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 0xb81de96a47a85ae8996c20b49742091e1d17522e598776edb1a4d086294d7ef9. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dda3969c-4968-4e0c-9fdb-58c84eceffa6.json and https://artists.proofprofile.net/proofs/artist/dda3969c-4968-4e0c-9fdb-58c84eceffa6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
De São Paulo a Belém / Peão Apaixonado / Se a Casa Cair
Chora Chora / Tô Vendendo Beijo / Não Desligue o Telefone
Pedaço de Minha Vida - Quebradas da Noite - Cama Fria
Pot Pourri - Bijuteria, Ausência, Retrato de Mãe
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 0x1ff171413b1be5d9f4b593e8f95d6115df50cb2418ea3bcef9b1fc71aa331921. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZK6G2227950.
Pot Pourri (Olha o Que o Amor Me Faz, Sem Radar, Por Te Amar Assim)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24569d74ab826cbe074566864df2204aebf9bb78ba9627e0d1a5bcb25839b353. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USCGJ2109689.
Preciso Ser Amado / Sem Medo de Ser Feliz / Mistérios
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a0ab1bc9b46901353c3afece9376dc24daf59763a0c2eedf1c36483f38d6ce. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USCGJ2109692.