Stelios Constantas
type: MusicGroup
description: REDIRECT Cyprus in the Eurovision Song Contest 2003 Category:21st-century Cypriot male singers Category:Eurovision Song Contest entrants
popularity: 3
followers: 56
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x340fc078cc8ba8c150a9e08f46ba75836d607e2712efae41fa7e47809ae76e14
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954134
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954134
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7faeef1e-88ee-4cd4-9962-9dbe575682fb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7faeef1e-88ee-4cd4-9962-9dbe575682fb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7faeef1e-88ee-4cd4-9962-9dbe575682fb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:41:05Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x340fc078cc8ba8c150a9e08f46ba75836d607e2712efae41fa7e47809ae76e14","name":"Stelios Constantas","registered_at":"2026-06-17T10:05:03Z","symbol":"NIM1361395","token_address":"0x17faf648aa045af7f084de5c57e135e04ca39c8f","type":"artist","uuid":"7faeef1e-88ee-4cd4-9962-9dbe575682fb"}
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 0x340fc078cc8ba8c150a9e08f46ba75836d607e2712efae41fa7e47809ae76e14. Chain 2 (Bitcoin): anchored in block 954134 (2026-06-17T19:41:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7faeef1e-88ee-4cd4-9962-9dbe575682fb.json and https://artists.proofprofile.net/proofs/artist/7faeef1e-88ee-4cd4-9962-9dbe575682fb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:41:05Z
  text: {"copyright_id":"0x340fc078cc8ba8c150a9e08f46ba75836d607e2712efae41fa7e47809ae76e14","name":"Stelios Constantas","registered_at":"2026-06-17T10:05:03Z","symbol":"NIM1361395","token_address":"0x17faf648aa045af7f084de5c57e135e04ca39c8f","type":"artist","uuid":"7faeef1e-88ee-4cd4-9962-9dbe575682fb"}
album: Me Taxideveis
  type: MusicAlbum
  date published: 2002
album: Feeling Alive
  type: MusicAlbum
  date published: 2003
  track: Feeling Alive - Eurovision Version
    type: MusicRecording
    duration: PT2M55S
    duration ms: 175133
    explicit: false
    by artist: Stelios Constantas
    in album: Feeling Alive
      type: MusicAlbum
      date published: 2003
    isrc code: FRX761591559
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T05:59:27+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1fdd42afae83078ecaf549b99ae1400c33779a41b03a8c031b54c56cbc2a39bb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958506
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958506
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX761591559
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T06:14:51Z
    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 0x1fdd42afae83078ecaf549b99ae1400c33779a41b03a8c031b54c56cbc2a39bb. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/FRX761591559.
      date published: 2026-07-18T06:14:51Z
    audio: Feeling Alive - Eurovision Version
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.944
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.701
      additional property: Energy
        type: PropertyValue
        value: 0.808
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.09
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.106
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.718
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.06
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor