Kuba Wasylkowski
type: MusicGroup
popularity: 2
followers: 23
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe8ba663e2ce598f1940752f3d6acf9f1324f98f662db11d5573f462e0c8359e2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954513
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a0978c2c-d7fd-4f4c-8cd7-57469c9e5f40.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a0978c2c-d7fd-4f4c-8cd7-57469c9e5f40.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a0978c2c-d7fd-4f4c-8cd7-57469c9e5f40
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T06:31:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe8ba663e2ce598f1940752f3d6acf9f1324f98f662db11d5573f462e0c8359e2","name":"Kuba Wasylkowski","registered_at":"2026-06-20T05:14:35Z","symbol":"NIM1526461","token_address":"0xbe423a11c397bd277f5dfe7421540324f4e4a70b","type":"artist","uuid":"a0978c2c-d7fd-4f4c-8cd7-57469c9e5f40"}
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 0xe8ba663e2ce598f1940752f3d6acf9f1324f98f662db11d5573f462e0c8359e2. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a0978c2c-d7fd-4f4c-8cd7-57469c9e5f40.json and https://artists.proofprofile.net/proofs/artist/a0978c2c-d7fd-4f4c-8cd7-57469c9e5f40.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T06:31:18Z
  text: {"copyright_id":"0xe8ba663e2ce598f1940752f3d6acf9f1324f98f662db11d5573f462e0c8359e2","name":"Kuba Wasylkowski","registered_at":"2026-06-20T05:14:35Z","symbol":"NIM1526461","token_address":"0xbe423a11c397bd277f5dfe7421540324f4e4a70b","type":"artist","uuid":"a0978c2c-d7fd-4f4c-8cd7-57469c9e5f40"}
album: biały szum
  type: MusicAlbum
  date published: 2025-03-14
album: wannolot
  type: MusicAlbum
  date published: 2025-05-30
album: tinder
  type: MusicAlbum
  date published: 2025-07-11
album: babki i łopatki
  type: MusicAlbum
  date published: 2025-10-24
  track: babki i łopatki
    type: MusicRecording
    duration: PT4M15S
    duration ms: 255882
    explicit: true
    by artist: Kuba Wasylkowski
    in album: babki i łopatki
      type: MusicAlbum
      date published: 2025-10-24
    isrc code: PLA812580148
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T00:35:40+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x89549b0a231f532ac5f38dd530605fdfdb0f0db95b53fb2f44efe89af8ff4b0b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958341
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958341
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLA812580148
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T03:37:50Z
    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 0x89549b0a231f532ac5f38dd530605fdfdb0f0db95b53fb2f44efe89af8ff4b0b. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:37:50Z), 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/PLA812580148.
      date published: 2026-07-17T03:37:50Z
    audio: babki i łopatki
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 170.682
      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: 0.571
      additional property: Energy
        type: PropertyValue
        value: 0.836
      additional property: Speechiness
        type: PropertyValue
        value: 0.243
      additional property: Acousticness
        type: PropertyValue
        value: 0.078
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.142
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.416
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.394
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor