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 0xc33493bafbe9df32744bc02d610cc82001840a645dd0727774234c22e635f9d4. 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/52f16538-4c16-41fa-9cac-03747669d1a0.json and https://artists.proofprofile.net/proofs/artist/52f16538-4c16-41fa-9cac-03747669d1a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Doctor John Pt. 1 (Original Television 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 0x64ccfe60c9ae754b189acd09e2b3279ce280341b4f9f9bca89ee094b7e90efc2. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/KSA002100208.
UNDERCOVER (Original Television Soundtrack) Pt.7
UNDERCOVER, Pt. 7 (Original Television Soundtrack)
The Empire (Original Television Soundtrack, Pt. 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a0be1f73611ad5bf4145432acc39d0b9bc19a5867e5236a915424332f85cd5. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:19:48Z), 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/ZZA0P2516986.