1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x2827f2db3074cd99a069a0b1cd0cdd3f9d627f65795ccf877c50e31a7e82600c. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8f905d89-422c-46cf-81a1-1d95cea3d3aa.json and https://artists.proofprofile.net/proofs/artist/8f905d89-422c-46cf-81a1-1d95cea3d3aa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hinterland / y Gwyll (Music from the Original TV Series)
Hinterland, Series Two (Original Soundtrack)
Hidden: Series One (Original Soundtrack)
Steel Country / A Dark Place (Original Motion Picture Soundtrack)
Bregus (Music from the Original TV Series)
Hidden: Series Two (Music from the Original TV Series)
Tree On A Hill / Pren Ar Y Bryn (Music from the Original TV Series)
Hinterland / Y Gwyll Series 3 (Original Soundtrack)