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 0xeec38f79b906722e60f31577a14abd2fb12157136dddf74e9240e704e3a16060. 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/8c6f0e70-9f2f-4faa-a8b6-dafd2894cd60.json and https://artists.proofprofile.net/proofs/artist/8c6f0e70-9f2f-4faa-a8b6-dafd2894cd60.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Van Der Valk: Series Two (Music from the Original Tv Series)
Wolf (Original Motion Picture Soundtrack)
Ninjas Down the Street (Original Motion Picture Soundtrack)
Everything of Value (Original Television Soundtrack)
Pirates Down the Street (Original Motion Picture Soundtrack)
Van Der Valk: Series One (Music from the Original TV Series)
Bloody Marie (Original Motion Picture Soundtrack
Wild (Original Motion Picture Soundtrack)
Dummie de Mummie en de Tombe van Achnetoet
The Cloudmaker (Original Motion Picture Soundtrack)