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 0x5713d6fdcd83c012f0fec72dd3fc3f095bddf34f112043109ff3770cfbab48f7. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/900c75de-35f9-407e-9b7a-b577e39aac34.json and https://artists.proofprofile.net/proofs/artist/900c75de-35f9-407e-9b7a-b577e39aac34.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Azul, Vermelho e Branco / Pra Sempre em Minha Vida / Ô, União da Ilha, Ô
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 0x36ba44991dcf6a29a79926186c33247bc5a931e980a73ab9f11db203c1d9628a. 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/BR3A82200015.
Neguinho da Beija-Flor: 50 anos de Avenida
Sambas de Enredo: Carnaval SP 2022, Especial, Acesso e Acesso II
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.
Vinícius No Plural. Paixão, Poesia E Carnaval / Incidental: Se Todos Fossem Iguais À Você
Sambas De Enredo Das Escolas De Samba - 2013
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0faea2e83f31a706eb20a06ad3f045340fbe63b98574699674175ead6a1ed74. 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/BRGES1200008.
Olímpico Por Natureza, Todo Mundo Se Encontra No Rio
Sambas De Enredo Das Escolas De Samba - 2016
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794c5ab71ce248f4c267902a9224de494684e9e99c6fc7f8e3af9fb45b495c19. 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/BRGES1500009.
Sambas De Enredo Das Escolas De Samba 2017
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ea0bd9fb29d44ab7cce1939fba4fe9334e011946a775269f2d78f5e972ce3b. 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/BRGES1600011.
Sambas De Enredo Das Escolas De Samba 2018
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1eb82e313e79050cb07276cc3e772296790d1018455fa6665e7a21188352aa8. 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/BRGES1700008.
Repense, Reflita, Recicla, Vem na Onda da Sustentabilidade Com a Tubarão de Mesquita!
Sambas de Enredo 2025: Série Prata (Superliga Carnavalesca do Brasil)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11bf4bb8ede545b8f4036a6cb6cc0633a39dba31247abfaa76e1d8919a37efcb. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-21T17:05:30Z), 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/BKST02500040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c174e87425ba177a5206c5875de5afd89c7531448015f20f431fedd0b85089d. 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/BRGES1400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85be9aa52277abf9694dd599bfd1d914e917c6f2879d657c565c84a7e6ed03f2. 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/BRGES1000011.
De Londres Ao Rio: Era Uma Vez... Uma Ilha - GRES União Da Ilha Do Governador
Sambas De Enredo Das Escolas de Samba - Carnaval 2012
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99cf2130fea4c790e8eb1aba8073e6bd6a2214d0d9b62c5dd84fec576cbdccb0. 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/BRGES1100012.
É Brinquedo, É Brincadeira, A Ilha Vai Levantar Poeira - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2be1b1e819c4900f946e7487b672b3b92413598121fd3016f2561c655e366b5. 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/BRGES1300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06e6a376cf6cdc9ad3c64ce57d41fb588cfd743a5845586ad0c1e06844ede69. 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/BRGES2200005.
Dom Quixote De La Mancha, O Cavaleiro Dos Sonhos Impossíveis
Sambas De Enredo Das Escolas De Samba - Carnaval 2010
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4498cafdef2f6b53f8c7010007d8970e21fc0663185ce0eeee5c015e1e7b8b0. 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/BRGES0900012.
A voz marrom que não deixa o samba morrer
Sambas de Enredo Carnaval de São Paulo 2018
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f0986f8a7c21068310587714f6edd1409846eb7f460ab3f6a7301556d3a544d. 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/BRLIE1700006.