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 0x3b254d7b042a148c7b96841659f503acbc4d0b0d80ebed8dbf3ca1865a3adb95. Chain 2 (Bitcoin): anchored in block 954134 (2026-06-17T19:41:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e3beeaf-0895-4d1a-96f8-b2c5e9ed99ba.json and https://artists.proofprofile.net/proofs/artist/7e3beeaf-0895-4d1a-96f8-b2c5e9ed99ba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Californight (Original Short Film Soundtrack)
Into The Dirt (Original Short Film Soundtrack)
Spirit's Journey (Original Short Film Soundtrack)
Breathe (Original Short Film Soundtrack)
Cherry (Original Motion Picture Soundtrack)
Phosphore (Musique originale du court-métrage)
Détresse (Musique Originale du Court-Métrage)
Marie-Antoinette : Premiers pas à la cour (Bande originale de la série)
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 0xa39edfbcc0842d8cc542e7b354a7f5b976a5309a5b80e63c06ebd559cf34f69d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR3X62211014.