Francis Pierre
type: MusicGroup
description: Francis Pierre (1931-2013) was a French harpist. He played for the Orchestre de Paris and taught at the Conservatoire de Paris. References Category:1931 births Category:2013 deaths Category:French c
popularity: 2
followers: 4
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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: Pie Jesu
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  by artist: Lili Boulanger
  by artist: Olivier Charlier
  by artist: Magali Demesse
  by artist: Aude Perin Dureau
  by artist: Eric Lebrun
  by artist: Emile Naoumoff
  by artist: Francis Pierre
  by artist: Doris Reinhardt
  by artist: Isabelle Sabrie
  by artist: Raphelle Semezis
  in album: Boulanger, Lili and Nadia: In Memoriam Lili Boulanger
    type: MusicAlbum
    date published: 1993-12-01
  genre: choral
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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: 2026-07-07T09:18:01Z
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track: Lux aeterna
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  by artist: Nadia Boulanger
  by artist: Olivier Charlier
  by artist: Francis Pierre
  by artist: Isabelle Sabrie
  by artist: Raphelle Semezis
  in album: Boulanger, Lili and Nadia: In Memoriam Lili Boulanger
    type: MusicAlbum
    date published: 1993-12-01
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  additional property: OTSTimestamp
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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: 2026-07-31T12:24:41Z
  audio: Lux aeterna
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
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Instrumentalness
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Liveness
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Valence (Positivity)
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Loudness (dB)
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Key Name
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Mode Name
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Pie Jesu
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duration: PT4M17S
duration ms: 257959
explicit: false
by artist: Lili Boulanger
by artist: Olivier Charlier
by artist: Magali Demesse
by artist: Aude Perin Dureau
by artist: Eric Lebrun
by artist: Emile Naoumoff
by artist: Francis Pierre
by artist: Doris Reinhardt
by artist: Isabelle Sabrie
by artist: Raphelle Semezis
in album: Boulanger, Lili and Nadia: In Memoriam Lili Boulanger
  type: MusicAlbum
  date published: 1993-12-01
genre: choral
isrc code: HKI199357913
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additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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
  type: DigitalDocument
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  date published: 2026-07-08T03:22:41Z
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  additional property: Speechiness
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Lux aeterna
type: MusicRecording
duration: PT2M6S
duration ms: 126040
explicit: false
by artist: Nadia Boulanger
by artist: Olivier Charlier
by artist: Francis Pierre
by artist: Isabelle Sabrie
by artist: Raphelle Semezis
in album: Boulanger, Lili and Nadia: In Memoriam Lili Boulanger
  type: MusicAlbum
  date published: 1993-12-01
isrc code: HKI199357914
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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: 2026-07-30T21:35:24Z
audio: Lux aeterna
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