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 0xa2da4352da124198a775128dbb580b0d4b4ab6f5352c2768f6b96e6f7b525d8e. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/07b6a21d-4f27-4d56-9f0c-5d323e28e7a3.json and https://artists.proofprofile.net/proofs/artist/07b6a21d-4f27-4d56-9f0c-5d323e28e7a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Forza Motorsport! a Soundtrack Inspired by Video Game Series
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 0x6f6db6492a4edb0cdcac8223ae4827aa95b1fefe4739935dc6b9977316d39230. Chain 2 (Bitcoin): anchored in block 958572 (2026-07-18T15:47:37Z), 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/QMVRR1538702.
I Feel the Need, the Need for Speed: A Soundtrack for Racing Car Video Games
Ultimate Car Racing Video Game Soundtrack Collection
American Football Video Game Soundtrack 17
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b45aec3c8f89d2a5510ee1a26d18ceb4c065b41f3bda4e32a88216c05b3785. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QMVRR1635709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccbe0515d3d93e863195bdeddd57c496ec2d1e8ec3ba52a4b96c8a429162c2c1. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QMVRR1636482.
Football 2018 (Music Inspired by the Video Game)
Friday the 13th (Music Inspired by the Video Game)
Soundtrack Inspired by the Game Fortnite