Mr PC Ska Jazz
type: MusicGroup
genre: rocksteady
genre: ska
popularity: 3
followers: 400
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf4bec85613abc8ce88eb9319ce0ca3deab6ed98d1c8cd849beda4e27f6699dd1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eed7a038-7fb3-4f4a-ae6c-347854931382.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eed7a038-7fb3-4f4a-ae6c-347854931382.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/eed7a038-7fb3-4f4a-ae6c-347854931382
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf4bec85613abc8ce88eb9319ce0ca3deab6ed98d1c8cd849beda4e27f6699dd1","name":"Mr PC Ska Jazz","registered_at":"2026-06-21T12:08:34Z","symbol":"NIM1918804","token_address":"0x37d9fbeeb0660fbdd2027a6023b66af6c536fc30","type":"artist","uuid":"eed7a038-7fb3-4f4a-ae6c-347854931382"}
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 0xf4bec85613abc8ce88eb9319ce0ca3deab6ed98d1c8cd849beda4e27f6699dd1. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eed7a038-7fb3-4f4a-ae6c-347854931382.json and https://artists.proofprofile.net/proofs/artist/eed7a038-7fb3-4f4a-ae6c-347854931382.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0xf4bec85613abc8ce88eb9319ce0ca3deab6ed98d1c8cd849beda4e27f6699dd1","name":"Mr PC Ska Jazz","registered_at":"2026-06-21T12:08:34Z","symbol":"NIM1918804","token_address":"0x37d9fbeeb0660fbdd2027a6023b66af6c536fc30","type":"artist","uuid":"eed7a038-7fb3-4f4a-ae6c-347854931382"}
album: Blues for Robin
  type: MusicAlbum
  date published: 2019-06-24
  track: Blues for Robin
    type: MusicRecording
    duration: PT5M31S
    duration ms: 331833
    explicit: false
    by artist: Mr PC Ska Jazz
    in album: Blues for Robin
      type: MusicAlbum
      date published: 2019-06-24
    genre: rocksteady
    genre: ska
    isrc code: ARHOY1800001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T11:48:18+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe0d742d7e2ff715d1d1cfe7d6364480cf4a97aa60f76f9647bd98a812271f98f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959008
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959008
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARHOY1800001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T14:50:17Z
    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 0xe0d742d7e2ff715d1d1cfe7d6364480cf4a97aa60f76f9647bd98a812271f98f. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T14:50:17Z), 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/ARHOY1800001.
      date published: 2026-07-21T14:50:17Z
    audio: Blues for Robin
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 90.752
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.801
      additional property: Energy
        type: PropertyValue
        value: 0.539
      additional property: Speechiness
        type: PropertyValue
        value: 0.067
      additional property: Acousticness
        type: PropertyValue
        value: 0.401
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.843
      additional property: Liveness
        type: PropertyValue
        value: 0.097
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.559
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.027
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: International Connection, Vol. 1
  type: MusicAlbum
  date published: 2019-07-16