Slawomir Matz (Matzoo)
type: MusicGroup
popularity: 9
followers: 75
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5fd5d7460766117b4aadef4440d9218461703a1d2df5c955f734c35981c2c238
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953976
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953976
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2a918e20-e858-4372-ba54-d073a2f5b4c1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2a918e20-e858-4372-ba54-d073a2f5b4c1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2a918e20-e858-4372-ba54-d073a2f5b4c1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:55:36Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5fd5d7460766117b4aadef4440d9218461703a1d2df5c955f734c35981c2c238","name":"Slawomir Matz (Matzoo)","registered_at":"2026-06-16T04:40:13Z","symbol":"NIM0940303","token_address":"0xdf07e9f2416b50bed070b3a88c63c5c393acf850","type":"artist","uuid":"2a918e20-e858-4372-ba54-d073a2f5b4c1"}
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 0x5fd5d7460766117b4aadef4440d9218461703a1d2df5c955f734c35981c2c238. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2a918e20-e858-4372-ba54-d073a2f5b4c1.json and https://artists.proofprofile.net/proofs/artist/2a918e20-e858-4372-ba54-d073a2f5b4c1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x5fd5d7460766117b4aadef4440d9218461703a1d2df5c955f734c35981c2c238","name":"Slawomir Matz (Matzoo)","registered_at":"2026-06-16T04:40:13Z","symbol":"NIM0940303","token_address":"0xdf07e9f2416b50bed070b3a88c63c5c393acf850","type":"artist","uuid":"2a918e20-e858-4372-ba54-d073a2f5b4c1"}
album: Wschodni Wiatr
  type: MusicAlbum
  date published: 2023-05-02
album: The Beginning , Vol.1
  type: MusicAlbum
  date published: 2023-06-01
album: Kochaj Mnie Tak Samo
  type: MusicAlbum
  date published: 2023-07-19
album: Moje Dni
  type: MusicAlbum
  date published: 2023-08-07
album: Love Me the Same
  type: MusicAlbum
  date published: 2023-08-13
album: Zagubiony Anioł (Remix)
  type: MusicAlbum
  date published: 2023-09-13
album: Zagubiony Anioł
  type: MusicAlbum
  date published: 2023-09-13
album: Zostań
  type: MusicAlbum
  date published: 2023-11-13
album: Deszczem Otulona
  type: MusicAlbum
  date published: 2023-12-13
album: Dzięki
  type: MusicAlbum
  date published: 2024-01-13
album: Powiedz Jak
  type: MusicAlbum
  date published: 2024-07-01
album: Chwila
  type: MusicAlbum
  date published: 2024-08-01
album: Drzwi
  type: MusicAlbum
  date published: 2024-09-13
album: Agradecido
  type: MusicAlbum
  date published: 2024-10-13
album: Baby
  type: MusicAlbum
  date published: 2025-07-13
  track: Baby
    type: MusicRecording
    duration: PT2M59S
    duration ms: 179518
    explicit: false
    by artist: Slawomir Matz (Matzoo)
    in album: Baby
      type: MusicAlbum
      date published: 2025-07-13
    isrc code: TCAJU2535365
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T00:11:58+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6bbb0ac55f28a4bbe7cda8ceef6df44588d8ae3311e9df927d7da743edb6e190
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958802
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958802
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJU2535365
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T03:11:30Z
    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 0x6bbb0ac55f28a4bbe7cda8ceef6df44588d8ae3311e9df927d7da743edb6e190. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T03:11:30Z), 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/TCAJU2535365.
      date published: 2026-07-20T03:11:30Z
    audio: Baby
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 166.02
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.649
      additional property: Energy
        type: PropertyValue
        value: 0.548
      additional property: Speechiness
        type: PropertyValue
        value: 0.055
      additional property: Acousticness
        type: PropertyValue
        value: 0.307
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.208
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.597
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.169
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major