Kostas Kaziakouras
type: MusicGroup
genre: laïko
popularity: 4
followers: 108
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3447085ac2ed7a6737144a61d2fddbe675404bb0160ea7b664e0cdec622c6797
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954039
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954039
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3e100c5e-e5ca-42ca-b002-293b66594bfc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3e100c5e-e5ca-42ca-b002-293b66594bfc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3e100c5e-e5ca-42ca-b002-293b66594bfc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T03:00:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3447085ac2ed7a6737144a61d2fddbe675404bb0160ea7b664e0cdec622c6797","name":"Kostas Kaziakouras","registered_at":"2026-06-16T11:11:27Z","symbol":"NIM1033704","token_address":"0x93cf049d55c3cb1bb79a2ec6bca9a28483be9c65","type":"artist","uuid":"3e100c5e-e5ca-42ca-b002-293b66594bfc"}
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 0x3447085ac2ed7a6737144a61d2fddbe675404bb0160ea7b664e0cdec622c6797. Chain 2 (Bitcoin): anchored in block 954039 (2026-06-17T03:00:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3e100c5e-e5ca-42ca-b002-293b66594bfc.json and https://artists.proofprofile.net/proofs/artist/3e100c5e-e5ca-42ca-b002-293b66594bfc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T03:00:41Z
  text: {"copyright_id":"0x3447085ac2ed7a6737144a61d2fddbe675404bb0160ea7b664e0cdec622c6797","name":"Kostas Kaziakouras","registered_at":"2026-06-16T11:11:27Z","symbol":"NIM1033704","token_address":"0x93cf049d55c3cb1bb79a2ec6bca9a28483be9c65","type":"artist","uuid":"3e100c5e-e5ca-42ca-b002-293b66594bfc"}