Riff Ruffin
type: MusicGroup
album: Money for My Honey / The Darkest Hour
  type: MusicAlbum
  date published: 1955-08-05
album: If I Can't Have You / Blue Streak
  type: MusicAlbum
  date published: 1956-02-28
album: All My Life / Gravy Train
  type: MusicAlbum
  date published: 1959-01-17
album: Dig That Rock and Roll / Hucklebuck Scratch
  type: MusicAlbum
  date published: 1961-10-25
album: Home Cookin' / Hot Waffles
  type: MusicAlbum
  date published: 1965-05-02
album: Plain English / Hoop and Holler
  type: MusicAlbum
  date published: 1965-12-06
album: Gravy Train
  type: MusicAlbum
  date published: 2019-03-02
track: Gravy Train
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  duration ms: 149266
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  by artist: Riff Ruffin
  in album: Koko-Mojo Diner, Vol. 2 - Cornbread & Cabbage Greens
    type: MusicAlbum
    date published: 2021-04-16
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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
    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 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 0xe27563c4e4982a9aec7c7913d7b1aab47ebbbc74fb5bb490d5b93c051b45675e. 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/DEU472215556.
    date published: 2026-07-08T03:20:19Z
  audio: Gravy Train
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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      value: 7
    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.487
    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
      value: 0.029
    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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      value: -12.564
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
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      value: Major