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 0x3170ca258129931dd7055d226bed245dcfae18b620744c7f58e5bcfd440534bd. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e79feb26-5807-4493-9aa3-39c17ad54e0b.json and https://artists.proofprofile.net/proofs/artist/e79feb26-5807-4493-9aa3-39c17ad54e0b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
City of Stars (La La Land Original Soundtrack) (aus "The Voice of Germany 2023") [Live]
A Million Dreams (aus "The Voice of Germany 2023") [Live]
A Million Dreams (aus "The Voice of Germany 2023") - Live
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 0xd511575b6f55697edbb1f698732cabd5899b24d18ffe02ff0f6322f281973d87. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DETO32300558.
Fix You (aus "The Voice of Germany 2023") [Live]
Fix You (aus "The Voice of Germany 2023") - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd70fd4dfed5274f084b687bfeb995e6cf823918e5fb35bce616ef79c402725. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-20T12:08:32Z), 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/DETO32300626.