Frederick Derogatis
type: MusicGroup
genre: classical piano
popularity: 2
followers: 5
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additional property: CopyrightChainExplorerURL
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91b978e70841fc1936e6924de656c976a9009895617875d7bbee4695e20c5d8. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c8623872-35a6-44f1-a2cf-ff62182cbb50.json and https://artists.proofprofile.net/proofs/artist/c8623872-35a6-44f1-a2cf-ff62182cbb50.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:05:13Z
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album: Beethoven Classical Piano Works (Volume Five)
  type: MusicAlbum
  date published: 2007-08-27
album: The Miracle of Chrismas Classical Piano
  type: MusicAlbum
  date published: 2007-10-01
album: Mozart For Christmas
  type: MusicAlbum
  date published: 2007-11-01
  track: Piano Sonata No. 15 in F major, K. 533/494 (I. Allegro, II. Andante, III. Rondo)
    type: MusicRecording
    duration: PT16M43S
    duration ms: 1003773
    explicit: false
    by artist: Frederick Derogatis
    in album: Mozart For Christmas
      type: MusicAlbum
      date published: 2007-11-01
    genre: classical piano
    isrc code: USJ7U0715002
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    additional property: OTSVerificationAPI
      type: PropertyValue
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T02:43:29Z
    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 0x09a9af7fdd7033befad7b979e16d3da3dbbcf59dc35161a2ad44eb6c9b499f9d. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T02:43:29Z), 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/USJ7U0715002.
      date published: 2026-07-22T02:43:29Z
    audio: Piano Sonata No. 15 in F major, K. 533/494 (I. Allegro, II. Andante, III. Rondo)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 149.856
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.269
      additional property: Energy
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        value: 0.114
      additional property: Speechiness
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        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0.978
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.918
      additional property: Liveness
        type: PropertyValue
        value: 0.187
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.465
      additional property: Loudness (dB)
        type: PropertyValue
        value: -25.031
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: The Christmas Classical Piano Treasury
  type: MusicAlbum
  date published: 2007-12-01
album: Classical Piano For Valentine's Day (Volume 2)
  type: MusicAlbum
  date published: 2008-01-01
album: Classical Piano For Valentine's Day (Volume 4)
  type: MusicAlbum
  date published: 2008-01-01
album: Classical Piano For Valentine's Day (Volume 3)
  type: MusicAlbum
  date published: 2008-01-01
album: Christmas Lullabies
  type: MusicAlbum
  date published: 2008-01-01
album: Classical Piano For Valentine's Day (Volume 1)
  type: MusicAlbum
  date published: 2008-01-01