Mr. Kowalsky
type: MusicGroup
genre: reggae rock
genre: rocksteady
genre: ska
genre: ska punk
genre: surf rock
popularity: 2
followers: 288
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x7d7fdc8f406ae4b40e4aa531a9c7a33be9ef03fea58f8655416606a082642269
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a22bf950-07dc-47e0-bb92-45671ba316ae.ots
additional property: OTSRecordURL
  type: PropertyValue
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7fdc8f406ae4b40e4aa531a9c7a33be9ef03fea58f8655416606a082642269. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a22bf950-07dc-47e0-bb92-45671ba316ae.json and https://artists.proofprofile.net/proofs/artist/a22bf950-07dc-47e0-bb92-45671ba316ae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0x7d7fdc8f406ae4b40e4aa531a9c7a33be9ef03fea58f8655416606a082642269","name":"Mr. Kowalsky","registered_at":"2026-06-20T06:09:02Z","symbol":"NIM1535705","token_address":"0xc23c3835c9ed5633d13329faf29eabe73834ffb6","type":"artist","uuid":"a22bf950-07dc-47e0-bb92-45671ba316ae"}
album: Rocker Soul Compilation (2006-2012)
  type: MusicAlbum
  date published: 2006-03-05
album: Surf Rock Reggae
  type: MusicAlbum
  date published: 2015-09-10
album: Surf Rock Reggae
  type: MusicAlbum
  date published: 2015-09-10
album: California to Kingston
  type: MusicAlbum
  date published: 2019-05-11
album: Palmera
  type: MusicAlbum
  date published: 2019-07-19
album: Jack's Hill
  type: MusicAlbum
  date published: 2019-11-01
album: Everybody Nice!
  type: MusicAlbum
  date published: 2020-12-04
album: Rockin’ in XMAS Time
  type: MusicAlbum
  date published: 2021-12-10
album: Hot and Sweaty
  type: MusicAlbum
  date published: 2024-03-22
album: Hot and Sweaty (DUB version)
  type: MusicAlbum
  date published: 2024-07-26
album: The Boys of Summer
  type: MusicAlbum
  date published: 2025-05-09
  track: The Boys of Summer
    type: MusicRecording
    duration: PT4M6S
    duration ms: 246760
    explicit: false
    by artist: Mr. Kowalsky
    in album: The Boys of Summer
      type: MusicAlbum
      date published: 2025-05-09
    genre: reggae rock
    genre: rocksteady
    genre: ska
    genre: ska punk
    genre: surf rock
    isrc code: SEYOK2509769
    additional property: CopyrightID
    additional property: CopyrightStatus
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    additional property: CopyrightRegisteredAt
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    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x982f650487aef572653f6027aadb6d33928acfa0de1941fd55b1af5a3e87b319
    additional property: OTSHash
    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957779
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEYOK2509769
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-13T00:19:08Z
    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 0x982f650487aef572653f6027aadb6d33928acfa0de1941fd55b1af5a3e87b319. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/SEYOK2509769.
      date published: 2026-07-13T00:19:08Z
    audio: The Boys of Summer
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 142.018
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.747
      additional property: Energy
        type: PropertyValue
        value: 0.63
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.124
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.087
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.885
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.723
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major