George Constantinou
type: MusicGroup
description: Sir George Constantinou OBE (10 May 1930 – 16 December 2008) was a Papua New Guinean businessman and builder. Constantinou, who was born in Cyprus, immigrated to Papua New Guinea in the 1950s. He was
popularity: 2
followers: 23
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x240458be8a608710745c03c21e890f6c3c28b54e06c23090922fd9470f074877
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953932
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953932
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1ef57eaf-8429-4a3b-9549-24a01912a015.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1ef57eaf-8429-4a3b-9549-24a01912a015.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1ef57eaf-8429-4a3b-9549-24a01912a015
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T11:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x240458be8a608710745c03c21e890f6c3c28b54e06c23090922fd9470f074877","name":"George Constantinou","registered_at":"2026-06-16T00:19:40Z","symbol":"NIM0878062","token_address":"0xe192215c1007e255266a1838c4c582dfe33347dc","type":"artist","uuid":"1ef57eaf-8429-4a3b-9549-24a01912a015"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x240458be8a608710745c03c21e890f6c3c28b54e06c23090922fd9470f074877. Chain 2 (Bitcoin): anchored in block 953932 (2026-06-16T11:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1ef57eaf-8429-4a3b-9549-24a01912a015.json and https://artists.proofprofile.net/proofs/artist/1ef57eaf-8429-4a3b-9549-24a01912a015.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T11:10:43Z
  text: {"copyright_id":"0x240458be8a608710745c03c21e890f6c3c28b54e06c23090922fd9470f074877","name":"George Constantinou","registered_at":"2026-06-16T00:19:40Z","symbol":"NIM0878062","token_address":"0xe192215c1007e255266a1838c4c582dfe33347dc","type":"artist","uuid":"1ef57eaf-8429-4a3b-9549-24a01912a015"}