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 0x4fade410ae43ebbce8df02d587ea91ffe016a13a7e289cfe8f14e40810f45dee. Chain 2 (Bitcoin): anchored in block 953795 (2026-06-15T13:44:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e00fdcd8-6a15-4a8c-93f3-73239523ce50.json and https://artists.proofprofile.net/proofs/artist/e00fdcd8-6a15-4a8c-93f3-73239523ce50.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
O Meu Coração Tem Medo / Deixa Eu Te Querer / É Tarde Demais / Essa Tal Liberdade (Ao Vivo)
Telegrama / Mega Star / Ligando os Fatos / Me Redimir (Ao Vivo)
Com Humildade / Faz Falta / Tira Ela de Mim / Bobagens (Ao Vivo)
O Amor Não Tem Culpa / Insegurança / Faz Isso Não / Joguei a Toalha / Duvido (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 0x2d10901e570cf67cd3b47f9d05784dc3ba8ace7a7362c5d95b49259dbdb31c82. 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/BC0R92400001.