Spiros Metaxas
type: MusicGroup
genre: laïko
popularity: 20
followers: 275
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x02207e019c64db5ae17e1a9b5a61b9834d8accd65cf01bf1f72683fc16f64d14
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953648
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953648
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/44c65bc3-87a8-40db-9296-997d4cfe76d6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/44c65bc3-87a8-40db-9296-997d4cfe76d6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/44c65bc3-87a8-40db-9296-997d4cfe76d6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T15:20:52Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x02207e019c64db5ae17e1a9b5a61b9834d8accd65cf01bf1f72683fc16f64d14","name":"Spiros Metaxas","registered_at":"2026-06-14T11:40:02Z","symbol":"NIM0441462","token_address":"0xed18a9204993fd5e5ec89cdb182d5cc091ead68c","type":"artist","uuid":"44c65bc3-87a8-40db-9296-997d4cfe76d6"}
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 0x02207e019c64db5ae17e1a9b5a61b9834d8accd65cf01bf1f72683fc16f64d14. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44c65bc3-87a8-40db-9296-997d4cfe76d6.json and https://artists.proofprofile.net/proofs/artist/44c65bc3-87a8-40db-9296-997d4cfe76d6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0x02207e019c64db5ae17e1a9b5a61b9834d8accd65cf01bf1f72683fc16f64d14","name":"Spiros Metaxas","registered_at":"2026-06-14T11:40:02Z","symbol":"NIM0441462","token_address":"0xed18a9204993fd5e5ec89cdb182d5cc091ead68c","type":"artist","uuid":"44c65bc3-87a8-40db-9296-997d4cfe76d6"}
album: Aformes (Radio Edit)
  type: MusicAlbum
  date published: 2011-07-25
album: Paizei Gia Mas (Kalokairi Mou)
  type: MusicAlbum
  date published: 2014-07-20
album: Omnia
  type: MusicAlbum
  date published: 2023-06-30
  track: Omnia
    type: MusicRecording
    duration: PT3M43S
    duration ms: 223170
    explicit: false
    by artist: Spiros Metaxas
    in album: Omnia
      type: MusicAlbum
      date published: 2023-06-30
    genre: laïko
    isrc code: US83Z2324294
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T07:59:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd0faed016ecde3c42f10be28470fad6f477cd32ff71b7cc7892df7ff98fcc251
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US83Z2324294
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 0xd0faed016ecde3c42f10be28470fad6f477cd32ff71b7cc7892df7ff98fcc251. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US83Z2324294.
      date published: 2026-07-05T10:01:46Z
    audio: Omnia
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 124.002
      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: 0.594
      additional property: Energy
        type: PropertyValue
        value: 0.709
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.016
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.724
      additional property: Liveness
        type: PropertyValue
        value: 0.086
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.167
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.152
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Omnia
  type: MusicAlbum
  date published: 2023-07-07
album: If You're A Star
  type: MusicAlbum
  date published: 2024-04-12