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 0x75c4ad923031ab5d1fb67016eff3496af1ff9c28c7dbbb8940e6166b4105efb0. 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/eb69d867-3d60-41db-bdd6-4fbad48b8699.json and https://artists.proofprofile.net/proofs/artist/eb69d867-3d60-41db-bdd6-4fbad48b8699.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sorriso Resplandecente (Opening de "Dragon Ball GT")
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 0x6479f66b7b59657d02a42c5639cb7a45dbbebc7ce0b464eba1a0098af5dcbe07. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:27:43Z), 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/USE831593716.
Lá Vou Eu (Trilha Sonora de "Irmão Urso")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42203ffd957c956b583dd3b7006829773ae0c490e993e57aa2f7fed2bc9f2d41. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USE831593717.
Teen Titans (Abertura de Jovens Titãs em Português)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409ffef453707b571ec63876d29f43d2a049bb67ffa0b7058f8b7d29a5de9160. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZPJ32137823.