbb7793cdb340499d876fd5754. 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/BRLIE2100018.
Rezadeiras: Na Fé do Trevo, Eu Te Benzo! Na Fé do Trevo, Eu Te Curo!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a3423a746055b8274106a30832c505262aa7bdb6987da8bff6d3a7f039675a. 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/BRLIE2100019.
No Ecoar dos Tambores e no Feitiço da Leandro, de Dahomé as Terras da Encantaria: O Cortejo da Rainha Jeje e os Segredos de Xelegbtá
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65d0eec974d5aa4730d4db238c9c42bc3a7920916d4e59be4546408bb6bcf31. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/BRLIE2100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ab8308dc0be1debc5a14010e855242b7e3e0199fefbc9c2ea04d910731b1d0. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/BRLIE2100021.
Sob a Proteção de Oxalá, Festa no Terreiro de Bambas para Caçador, Curandeiro e Padroeiro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de40817e5f12938b0522bc153787a311487ec038338ad3bc49b1bd3ef5fa12c. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/BRLIE2100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d54764ec44fa29075d7580fe75ecd94b763befa2bba23ce245ef36dcb42eda. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZNJY2164501.
Um Conto para Mil e uma Noites: A Viagem da Pantera pra Lá de Bagdá
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809cbd52e5d637c7bdefaae4081b9dec73e83688abd76faaee216c5a9d49e95e. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZNJY2164502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1129d02df8af1a3cc34e9a1b7144d0888750a6ae5ea8743f48a4fa326b00643. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZNJY2164505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f58c90f78a3f0eef89c6ae6b356362860e1a5a09dab22eda9589f63f17c729. 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/QZNJY2164506.