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 0xcd6d348e5925c5b5d8d3c514418b80cc11debe012bc7fba59e8fa4d0a127379d. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e80cc1cb-426e-4c17-841e-dca3ad86beae.json and https://artists.proofprofile.net/proofs/artist/e80cc1cb-426e-4c17-841e-dca3ad86beae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Set dos Cornos (feat. DJ Léo da Dz7, DJ MAGRONES, DJ MENOR JM & DJ RAFA DA VM)
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 0x5cd03af6068ae5be5c399d6b9d66441cb06ec78d31c7ec1903d2826658f82679. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BCQ7H2200001.
Rock, um Barulinho Que é Bolado, la Vai Pirocadão
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa45623e2b636c2ccd8be45b2aa15bd377a51fece0a761418381b30389f80e1. 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/QZEQU2147708.
PRÓXIMA ESTAÇÃO SACOMÃ - BEM VINDO A HELIÓPOLIS
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e2a2f247e1e85a75cfa28f136392a716ca261820a3d93f9065d32f77138d5c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QM3DF2122127.