Roy Sætre Khantatat (; born 12 March 1970), commonly known as Roy Khan, is a Norwegian singer and songwriter. He is the lead singer for the progressive metal band Conception and the former lead vocali
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 0x452f94f6219ebcc930b6461f8d7c28745d9612ca1d9a0783911a8f08c61b7777. 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/e484a93e-fe52-410c-89fb-fd51a2429b0a.json and https://artists.proofprofile.net/proofs/artist/e484a93e-fe52-410c-89fb-fd51a2429b0a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).