David Schrader
type: MusicGroup
description: David Schrader (born September 15, 1952, in Chicago, Illinois) is an American harpsichordist, organist, and fortepianist. He was a professor at the Chicago College of Performing Arts at Roosevelt Univ
popularity: 10
followers: 207
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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 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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  date published: 2026-06-21T20:46:40Z
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album: American Works for Organ And Orchestra
  type: MusicAlbum
  date published: 2000-01-01
album: American Works for Organ And Orchestra
  type: MusicAlbum
  date published: 2000-01-01
album: Bach: The Goldberg Variations
  type: MusicAlbum
  date published: 2004-08-10
album: L'ascension
  type: MusicAlbum
  date published: 2015-04-01
album: Frank Ferko & Leo Sowerby: Organ Music
  type: MusicAlbum
  date published: 2021-07-09
album: Frank Ferko & Leo Sowerby: Organ Music
  type: MusicAlbum
  date published: 2021-07-09
track: Quand le bien-aime reviendra
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  by artist: Nicolas Dalayrac
  by artist: Patrice Michaels
  by artist: David Schrader
  in album: Songs Of The Classical Age
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    date published: 2000-01-01
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  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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    date published: 2026-07-07T14:04:01Z
  audio: Quand le bien-aime reviendra
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    additional property: Danceability
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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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    additional property: Key Name
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track: Morgenlied eines armen Mannes
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  duration: PT2M51S
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  by artist: Maria Theresia von Paradis
  by artist: Patrice Michaels
  by artist: David Schrader
  in album: Songs Of The Classical Age
    type: MusicAlbum
    date published: 2000-01-01
  genre: classical
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  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 0x448f6b4f883275a89b5bfdc31504376fd883e3092ec90e7edccc8dbc770b5b2f. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USA560586055.
    date published: 2026-07-31T19:53:13Z
  audio: Morgenlied eines armen Mannes
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    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
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Danceability
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value: 0.475

Energy
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value: 0.069

Speechiness
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value: 0.047

Acousticness
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value: 0.978

Instrumentalness
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value: 0.001

Liveness
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value: 0.057

Valence (Positivity)
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value: 0.155

Loudness (dB)
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value: -23.87

Key Name
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value: D

Mode Name
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value: Major