Katerina Lazaridou
type: MusicGroup
popularity: 4
followers: 585
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x135863710179c75f6150248776a4e1430b5b25f5e29540ed28e4c5ead152e3b8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953871
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953871
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0738f8cb-1231-4083-ad42-5b0a4582e0ca.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0738f8cb-1231-4083-ad42-5b0a4582e0ca.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0738f8cb-1231-4083-ad42-5b0a4582e0ca
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T01:46:03Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x135863710179c75f6150248776a4e1430b5b25f5e29540ed28e4c5ead152e3b8","name":"Katerina Lazaridou","registered_at":"2026-06-15T15:56:00Z","symbol":"NIM0757900","token_address":"0x66558a3650e615dbf65b633092eb068313b327ae","type":"artist","uuid":"0738f8cb-1231-4083-ad42-5b0a4582e0ca"}
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 0x135863710179c75f6150248776a4e1430b5b25f5e29540ed28e4c5ead152e3b8. Chain 2 (Bitcoin): anchored in block 953871 (2026-06-16T01:46:03Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0738f8cb-1231-4083-ad42-5b0a4582e0ca.json and https://artists.proofprofile.net/proofs/artist/0738f8cb-1231-4083-ad42-5b0a4582e0ca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T01:46:03Z
  text: {"copyright_id":"0x135863710179c75f6150248776a4e1430b5b25f5e29540ed28e4c5ead152e3b8","name":"Katerina Lazaridou","registered_at":"2026-06-15T15:56:00Z","symbol":"NIM0757900","token_address":"0x66558a3650e615dbf65b633092eb068313b327ae","type":"artist","uuid":"0738f8cb-1231-4083-ad42-5b0a4582e0ca"}
album: Thelo Na Ksero
  type: MusicAlbum
  date published: 2023-07-05
album: Glyko Narkotiko
  type: MusicAlbum
  date published: 2024-06-25