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 0xe13632ca7484637b225262054f4f11a2ca0da0cf1c2df3fdc8c903663a764b1f. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5402bb7c-869c-469e-8079-296a2813aa6c.json and https://artists.proofprofile.net/proofs/artist/5402bb7c-869c-469e-8079-296a2813aa6c.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed898c2c8277e2c664e8442db663f07d0da5c20d7c95337d1e45fe45ac135d4. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNJV2059949.
Agora Vá/Bola da Vez/Minhas Qualidades/Esse Alguém Sou Eu/Amor Eu Não Consigo/Eu Te Amei/Procure Entender/Procure Me Esquecer
Hotel Califórnia/Vazio/Vem Comigo/Ana Me Leva/Não Vá/Quarto de Hotel/Vou Dar um Tempo/Melô do Thururú/Perdi Você
Prisioneiro / Garota / Vem Me Amar / Surra de Amor / Pistoleiro / Eu Tenho Pena de Você
Ao Mundo Vou Contar / Linda Japoneza / Volta Meu Amor / Mil e uma Noites / Meu Coração Só Quer Você / Final de Semana