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 0x9e18a3ee403500c579abf4b19c975fb9eb11b83b89186547ba95d3fe68367ae4. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77c67b07-d124-47cd-9456-550c135d4026.json and https://artists.proofprofile.net/proofs/artist/77c67b07-d124-47cd-9456-550c135d4026.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Carnaval SP 2019 - Sambas de Enredo das Escolas de Samba de São Paulo
G.R.E.S. Acadêmicos do Tatuapé - Bravos Guerreiros: Por Deus, Pela Honra, Pela Justiça e Pelos Que Precisam de Nós - Ao vivo
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 0x0d5fb2040ea14b9661eee0148c66c39598c00d79ec7d129f807489213a6c70f4. 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/BRLIE1800001.
G.R.C.S.E.S. Unidos do Peruche - Nascem do Ventre Africano os Valores do Mundo. África, um Passado Presente no Futuro da Humanidade - Ao vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5622dcc4fc868274100b77cfb85a7b1d36ee137a6bdf9ae20293ecaec540be6f. 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/BRLIE1800015.
G.R.C.E.S. Mocidade Alegre - Ayakamaé - as Águas Sagradas do Sol e da Lua - Ao vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419f9659a9896bbadd98d0d8eb456232a9e47143ffbf443f18b870d74ee31122. 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/BRLIE1800002.
G.R.C.E.S. Mancha Verde - Oxalá, Salve a Princesa! a Saga de uma Guerreira Negra - Ao vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ce111795392772adefd05c1ed48b15cc93575ea40202246aabe5ef09b14354. 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/BRLIE1800003.
S.R.C.S.E.B.F.S. Barroca Zona Sul - Okê Arô - Ao vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3cabccb3128e6906001cce4fbc3cc7e2f20d21fcbfaf910a8fc0d54567210b2. 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/BRLIE1800017.
G.R.E.S. Nenê de Vila Matilde - a Majestade do Samba Chegou! Corri pra Ver... Pra Ver Quem Era. Chegando Lá, Era a Nenê e a Portela - Ao vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe044c4934ba68861819d3f912dabba31ecf687b8feb0e109bca63bc3e32d163d. 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/BRLIE1800018.
G.R.C.E.S.. Dragões da Real - a Invenção do Tempo. Uma Odisseia em 65 Minutos - Ao vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8bba0cdc64089921011643168c3de4649c96af6488a638bd2f3151d0942cf12. 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/BRLIE1800005.
G.R.C.S.E.S. Império de Casa Verde - o Império Contra-ataca - Ao vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b9ae0a0b4333c07d326f0c55d2d45bd554b24ec68b12f8e79da2a3f3ab9fe9. 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/BRLIE1800006.
Grêmio Gaviões da Fiel Torcida - a Saliva do Santo e o Veneno da Serpente - Ao vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14a566048863d87c88543aaf6a59f3275dde5b7ea14638502214d6cba5b6d0a. 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/BRLIE1800007.
G.R.E.S. Mocidade Unida da Mooca - Manto Sagrado, a História Que o Tempo Bordou - Ao vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b46f2a1b72bfbc231e45121255fef60cd6cf015696b541e30f278b23b073a7d. 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/BRLIE1800022.
G.R.C.E.S. Vai-vai - Quilombo do Futuro - Ao vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad51b835ece29080f5c572526ab835643405652bd511d79ccd24981f3af294e. 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/BRLIE1800010.
G.R.C.E.S. X-9 Paulistana - o Show Tem Que Continuar, Meu Lugar É Cercado de Luta e Suor, Esperança de um Mundo Melhor - Ao vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcddc35f2b3dfe4fe3107cad134a2fcccf7228d68241cc855ad8068b9838c5a8. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BRLIE1800011.
G.R.E.S. Colorado do Brás - Hakuna Matata, Isso É Viver - Ao vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1b59c0c540a6291194f5e05ff66232823b60539d8c84bd31003ed57e4b7d83. 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/BRLIE1800013.
G.R.C.S.E.S. Unidos de Vila Maria - nas Asas do Grande Pássaro, o Voo da Vila Maria ao Império do Sol - Ao vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c11a37e83623bd8cf0964838549c51ace9f1bc4db8b575285f306dfd9a2bb20. 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/BRLIE1800009.
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
G.R.C.E.S. Independente Tricolor - pra Sempre Vou Te Amar - Ao vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57984bfb32430a626d35910aa31a95929eb0776931cbc3e277ccd1e556df4958. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/BRLIE1800016.
G.R.C.S.E.S. Águia de Ouro - Brasil, Eu Quero Falar de Você! Que Pais É Esse!? - Ao vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf69f731c6936b344dde81a0dce1384bc6b4fb42b4f65c163501cd6d2daef24a7. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/BRLIE1800012.
G.R.C.S.E.S. Acadêmicos do Tucuruvi - Liberdade... O Canto Retumbante de um Povo Heroico - Ao vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93948bc4e77ba0c02781c55fa214364492f33609965e9e58003d0268035fbe5a. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/BRLIE1800014.