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 0xb7f7d50ed824ab682761d5b05d5cf86327aa5c9f60284e9d6fcd640bf7ea0cc0. Chain 2 (Bitcoin): anchored in block 954047 (2026-06-17T04:56:08Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/41725a14-ec7e-4fbc-853e-04cbb2dd93c7.json and https://artists.proofprofile.net/proofs/artist/41725a14-ec7e-4fbc-853e-04cbb2dd93c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tempo de Conversão - Cantos litúrgicos para Quaresma
Salmo 50 (51) - Misericórdia, Ó Senhor, Pois Pecamos.
Salmo 90 - Em Minhas Dores, Ó Senhor, Permanecei Junto de Mim!
Salmo 26 - O Senhor é minha luz e salvação
Salmo 102 - O Senhor é Bondoso e Compassivo
Kyrie Eleison - Ato Penitencial - Fórmula 2 Quaresma
Salmo 125 - Maravilhas fez conosco o Senhor, exultemos de alegria.
Salmo 21 - Meu Deus, Meu Deus, porque me abandonastes
Vem Espírito de Deus - Músicas para grupos de oração - Vol.1
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 0x9a315c490c813de19736a230e64e04ab678c7545b89c72723f23596b2052dd60. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/CAGOO2564604.