Nikos Christopoulos
type: MusicGroup
genre: entehno
popularity: 3
followers: 261
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x30e4fb23e44a2750eea45c09901ac81223b53c317a795178b4a9f2728d3b0f52
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/af89bff8-246b-43f0-b05b-a24a6796ada8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/af89bff8-246b-43f0-b05b-a24a6796ada8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/af89bff8-246b-43f0-b05b-a24a6796ada8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x30e4fb23e44a2750eea45c09901ac81223b53c317a795178b4a9f2728d3b0f52","name":"Nikos Christopoulos","registered_at":"2026-06-20T11:28:20Z","symbol":"NIM1601931","token_address":"0x81ea780bb3ebd97e454b869393e005d7cf5ebcc8","type":"artist","uuid":"af89bff8-246b-43f0-b05b-a24a6796ada8"}
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 0x30e4fb23e44a2750eea45c09901ac81223b53c317a795178b4a9f2728d3b0f52. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/af89bff8-246b-43f0-b05b-a24a6796ada8.json and https://artists.proofprofile.net/proofs/artist/af89bff8-246b-43f0-b05b-a24a6796ada8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x30e4fb23e44a2750eea45c09901ac81223b53c317a795178b4a9f2728d3b0f52","name":"Nikos Christopoulos","registered_at":"2026-06-20T11:28:20Z","symbol":"NIM1601931","token_address":"0x81ea780bb3ebd97e454b869393e005d7cf5ebcc8","type":"artist","uuid":"af89bff8-246b-43f0-b05b-a24a6796ada8"}
album: Parallilo Sympan
  type: MusicAlbum
  date published: 2021-05-19
album: Ta Piso Balkonia
  type: MusicAlbum
  date published: 2023-12-15
album: Endiamesos Stathmos
  type: MusicAlbum
  date published: 2024-01-12