Sweet Mistreater
type: MusicRecording
duration: PT3M2S
duration ms: 182133
explicit: false
by artist: James P. Johnson
by artist: Henry Creamer
by artist: Bessie Smith
in album: Smith, Bessie: Empty Bed Blues (1927-1928)
  type: MusicAlbum
  date published: 2004-10-01
genre: dixieland
genre: harlem-renaissance
genre: swing
genre: tin-pan-alley
genre: vintage-jazz
genre: ragtime
genre: stride
isrc code: HKI190307507
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
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  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d60f799ea5ce9f698750327c98ab116eee1d6ced29de823df1c3ce787d8b8e0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HKI190307507.
  date published: 2026-07-08T03:20:19Z
audio: Sweet Mistreater
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.316
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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    value: -17.461
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
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    value: Minor