Mauruce Duruflé
type: MusicGroup
popularity: 6
followers: 36
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x91746d4f4529a9209eacf484d46f59c97de7e9561e1dd8c08976a8576f0c293c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953907
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953907
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/15492234-46cd-46e9-86ab-1bba7bfcdd3b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/15492234-46cd-46e9-86ab-1bba7bfcdd3b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/15492234-46cd-46e9-86ab-1bba7bfcdd3b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:39:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91746d4f4529a9209eacf484d46f59c97de7e9561e1dd8c08976a8576f0c293c. Chain 2 (Bitcoin): anchored in block 953907 (2026-06-16T07:39:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15492234-46cd-46e9-86ab-1bba7bfcdd3b.json and https://artists.proofprofile.net/proofs/artist/15492234-46cd-46e9-86ab-1bba7bfcdd3b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:39:24Z
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album: Quatre Motets sur des thèmes grégoriens pour choeur a cappella, Op. 10: I. Ubi caritas
  type: MusicAlbum
  date published: 2019-02-13
album: Messe “Cum Jubilo” pour choeur de barytons et orgue, Op. 11: II. Gloria
  type: MusicAlbum
  date published: 2019-01-23
track: Messe “Cum Jubilo” pour choeur de barytons et orgue, Op. 11: I. Kyrie
  type: MusicRecording
  duration: PT3M44S
  duration ms: 224893
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  by artist: Maurice Duruflé
  by artist: Mauruce Duruflé
  by artist: Ken Cowan
  by artist: Robert Simpson
  in album: Duruflé: Complete Choral Works
    type: MusicAlbum
    date published: 2019-04-05
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH1957101
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T23:51:35Z
  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
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b0be1399e600268e963bbc40a0e5a709ecfc907ccc9e1e95b6ba967dfa1a05. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/GBLLH1957101.
    date published: 2026-07-31T23:51:35Z
  audio: Messe “Cum Jubilo” pour choeur de barytons et orgue, Op. 11: I. Kyrie
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    additional property: Tempo (BPM)
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    additional property: Time Signature
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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: Valence (Positivity)
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      type: PropertyValue
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    additional property: Mode Name
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      value: Minor
track: Messe “Cum Jubilo” pour choeur de barytons et orgue, Op. 11: II. Gloria
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  duration: PT6M12S
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  explicit: false
  by artist: Maurice Duruflé
  by artist: Mauruce Duruflé
  by artist: Eduardo Tercero
  by artist: Ken Cowan
  by artist: Robert Simpson
  in album: Duruflé: Complete Choral Works
    type: MusicAlbum
    date published: 2019-04-05
  isrc code: GBLLH1957102
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
    type: PropertyValue
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8b403693632d1ec18e9a1097cfeda746150c024a9564b0d55071564569e06410
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960481
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH1957102
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T23:51:35Z
  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
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b403693632d1ec18e9a1097cfeda746150c024a9564b0d55071564569e06410. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/GBLLH1957102.
    date published: 2026-07-31T23:51:35Z
  audio: Messe “Cum Jubilo” pour choeur de barytons et orgue, Op. 11: II. Gloria
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
      type: PropertyValue
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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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track: Quatre Motets sur des thèmes grégoriens pour choeur a cappella, Op.10: I. Ubi caritas
track: Quatre Motets sur des thèmes grégoriens pour choeur a cappella, Op. 10: II. Tota pulchra es
track: Quatre Motets sur des thèmes grégoriens pour choeur a cappella, Op. 10: III. Tu es petrus
track: Quatre Motets sur des thèmes grégoriens pour choeur a cappella, Op. 10: IV. Tantum ergo
track: Notre Père pour choeur a cappella
track: Requiem pour soli, choeurs et orgue, Op. 9: I. Introit
track: Requiem pour soli, choeurs et orgue, Op. 9: II. Kyrie
track: Requiem pour soli, choeurs et orgue, Op. 9: III. Domine Jesu Christe
track: Requiem pour soli, choeurs et orgue, Op. 9: IV. Sanctus & Benedictus
track: Requiem pour soli, choeurs et orgue, Op. 9: VI. Agnus Dei
track: Requiem pour soli, choeurs et orgue, Op. 9: VII. Lux aeterna
track: Requiem pour soli, choeurs et orgue, Op. 9: VIII. Libera me

Instrumentalness
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value: 0.37

Liveness
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value: 0.145

Valence (Positivity)
type: PropertyValue
value: 0.037

Loudness (dB)
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value: -23.468

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Mode Name
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Quatre Motets sur des thèmes grégoriens pour choeur a cappella, Op.10: I. Ubi caritas
type: MusicRecording
duration: PT2M48S
duration ms: 168506
explicit: false
by artist: Maurice Duruflé
by artist: Mauruce Duruflé
by artist: Houston Chamber Choir
by artist: Robert Simpson
in album: Duruflé: Complete Choral Works
  type: MusicAlbum
  date published: 2019-04-05
isrc code: GBLLH1957106
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH1957106
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39745f39162e4d5484f385fa28456369cfb7eaca8d69bbd03c6f537a011aa924. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBLLH1957106.
  date published: 2026-07-02T03:55:08Z
audio: Quatre Motets sur des thèmes grégoriens pour choeur a cappella, Op.10: I. Ubi caritas
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  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
    type: PropertyValue
    value: 0.181
  additional property: Energy
    type: PropertyValue
    value: 0.058
  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.989
  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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Quatre Motets sur des thèmes grégoriens pour choeur a cappella, Op. 10: II. Tota pulchra es
type: MusicRecording
duration: PT2M6S
duration ms: 126493
explicit: false
by artist: Maurice Duruflé
by artist: Mauruce Duruflé
by artist: Houston Chamber Choir
by artist: Robert Simpson
in album: Duruflé: Complete Choral Works
  type: MusicAlbum
  date published: 2019-04-05
isrc code: GBLLH1957107
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-29T19:59:50+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH1957107
additional property: OTSTimestamp
  type: PropertyValue
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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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca74f93815c5c60f9fcc6a7f5b834d65b5474abb600ccbdf6adff1bcf528916. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBLLH1957107.
  date published: 2026-07-29T21:09:47Z
audio: Quatre Motets sur des thèmes grégoriens pour choeur a cappella, Op. 10: II. Tota pulchra es
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Quatre Motets sur des thèmes grégoriens pour choeur a cappella, Op. 10: III. Tu es petrus
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duration: PT1M1S
duration ms: 61746
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by artist: Mauruce Duruflé
by artist: Houston Chamber Choir
by artist: Robert Simpson
in album: Duruflé: Complete Choral Works
  type: MusicAlbum
  date published: 2019-04-05
isrc code: GBLLH1957108
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH1957108
additional property: OTSTimestamp
  type: PropertyValue
  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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab177297e4401d2dd0ce89ad87a935dc6491a857519a48447ee8ff35b37b050a. 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/GBLLH1957108.
  date published: 2026-07-08T03:20:19Z
audio: Quatre Motets sur des thèmes grégoriens pour choeur a cappella, Op. 10: III. Tu es petrus
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Quatre Motets sur des thèmes grégoriens pour choeur a cappella, Op. 10: IV. Tantum ergo
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duration: PT2M39S
duration ms: 159333
explicit: false
by artist: Maurice Duruflé
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isrc code: GBLLH1957109
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additional property: CopyrightRegisteredAt
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subject of: OpenTimestamps Proof of Existence
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audio: Quatre Motets sur des thèmes grégoriens pour choeur a cappella, Op. 10: IV. Tantum ergo
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Notre Père pour choeur a cappella
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T14:44:50Z
audio: Notre Père pour choeur a cappella
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Requiem pour soli, choeurs et orgue, Op. 9: I. Introit
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Requiem pour soli, choeurs et orgue, Op. 9: I. Introit
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Requiem pour soli, choeurs et orgue, Op. 9: II. Kyrie
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Requiem pour soli, choeurs et orgue, Op. 9: II. Kyrie
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Requiem pour soli, choeurs et orgue, Op. 9: III. Domine Jesu Christe
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T12:24:41Z
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Requiem pour soli, choeurs et orgue, Op. 9: IV. Sanctus & Benedictus
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Requiem pour soli, choeurs et orgue, Op. 9: VI. Agnus Dei
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Requiem pour soli, choeurs et orgue, Op. 9: VII. Lux aeterna
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Requiem pour soli, choeurs et orgue, Op. 9: VIII. Libera me
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