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type: MusicGroup
genre: opera
genre: requiem
popularity: 2
followers: 15
additional property: CopyrightID
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: OTSProofURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d81ee09e691ba5a1a5d504cd1c01f440af92ace595121bd81fac11019de3ed1. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9366e7ec-6c0b-4b89-9f5e-fe8770f2c35c.json and https://artists.proofprofile.net/proofs/artist/9366e7ec-6c0b-4b89-9f5e-fe8770f2c35c.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-19T03:51:26Z
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album: Brahms: Ein Deutsches Requiem, Op. 45
  type: MusicAlbum
  date published: 2016-10-07
  track: Ein deutsches Requiem, Op. 45: Wie lieblich sind deine Wohnungen (Mäßig bewegt)
    type: MusicRecording
    duration: PT4M58S
    duration ms: 298520
    explicit: false
    by artist: Johannes Brahms
    by artist: Renate Arends
    by artist: Thomas Oliemans
    by artist: The Hague Philharmonic
    by artist: Jan Willem de Vriend
    by artist: Rotterdam Symphony Chorus
    in album: Brahms: Ein Deutsches Requiem, Op. 45
      type: MusicAlbum
      date published: 2016-10-07
    genre: classical
    genre: german-romanticism
    genre: classical-piano
    genre: late-romantic-era
    genre: chamber-music
    genre: orchestral
    isrc code: NLB151600462
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
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      type: PropertyValue
      value: 2026-07-31T12:04:46+00:00
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      value: https://explorer.copyrightchains.com/tx/0x5d89b5e14d80ec6de4c62b85f4b82a2bf2254e6ddae74e0d9458efc5e217bcd4
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    additional property: OTSVerificationAPI
      type: PropertyValue
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-31T12:24:41Z
    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 0x5d89b5e14d80ec6de4c62b85f4b82a2bf2254e6ddae74e0d9458efc5e217bcd4. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151600462 — a six-check JSON result.
      date published: 2026-07-31T12:24:41Z
    audio: Ein deutsches Requiem, Op. 45: Wie lieblich sind deine Wohnungen (Mäßig bewegt)
      type: AudioObject
      additional property: Tempo (BPM)
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      additional property: Musical Key
        type: PropertyValue
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      additional property: Mode (Major/Minor)
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        type: PropertyValue
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      additional property: Danceability
        type: PropertyValue
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      additional property: Valence (Positivity)
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album: Poulenc: Les mamelles de Tirésias
  type: MusicAlbum
  date published: 2009-12-01
  track: Les mamelles de Tirésias: Prologue (Director)
    type: MusicRecording
    duration: PT6M47S
    duration ms: 407640
    explicit: false
    by artist: Francis Poulenc
    by artist: Hans Pieter Herman
    by artist: Nieuw Ensemble
    by artist: Ed Spanjaard
    in album: Poulenc: Les mamelles de Tirésias
      type: MusicAlbum
      date published: 2009-12-01
    popularity: 2
    genre: classical
    genre: early-modern-classical
    genre: neoclassicism
    isrc code: NLY330905589
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
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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/NLY330905589
    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 0xed394e71605229da77bdfda465ae624ddea4d3dcf5bdbecca6a1b317dbb83db4. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905589 — a six-check JSON result.
      date published: 2026-07-30T15:42:38Z
    audio: Les mamelles de Tirésias: Prologue (Director)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
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      additional property: Musical Key
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      additional property: Mode (Major/Minor)
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      additional property: Time Signature
        type: PropertyValue
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      additional property: Danceability
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      additional property: Valence (Positivity)
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  track: Les mamelles de Tirésias, Act I, Scene 1: Non, Monsieur, mon mari (Thérèse, Husband)
  track: Les mamelles de Tirésias, Act I, Scene 2: Donne-moi du lard, je te dis (Thérèse, Husband)
  track: Les mamelles de Tirésias, Act I, Scene 4: Avec vous, vieux Lacouf (Lacouf, Presto)
  track: Les mamelles de Tirésias, Act I, Scene 5: Ah, chère liberté (Lacouf, Presto, Thérèse, Husband, Townspeople)
  track: Les mamelles de Tirésias, Act I, Scene 6: Ah, puisqu'enfin voici un agent (Husband, Policeman, Townspeople)
  track: Les mamelles de Tirésias, Act I, Scene 7: Fameux représentant de toute autorité (Husband, Townspeople)
  track: Les mamelles de Tirésias, Act I, Scene 9: Intermezzo (Townspeople)
  track: Les mamelles de Tirésias, Act II, Scene 2: Hands Up!…Bonjour, Monsieur le mari (Journalist, Husband)
  track: Les mamelles de Tirésias, Act II, Scene 6: Il paraît que vous en faites de belles (Husband, Policeman)
  track: Les mamelles de Tirésias, Act II: Chastes citoyens de Zanzibar, me voici (Thérèse, Husband, Policeman)
  track: Les mamelles de Tirésias, Act II, Scene 8: Il faut s'aimer ou je succombe (Thérèse, Husband, Newspaper Woman, Policeman, Townspeople)
album: Willem Mengelberg: Selected Compositions
album: Monsterkoffer
album: Peter Benoit: Heaven and Hell (Live)

Danceability
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Energy
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Speechiness
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Acousticness
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Instrumentalness
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value: 0.001

Liveness
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value: 0.098

Valence (Positivity)
type: PropertyValue
value: 0.039

Loudness (dB)
type: PropertyValue
value: -21.202

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Minor

Les mamelles de Tirésias, Act I, Scene 1: Non, Monsieur, mon mari (Thérèse, Husband)
type: MusicRecording
duration: PT5M16S
duration ms: 316680
explicit: false
by artist: Francis Poulenc
by artist: Renate Arends
by artist: Bernard Loonen
by artist: Nieuw Ensemble
by artist: Ed Spanjaard
in album: Poulenc: Les mamelles de Tirésias
  type: MusicAlbum
  date published: 2009-12-01
popularity: 3
genre: classical
genre: early-modern-classical
genre: neoclassicism
isrc code: NLY330905590
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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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/NLY330905590
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 0x4afb2b4f5cdaaf566217576d13d507866448abaac98aab51af267f5efd1b18f3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905590 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Les mamelles de Tirésias, Act I, Scene 1: Non, Monsieur, mon mari (Thérèse, Husband)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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Les mamelles de Tirésias, Act I, Scene 2: Donne-moi du lard, je te dis (Thérèse, Husband)
type: MusicRecording
duration: PT1M43S
duration ms: 103680
explicit: false
by artist: Francis Poulenc
by artist: Renate Arends
by artist: Bernard Loonen
by artist: Nieuw Ensemble
by artist: Ed Spanjaard
in album: Poulenc: Les mamelles de Tirésias
  type: MusicAlbum
  date published: 2009-12-01
popularity: 1
genre: classical
genre: early-modern-classical
genre: neoclassicism
isrc code: NLY330905591
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSVerificationAPI
  type: PropertyValue
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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 0xda3f28c9938851c3671d95e2447d61677dc4516cdaacbd157ff4fe050cfd0ffd. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905591 — a six-check JSON result.
  date published: 2026-07-31T13:04:34Z
audio: Les mamelles de Tirésias, Act I, Scene 2: Donne-moi du lard, je te dis (Thérèse, Husband)
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  additional property: Musical Key
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  additional property: Instrumentalness
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  additional property: Mode Name
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Les mamelles de Tirésias, Act I, Scene 4: Avec vous, vieux Lacouf (Lacouf, Presto)
type: MusicRecording
duration: PT2M2S
duration ms: 122560
explicit: false
by artist: Francis Poulenc
by artist: Terence Mierau
by artist: Jan Willem Baljet
by artist: Nieuw Ensemble
by artist: Ed Spanjaard
in album: Poulenc: Les mamelles de Tirésias
  type: MusicAlbum
  date published: 2009-12-01
popularity: 2
genre: classical
genre: early-modern-classical
genre: neoclassicism
isrc code: NLY330905593
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
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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
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  date published: 2026-07-31T00:26:26Z
audio: Les mamelles de Tirésias, Act I, Scene 4: Avec vous, vieux Lacouf (Lacouf, Presto)
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    value: 0.585
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.595
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Les mamelles de Tirésias, Act I, Scene 5: Ah, chère liberté (Lacouf, Presto, Thérèse, Husband, Townspeople)
type: MusicRecording
duration: PT4M7S
duration ms: 247360
explicit: false
by artist: Francis Poulenc
by artist: Renate Arends
by artist: Bernard Loonen
by artist: Opera Trionfo
by artist: Nieuw Ensemble
by artist: Ed Spanjaard
by artist: Terence Mierau
by artist: Jan Willem Baljet
in album: Poulenc: Les mamelles de Tirésias
  type: MusicAlbum
  date published: 2009-12-01
popularity: 1
genre: classical
genre: early-modern-classical
genre: neoclassicism
isrc code: NLY330905594
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T07:19:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x965f128232e0f7eb9c746dac7f725271e8904a78aea73467c51517790784a0ce
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960368
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960368
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905594
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T08:26:41Z
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 0x965f128232e0f7eb9c746dac7f725271e8904a78aea73467c51517790784a0ce. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905594 — a six-check JSON result.
  date published: 2026-07-31T08:26:41Z
audio: Les mamelles de Tirésias, Act I, Scene 5: Ah, chère liberté (Lacouf, Presto, Thérèse, Husband, Townspeople)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.915
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.29
  additional property: Energy
    type: PropertyValue
    value: 0.076
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.352
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.04
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.544
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Les mamelles de Tirésias, Act I, Scene 6: Ah, puisqu'enfin voici un agent (Husband, Policeman, Townspeople)
type: MusicRecording
duration: PT4M39S
duration ms: 279840
explicit: false
by artist: Francis Poulenc
by artist: Bernard Loonen
by artist: Mattijs van de Woerd
by artist: Opera Trionfo
by artist: Nieuw Ensemble
by artist: Ed Spanjaard
in album: Poulenc: Les mamelles de Tirésias
  type: MusicAlbum
  date published: 2009-12-01
popularity: 1
genre: classical
genre: early-modern-classical
genre: neoclassicism
isrc code: NLY330905595
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T14:42:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xef0d1dc51e907b9ba0e5cf2935f1ad55692f2d533cc83d8e35749250473aa03f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905595
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 0xef0d1dc51e907b9ba0e5cf2935f1ad55692f2d533cc83d8e35749250473aa03f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905595 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Les mamelles de Tirésias, Act I, Scene 6: Ah, puisqu'enfin voici un agent (Husband, Policeman, Townspeople)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.16
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.448
  additional property: Energy
    type: PropertyValue
    value: 0.206
  additional property: Speechiness
    type: PropertyValue
    value: 0.101
  additional property: Acousticness
    type: PropertyValue
    value: 0.929
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.368
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.152
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.993
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Les mamelles de Tirésias, Act I, Scene 7: Fameux représentant de toute autorité (Husband, Townspeople)
type: MusicRecording
duration: PT2M45S
duration ms: 165760
explicit: false
by artist: Francis Poulenc
by artist: Bernard Loonen
by artist: Opera Trionfo
by artist: Nieuw Ensemble
by artist: Ed Spanjaard
in album: Poulenc: Les mamelles de Tirésias
  type: MusicAlbum
  date published: 2009-12-01
popularity: 1
genre: classical
genre: early-modern-classical
genre: neoclassicism
isrc code: NLY330905596
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T15:39:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8336492c56f8b32de948b29fc9e7f8f5c818ee264f080febbe7f06cfd8138775
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960427
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960427
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905596
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:59:18Z
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 0x8336492c56f8b32de948b29fc9e7f8f5c818ee264f080febbe7f06cfd8138775. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905596 — a six-check JSON result.
  date published: 2026-07-31T15:59:18Z
audio: Les mamelles de Tirésias, Act I, Scene 7: Fameux représentant de toute autorité (Husband, Townspeople)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 145.14
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.274
  additional property: Energy
    type: PropertyValue
    value: 0.081
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.968
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.266
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.038
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.401
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Les mamelles de Tirésias, Act I, Scene 9: Intermezzo (Townspeople)
type: MusicRecording
duration: PT2M56S
duration ms: 176960
explicit: false
by artist: Francis Poulenc
by artist: Opera Trionfo
by artist: Nieuw Ensemble
by artist: Ed Spanjaard
in album: Poulenc: Les mamelles de Tirésias
  type: MusicAlbum
  date published: 2009-12-01
popularity: 1
genre: classical
genre: early-modern-classical
genre: neoclassicism
isrc code: NLY330905598
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T19:54:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x57a5e52d65c9e1f80b76b780c03594f34ce8a2976d74afff7d158804635003c3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960459
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960459
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905598
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T20:22:46Z
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 0x57a5e52d65c9e1f80b76b780c03594f34ce8a2976d74afff7d158804635003c3. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905598 — a six-check JSON result.
  date published: 2026-07-31T20:22:46Z
audio: Les mamelles de Tirésias, Act I, Scene 9: Intermezzo (Townspeople)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 85.93
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.222
  additional property: Energy
    type: PropertyValue
    value: 0.146
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.972
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.07
  additional property: Liveness
    type: PropertyValue
    value: 0.39
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.063
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.954
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Les mamelles de Tirésias, Act II, Scene 2: Hands Up!…Bonjour, Monsieur le mari (Journalist, Husband)
type: MusicRecording
duration: PT4M15S
duration ms: 255120
explicit: false
by artist: Francis Poulenc
by artist: Leo Van Plas
by artist: Bernard Loonen
by artist: Nieuw Ensemble
by artist: Ed Spanjaard
in album: Poulenc: Les mamelles de Tirésias
  type: MusicAlbum
  date published: 2009-12-01
popularity: 0
genre: classical
genre: early-modern-classical
genre: neoclassicism
isrc code: NLY330905600
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T17:42:16+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7d88b101ce9e67773e952eb5358bc0b1b53fbe73da1579050f94d3df07705b67
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905600
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 0x7d88b101ce9e67773e952eb5358bc0b1b53fbe73da1579050f94d3df07705b67. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905600 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Les mamelles de Tirésias, Act II, Scene 2: Hands Up!…Bonjour, Monsieur le mari (Journalist, Husband)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.417
  additional property: Energy
    type: PropertyValue
    value: 0.105
  additional property: Speechiness
    type: PropertyValue
    value: 0.095
  additional property: Acousticness
    type: PropertyValue
    value: 0.938
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.64
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.091
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.756
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Les mamelles de Tirésias, Act II, Scene 6: Il paraît que vous en faites de belles (Husband, Policeman)
type: MusicRecording
duration: PT0M33S
duration ms: 33920
explicit: false
by artist: Francis Poulenc
by artist: Bernard Loonen
by artist: Mattijs van de Woerd
by artist: Nieuw Ensemble
by artist: Ed Spanjaard
in album: Poulenc: Les mamelles de Tirésias
  type: MusicAlbum
  date published: 2009-12-01
popularity: 0
genre: classical
genre: early-modern-classical
genre: neoclassicism
isrc code: NLY330905604
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T19:58:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe6591a549c509edc43a9cfeffd21b1ce39525568533464407deb3c3840106b43
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960459
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960459
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905604
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T20:22:46Z
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 0xe6591a549c509edc43a9cfeffd21b1ce39525568533464407deb3c3840106b43. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905604 — a six-check JSON result.
  date published: 2026-07-31T20:22:46Z
audio: Les mamelles de Tirésias, Act II, Scene 6: Il paraît que vous en faites de belles (Husband, Policeman)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.38
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.721
  additional property: Energy
    type: PropertyValue
    value: 0.174
  additional property: Speechiness
    type: PropertyValue
    value: 0.271
  additional property: Acousticness
    type: PropertyValue
    value: 0.904
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.176
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.815
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.712
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Les mamelles de Tirésias, Act II: Chastes citoyens de Zanzibar, me voici (Thérèse, Husband, Policeman)
type: MusicRecording
duration: PT5M38S
duration ms: 338880
explicit: false
by artist: Francis Poulenc
by artist: Renate Arends
by artist: Bernard Loonen
by artist: Mattijs van de Woerd
by artist: Nieuw Ensemble
by artist: Ed Spanjaard
in album: Poulenc: Les mamelles de Tirésias
  type: MusicAlbum
  date published: 2009-12-01
popularity: 0
genre: classical
genre: early-modern-classical
genre: neoclassicism
isrc code: NLY330905605
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:14:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcf139846bab4293a49619b62ba79ec86cd868069e5edae251bb1d37abe5a0f62
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
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  date published: 2026-07-08T03:20:19Z
audio: Les mamelles de Tirésias, Act II: Chastes citoyens de Zanzibar, me voici (Thérèse, Husband, Policeman)
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Les mamelles de Tirésias, Act II, Scene 8: Il faut s'aimer ou je succombe (Thérèse, Husband, Newspaper Woman, Policeman, Townspeople)
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by artist: Francis Poulenc
by artist: Renate Arends
by artist: Bernard Loonen
by artist: Mattijs van de Woerd
by artist: Maaike Beekman
by artist: Opera Trionfo
by artist: Nieuw Ensemble
by artist: Ed Spanjaard
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genre: early-modern-classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Willem Mengelberg: Selected Compositions
type: MusicAlbum
date published: 2023-10-03

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type: MusicAlbum
date published: 2024-09-13

Peter Benoit: Heaven and Hell (Live)
type: MusicAlbum
date published: 2024-03-01