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 0x6ab5cdf7bc55113dd07e94d267d2931bb09e5c735ec8007d42e70b33923eb719. 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/fdacdc84-6615-44d8-9793-596ad27e6d31.json and https://artists.proofprofile.net/proofs/artist/fdacdc84-6615-44d8-9793-596ad27e6d31.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 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 0x420e940a994268023c140bcd56cd78d1d970b6183af66a7b24aa471ccfb841ae. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QZW9L2236421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87237e84c1549ebb56537f842dc803116b58c96be48b4d4a454f2c4f289d47fe. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZW9N2230020.
Coisas do Amor / Nem de Graça / Fortaleza / Vai Me Dando Corda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55bd8c6413621e29d854fcebc211e0a0905ca33f113f56e885b9aebca2318ee. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZW9N2230021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c4e4c0926f52a7f9b4c0836ebe3a2e89a874040a695fee646c84266a174a8c9. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZW9N2230022.
Mande um Sinal / Energia Surreal / Sorria / Tempo de Aprender / Me Apaixonei pela Pessoa Errada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24534d385fcc5268c5cf95ae950c8a9cc6e8cdf209986280d14288c558ab7e5c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZW9N2245261.
Até Que Durou / 40 Graus / Te Amo Como Nunca Amei Ninguém / Gamei Final de Tarde.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e7b72e4a2c3ca285c9adfef5cbf6f4d1f52cf4da574c58a0195208f72a66e0. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZW9N2245262.
Oi Amor / Acaba Tudo Bem / É Diferente / Ex-Namorada / Pro Meu Mundo Girar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b724e56923c1a76a6df3c48af139ad5fc66c44070f57aa98d982222fad5f47. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZW9N2245263.
Não Precisa Mudar / Ai Que Saudade D'ocê / Beijar-Flor / Simples Desejo Sinal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b088dddc10ecc4367105bc5a38045849a0123f0f04bfa503208e6f473b491d2. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZW9N2245264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba8a1b870d1f9c776a17ee05f3a650e9d705db3a260314228b5c14526c3262c5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BKDZO2300002.
Talvez / É Tarde Demais / Essa Tal Liberdade / Telegrama / Fulminante (Ao Vivo)
Falta Você / Nada Vai Separar / Traição (Ao Vivo)
Falta Você / Nada Vai Separar / Traição - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d40301cce0576b0ee18f55906ef3afaef8553598b2fa65d9014790870ab10c4. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/QZW9K2310009.
A Gente Bota pra Quebrar / Curtindo a Vida / Calma Amor (Ao Vivo)
A Gente Bota pra Quebrar / Curtindo a Vida / Calma Amor - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4380d0ea9275c50ca903fdda46477376e50ca47ef5ae06fcc38a1c2d90dd713a. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/QZW9K2311006.
Desse Jeito É Ruim pra Mim / Perfume / Reinventar (Ao Vivo)
Desse Jeito É Ruim pra Mim / Perfume / Reinventar - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3644b6a8e664a58e244ea602540eba2b23471da92e893d148319631d0f1bd5b9. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZW9K2310901.
Sorri Sou Rei / Aurora Boreal / Pescador de Ilusões (Ao Vivo)
De Tanto Te Querer / Página de Amigos / O Grande Amor da Minha Vida (Convite de Casamento) [Ao Vivo]
De Tanto Te Querer / Página de Amigos / O Grande Amor da Minha Vida (Convite de Casamento) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8499d63e8e2ea939594c4157b8d73d5a5b3369e1e879c335668c080c5255cf74. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZW9K2312807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb678ed66df49289e526ee868fa8054363c28f0fbb72a904fe61034fab8f4aa90. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZW9L2316730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837cabae6cef9d1746cc52038742c05f7670a1d7bc4b923b0eceee11edcfd977. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BKDZO2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c371458f1c14808f2712554b16cbd2cb6e2a843e4bad3889f796bdf6b65c7c0. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/BKDZO2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667b80f125de44cfe352a20cb1cbdb943d7039dfd5c5b11e36a07d990ed1ce58. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/BKDZO2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1282cdf2dccf3dcaacba77f6fa1488cb6ee36411051a01cce449466111a9930f. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/BKDZO2400005.
As Quatro Estações / Sem Radar / A Dor Desse Amor / Pensando em Você (Ao Vivo)
Depois do Prazer / Que Se Chama Amor / Tô Fazendo Falta (Ao Vivo)
Ela / Me Perdoa / Até que Enfim (Ao Vivo)
Pra Você Acreditar / Não Tem Hora Nem Lugar / 1 metro e 65 (Ao Vivo)
Pra Você Acreditar / Não Tem Hora Nem Lugar / 1 metro e 65 - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03dee4fd913eb3b00db158c2dbd75053ae6d3006cdf7bcd7f833e11c3c0b8319. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZWDW2557791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3b7114adce7a91e9984cd9c2b83106a2b7e249c66cd7184dcf6affb7b9a672. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BKDZO2400006.
As Quatro Estações / Sem Radar / A Dor Desse Amor / Pensando em Você - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e44ee2636cb81e8a2f7d6c0ab4d00c7d60c28a25c7ce6ad9b1c872d34f69eb6. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZN882411721.
Depois do Prazer / Que Se Chama Amor / Tô Fazendo Falta - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab42f658f8ba2ed54bf0db63daf8b332eae75bfa3b803d1bf3f9fb1922961a8. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZN882515639.
Oi Balde / Hackearam-me / Erro Gostoso - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceab0d49b313057c04aafb0e80b5ad0f98078ead3071d6c8714539bb5c7a3ead. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZN882587738.
Ela / Me Perdoa / Até que Enfim - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536fa9e11efefb5cdabc53f72851fe0aab89e2ad1160cf2337c562d054223b53. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZWDW2543018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03dee4fd913eb3b00db158c2dbd75053ae6d3006cdf7bcd7f833e11c3c0b8319. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZWDW2557791.