Stavros Kougioumtzis
type: MusicGroup
genre: entehno
genre: laïko
popularity: 11
followers: 1392
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0be0e8fcde69e4c12507298ea7f8023ee06eadb20cfc632492a3e770f6cf7108
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953674
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953674
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5c04d4f9-a9bf-4647-b21d-2a5dc798b8d0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5c04d4f9-a9bf-4647-b21d-2a5dc798b8d0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5c04d4f9-a9bf-4647-b21d-2a5dc798b8d0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T19:07:16Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0be0e8fcde69e4c12507298ea7f8023ee06eadb20cfc632492a3e770f6cf7108","name":"Stavros Kougioumtzis","registered_at":"2026-06-14T14:03:26Z","symbol":"NIM0475682","token_address":"0xe98b56af2de1eb584cbaca6ab422f2d933e35703","type":"artist","uuid":"5c04d4f9-a9bf-4647-b21d-2a5dc798b8d0"}
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 0x0be0e8fcde69e4c12507298ea7f8023ee06eadb20cfc632492a3e770f6cf7108. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5c04d4f9-a9bf-4647-b21d-2a5dc798b8d0.json and https://artists.proofprofile.net/proofs/artist/5c04d4f9-a9bf-4647-b21d-2a5dc798b8d0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T19:07:16Z
  text: {"copyright_id":"0x0be0e8fcde69e4c12507298ea7f8023ee06eadb20cfc632492a3e770f6cf7108","name":"Stavros Kougioumtzis","registered_at":"2026-06-14T14:03:26Z","symbol":"NIM0475682","token_address":"0xe98b56af2de1eb584cbaca6ab422f2d933e35703","type":"artist","uuid":"5c04d4f9-a9bf-4647-b21d-2a5dc798b8d0"}
album: Tragoudia Tou Kerou Mas
  type: MusicAlbum
  date published: 1977-04-18
album: 10 Hronia Tragoudi
  type: MusicAlbum
  date published: 1979-10-08
  track: Natane To 21
    type: MusicRecording
    duration: PT3M9S
    duration ms: 189880
    explicit: false
    by artist: Stavros Kougioumtzis
    in album: 10 Hronia Tragoudi
      type: MusicAlbum
      date published: 1979-10-08
    genre: entehno
    genre: laïko
    isrc code: GRE016900151
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-02T23:06:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf39ce96fc45ffc741694aaf0403ee2a6f4a28de65c95c9c34064f41b7497e776
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956420
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956420
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRE016900151
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T00:42:11Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39ce96fc45ffc741694aaf0403ee2a6f4a28de65c95c9c34064f41b7497e776. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRE016900151.
      date published: 2026-07-03T00:42:11Z
    audio: Natane To 21
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 126.601
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.591
      additional property: Energy
        type: PropertyValue
        value: 0.419
      additional property: Speechiness
        type: PropertyValue
        value: 0.045
      additional property: Acousticness
        type: PropertyValue
        value: 0.736
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.072
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.788
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.157
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Ta Megala Tragoudia
  type: MusicAlbum
  date published: 1994-04-27
album: Ki Arxizo Na Sou Tragoudo
  type: MusicAlbum
  date published: 2025-06-03