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 0x69a3ed4922ed3bce99c1d2505a1331185ed3d4daf3068e01a14f84a59c6c8d8f. Chain 2 (Bitcoin): anchored in block 953968 (2026-06-16T16:01:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/28fb8f6c-982d-4689-a8a0-ba11e73bdfa8.json and https://artists.proofprofile.net/proofs/artist/28fb8f6c-982d-4689-a8a0-ba11e73bdfa8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
It Has to Be You (Original Motion Picture Soundtrack) - EP
Flesh and Blood (Original Motion Picture Soundtrack)
Let's Be Evil (Original Motion Picture Soundtrack)
Disrupted (Original Motion Picture Soundtrack)
Princess of the Row (Original Motion Picture Soundtrack)
Buried: The 1982 Alpine Meadows Avalanche (Original Motion Picture Soundtrack)
Missing (Original Motion Picture Soundtrack)
Luden (Amazon Original Series Soundtrack)
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 0x26a5d6a9b618e9a00e1d5f461541ee3600b80c9ba2c31bd31e24ea452c15469c. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/USLS52337720.