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 0xce1a5f9e2c5cbf946c9bb9b61e5a820cb494c4daf2f37666b8859e634153a64a. 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/b7011fc4-b590-4b9e-b079-3fd753767d29.json and https://artists.proofprofile.net/proofs/artist/b7011fc4-b590-4b9e-b079-3fd753767d29.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Deathloop: Déjà Vu (Original Trailer Soundtrack)
Deathloop: Down the Rabbit Hole (Original Trailer 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 0x94f9431002449ff1745da8493ca823625e3b66ae0855ab88942085dd7c529d16. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QMTH32100031.
Deathloop: Pitch Black (Original Trailer Soundtrack)
Deathloop: Déjà Vu (Goldenloop Remix) [Original Trailer Soundtrack]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc278a5afb769f7e5f96c85cb16c9397c2f60ce46fe955276299a4d6645f4e5. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:18:35Z), 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/QMTH32200059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ead74ae3315fe50d1b08c3bc4374dea68c0927880b201e2d16e4784d404a92b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZHN82385218.
The Struggle Mixtape Vol 2 Instrumentals