Guy Sebastian
type: MusicGroup
description: 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
popularity: 5
followers: 40
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcd42fa354ca7f101c6af347576c8fdb2691cd04f706de6bb059b29d9e3629d76
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8e9ce309-c99d-44bd-8427-5ff45b8762a1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8e9ce309-c99d-44bd-8427-5ff45b8762a1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8e9ce309-c99d-44bd-8427-5ff45b8762a1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcd42fa354ca7f101c6af347576c8fdb2691cd04f706de6bb059b29d9e3629d76","name":"Guy Sebastian","registered_at":"2026-06-17T15:26:51Z","symbol":"NIM1438070","token_address":"0x770f05e9d318fa2cbb1b6af37970d2dc2043c704","type":"artist","uuid":"8e9ce309-c99d-44bd-8427-5ff45b8762a1"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: 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).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xcd42fa354ca7f101c6af347576c8fdb2691cd04f706de6bb059b29d9e3629d76","name":"Guy Sebastian","registered_at":"2026-06-17T15:26:51Z","symbol":"NIM1438070","token_address":"0x770f05e9d318fa2cbb1b6af37970d2dc2043c704","type":"artist","uuid":"8e9ce309-c99d-44bd-8427-5ff45b8762a1"}