Alexandros Tsouvelas
type: MusicGroup
genre: laïko
popularity: 7
followers: 1320
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5b38fed097e7acc5972558f64f454c4573ca764d512d7901d44080609778fc7f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954031
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954031
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/39c55238-fd21-412b-bfb9-ae64e3bdbe4b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/39c55238-fd21-412b-bfb9-ae64e3bdbe4b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/39c55238-fd21-412b-bfb9-ae64e3bdbe4b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T01:43:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5b38fed097e7acc5972558f64f454c4573ca764d512d7901d44080609778fc7f","name":"Alexandros Tsouvelas","registered_at":"2026-06-16T10:03:07Z","symbol":"NIM1017403","token_address":"0x9a11c934cc011869a3af117a624c89c806e05527","type":"artist","uuid":"39c55238-fd21-412b-bfb9-ae64e3bdbe4b"}
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 0x5b38fed097e7acc5972558f64f454c4573ca764d512d7901d44080609778fc7f. Chain 2 (Bitcoin): anchored in block 954031 (2026-06-17T01:43:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/39c55238-fd21-412b-bfb9-ae64e3bdbe4b.json and https://artists.proofprofile.net/proofs/artist/39c55238-fd21-412b-bfb9-ae64e3bdbe4b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T01:43:23Z
  text: {"copyright_id":"0x5b38fed097e7acc5972558f64f454c4573ca764d512d7901d44080609778fc7f","name":"Alexandros Tsouvelas","registered_at":"2026-06-16T10:03:07Z","symbol":"NIM1017403","token_address":"0x9a11c934cc011869a3af117a624c89c806e05527","type":"artist","uuid":"39c55238-fd21-412b-bfb9-ae64e3bdbe4b"}
album: Psaxno Mia Gynaika (H Provatina)
  type: MusicAlbum
  date published: 2023-12-04
album: Ki ayto to kalokairi
  type: MusicAlbum
  date published: 2025-08-04
  track: Ki ayto to kalokairi
    type: MusicRecording
    duration: PT3M44S
    duration ms: 224139
    explicit: false
    by artist: Alexandros Tsouvelas
    in album: Ki ayto to kalokairi
      type: MusicAlbum
      date published: 2025-08-04
    genre: laïko
    isrc code: QZWFQ2571584
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-02T22:18:46+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x01b85818357a87e04631a98cb65455eecef74a9bade576e1711482bece6e81d9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956422
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956422
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFQ2571584
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T01:01:38Z
    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 0x01b85818357a87e04631a98cb65455eecef74a9bade576e1711482bece6e81d9. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZWFQ2571584.
      date published: 2026-07-03T01:01:38Z
    audio: Ki ayto to kalokairi
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 127.968
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.781
      additional property: Energy
        type: PropertyValue
        value: 0.823
      additional property: Speechiness
        type: PropertyValue
        value: 0.05
      additional property: Acousticness
        type: PropertyValue
        value: 0.018
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.035
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.515
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.565
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor