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 0x2f1976d320a91f3b6febc3012b28eb82b7f12907dce30236e259c61aca0e0a6d. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/496616fe-29ae-4489-9ea7-00088b29e8f3.json and https://artists.proofprofile.net/proofs/artist/496616fe-29ae-4489-9ea7-00088b29e8f3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mesmo Sem Entender / Eu Escolho Deus (Ao Vivo)
Só Alegria / É de Arrepiar / Beijo Doce (Ao Vivo)
A Vingança / Meu Bem / Aquele Beijo (Ao Vivo)
40 Graus de Amor / Gamei / A Carta (Ao Vivo)
Insegurança / Intriga da Oposição / Já Tentei - 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 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 0xad529952af76f7b00a34cc3af67821bfbb06aac3a7914cfeac3ea3bfe710fab5. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QM7282511743.
Te esquecer de novo / Sinto sua falta / Não tem hora e nem Lugar / Cobertor de Orelha / Puxa, Agarra e Beija - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856f450b4313b9082ca07ed04a1d738e44e6589d871547054e06992f983c11bb. 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/QM7282525857.
Deixa tudo como tá / Reinventar / Vira Casaca (A Sogra) / Pro meu mundo girar / Deixa em Off / Tchau e Bença - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2afe265b319d4c36e535566ffb5b290a7a48ed75a83cb636fdb0d64fe25738f3. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/QM7282525858.
Paulinho Junior e Samba da Ladeira (Ao vivo)
Insegurança / Intriga da Oposição / Já tentei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc857de365ac70cce535710d104ecf7c939386c1a43189d0e5d07751c24913862. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QMFME2586430.
Te Esquecer de Novo / Sinto Sua Falta / Não Tem Hora e Nem Lugar / Cobertor de Orelha / Puxa, Agarra e Beija
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831819513f6885237311d83228485dace0e72acca048d1058af7754d2eb8138b. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QMFME2586432.
Ela só Quer Saber de Sambar / Chega Pra Sambar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5abe76f828e164cf3383f9a2a3774ad483a2a9d7a4d17f00282d8e3f301db6. 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/QMFME2586445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc108c3e65504ab2e1ab5a26548758241ad63ff10a0605fd3dde38a6664d327a4. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/QMFME2586446.