Nikos Tzoumas
type: MusicGroup
genre: laïko
popularity: 2
followers: 342
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc04adaeb3800428998437cc81962eb6bb39900c7948a4a7ade8abb297fc56936
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954055
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954055
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/43fd9f56-0314-47a8-b923-e4f9ffdc06e8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/43fd9f56-0314-47a8-b923-e4f9ffdc06e8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/43fd9f56-0314-47a8-b923-e4f9ffdc06e8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T05:51:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc04adaeb3800428998437cc81962eb6bb39900c7948a4a7ade8abb297fc56936","name":"Nikos Tzoumas","registered_at":"2026-06-16T13:14:20Z","symbol":"NIM1063005","token_address":"0xf6b4223ac9d02b55a30b16075c208aaa149020b6","type":"artist","uuid":"43fd9f56-0314-47a8-b923-e4f9ffdc06e8"}
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 0xc04adaeb3800428998437cc81962eb6bb39900c7948a4a7ade8abb297fc56936. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/43fd9f56-0314-47a8-b923-e4f9ffdc06e8.json and https://artists.proofprofile.net/proofs/artist/43fd9f56-0314-47a8-b923-e4f9ffdc06e8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xc04adaeb3800428998437cc81962eb6bb39900c7948a4a7ade8abb297fc56936","name":"Nikos Tzoumas","registered_at":"2026-06-16T13:14:20Z","symbol":"NIM1063005","token_address":"0xf6b4223ac9d02b55a30b16075c208aaa149020b6","type":"artist","uuid":"43fd9f56-0314-47a8-b923-e4f9ffdc06e8"}
album: Τα αδικαιολόγητα...
  type: MusicAlbum
  date published: 2014-07-12
album: Apogevmata Thlimmena
  type: MusicAlbum
  date published: 2019-08-05
album: Haraktiras
  type: MusicAlbum
  date published: 2021-04-06
album: Nikotini
  type: MusicAlbum
  date published: 2021-12-13
album: Cava
  type: MusicAlbum
  date published: 2022-08-03
album: Ela Gia Mia Nyxta
  type: MusicAlbum
  date published: 2023-07-14
album: Pente Pano, Pente Kato
  type: MusicAlbum
  date published: 2023-08-02
album: Stasou
  type: MusicAlbum
  date published: 2023-08-02
album: Medley Summer 2024
  type: MusicAlbum
  date published: 2024-06-18
album: To Karavi Hanete (O Kapten)
  type: MusicAlbum
  date published: 2024-11-27