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 0x320c3aacd7d8cd8fd1ac0932d738d5f4c9b52bb003fdd64870de5bce77535ef2. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/74ce6110-b293-4527-9d6b-eba6ed100283.json and https://artists.proofprofile.net/proofs/artist/74ce6110-b293-4527-9d6b-eba6ed100283.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
MTG (MOÇA BONITA) [DJ GSL & Dj Denis Beagá Remix]
MTG (BORBULHAS DE AMOR) [Loirin prod & Mc John Efi Remix]
MTG (BORBULHAS DE AMOR) - Loirin prod & Mc John Efi Remix
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 0x280dc5c2fab556330b4a00c41b36502256174055535ac026d0b031dc541e4f44. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:47:49Z), 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/QZRP52479455.
SER CRUZEIRO É BOM DEMAIS (Itallo ZK Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7cc3580a82acfd08d126776ae344288828600e4fb906da1e41fcd556fe0356. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BXIV82490811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5487937844ff88dcfc6bd2a9369fa78a3f7192f5a3dc66996c5ca1bfb3915db1. 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/BCA2A2500020.