Guy Theodore Sebastian (born 26 October 1981) is an Australian singer, songwriter and record producer who rose to fame after winning the first season of Australian Idol, in 2003. Born in Malaysia and
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 0xcd42fa354ca7f101c6af347576c8fdb2691cd04f706de6bb059b29d9e3629d76. 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/8e9ce309-c99d-44bd-8427-5ff45b8762a1.json and https://artists.proofprofile.net/proofs/artist/8e9ce309-c99d-44bd-8427-5ff45b8762a1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).