Piano Jazz Quartet
type: MusicGroup
genre: smooth jazz
popularity: 5
followers: 67
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSRecordURL
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  value: https://artists.proofprofile.net/proofs/artist/ccaa8bfc-044b-4599-a58f-cd5d2235092b.json
additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  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 0x852bca95d6d0ef9fd2da4b800064f6f9eba7d9f5e408507dd4c5df632e9feb2f. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ccaa8bfc-044b-4599-a58f-cd5d2235092b.json and https://artists.proofprofile.net/proofs/artist/ccaa8bfc-044b-4599-a58f-cd5d2235092b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:40:06Z
  text: {"copyright_id":"0x852bca95d6d0ef9fd2da4b800064f6f9eba7d9f5e408507dd4c5df632e9feb2f","name":"Piano Jazz Quartet","registered_at":"2026-06-20T23:20:17Z","symbol":"NIM1746832","token_address":"0x9e45d53509243d130c4f4c5f719b1bbe9f5c349a","type":"artist","uuid":"ccaa8bfc-044b-4599-a58f-cd5d2235092b"}
album: Trombone Episode
  type: MusicAlbum
  date published: 2017-02-01
album: Sax And Piano
  type: MusicAlbum
  date published: 2018-06-25
  track: Paramount
    type: MusicRecording
    duration: PT2M48S
    duration ms: 168412
    explicit: false
    by artist: Piano Jazz Quartet
    in album: Sax And Piano
      type: MusicAlbum
      date published: 2018-06-25
    genre: smooth jazz
    isrc code: GBSMU6571338
    additional property: CopyrightID
    additional property: CopyrightStatus
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU6571338
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T12:50:13Z
    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 0x651d4a0ae540c214f3fdfd75bb529f01da6bb7c711ee47565781d053ebeb149d. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/GBSMU6571338.
      date published: 2026-07-17T12:50:13Z
    audio: Paramount
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 73.467
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.567
      additional property: Energy
        type: PropertyValue
        value: 0.066
      additional property: Speechiness
        type: PropertyValue
        value: 0.106
      additional property: Acousticness
        type: PropertyValue
        value: 0.79
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.686
      additional property: Liveness
        type: PropertyValue
        value: 0.208
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.757
      additional property: Loudness (dB)
        type: PropertyValue
        value: -27.11
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Quartet Jazz Jams
  type: MusicAlbum
  date published: 2019-06-19