William Engvick
type: MusicGroup
description: 300px|thumb|Bill Engvick playing piano in 1937. William Engvick (July 1, 1914, Oakland, California – September 4, 2012, Oakland, California) was an American lyricist,List of albums containing songs wr
popularity: 15
followers: 69
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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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track: Foreign Film Festival
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  by artist: Antonio Maria
  by artist: John Barry
  by artist: Mikis Theodorakis
  by artist: Norman Gimbel
  by artist: Riz Ortolani
  by artist: William Engvick
  by artist: Don Black
  by artist: Georges Auric
  by artist: Michel Legrand
  by artist: Nino Oliviero
  by artist: Jacques Demy
  by artist: Norman Newell
  by artist: Henry Mancini
  in album: Encore! More Of The Concert Sound Of Henry Mancini
    type: MusicAlbum
    date published: 1967-10-23
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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: 2026-07-08T03:20:19Z
  audio: Foreign Film Festival
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track: The "Moulin Rouge" Theme
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  by artist: William Engvick
  by artist: Annunzio Paolo Mantovani
  in album: Mantovani Plays For You
    type: MusicAlbum
    date published: 2021-12-23
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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: 2026-07-31T08:38:45Z
  audio: The "Moulin Rouge" Theme
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track: Moon And Sand

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Moon And Sand
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duration: PT8M54S
duration ms: 534960
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by artist: William Engvick
by artist: Alec Wilder
by artist: Mortimer S. Palitz
by artist: Keith Jarrett
by artist: Gary Peacock
by artist: Jack DeJohnette
in album: Standards, Vol. 2
  type: MusicAlbum
  date published: 1983
isrc code: DEB338328902
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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: 2026-06-13T13:32:09Z
audio: Moon And Sand
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