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type: MusicGroup
genre: opera
popularity: 6
followers: 41
additional property: CopyrightID
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: 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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf348cdb854e9ba011516d9812bf0283410d88c5cbe096f79db77a8b78cfe95bb. Chain 2 (Bitcoin): anchored in block 954063 (2026-06-17T07:49:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/473a309d-e56d-462b-a47b-3829f366a968.json and https://artists.proofprofile.net/proofs/artist/473a309d-e56d-462b-a47b-3829f366a968.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T07:49:29Z
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track: Les Pêcheurs de perles, WD 13, Act I: Seule au milieu de nous
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  duration: PT7M25S
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  by artist: Georges Bizet
  by artist: Alexandre Bloch
  by artist: Orchestre National de Lille
  by artist: Cyrille Dubois
  by artist: Julie Fuchs
  by artist: Florian Sempey
  by artist: Luc Bertin-Hugault
  in album: Bizet: Les Pechêurs de perles (Live)
    type: MusicAlbum
    date published: 2018-05-01
  genre: classical
  genre: opera
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421702609
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T19:35:34Z
  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 0x7d1dca8704382a4206ee2969eafeb86229b548a8381e524dfe03cd2c3ad081e7. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NLE421702609 — a six-check JSON result.
    date published: 2026-07-29T19:35:34Z
  audio: Les Pêcheurs de perles, WD 13, Act I: Seule au milieu de nous
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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track: Les Pêcheurs de perles, WD 13, Act I: Le ciel est bleu!
  type: MusicRecording
  duration: PT1M56S
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  by artist: Georges Bizet
  by artist: Alexandre Bloch
  by artist: Orchestre National de Lille
  by artist: Cyrille Dubois
  by artist: Luc Bertin-Hugault
  in album: Bizet: Les Pechêurs de perles (Live)
    type: MusicAlbum
    date published: 2018-05-01
  genre: classical
  genre: opera
  isrc code: NLE421702612
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-29T10:11:25+00:00
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  additional property: OTSBitcoinBlock
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421702612
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T11:07:37Z
  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 0x275fd364ee9395450f60f518245f26b8aea36be73d2fd26d29a9bef328bca61a. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/NLE421702612 — a six-check JSON result.
    date published: 2026-07-29T11:07:37Z
  audio: Les Pêcheurs de perles, WD 13, Act I: Le ciel est bleu!
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    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Danceability
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    additional property: Instrumentalness
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    additional property: Valence (Positivity)
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track: Les Pêcheurs de perles, WD 13, Act II: L'ombre descend des cieux!
track: Les Pêcheurs de perles, WD 13, Act II: Ah ! Revenez à la raison
track: Les Pêcheurs de perles, WD 13, Act III: Entends au loin ce bruit de fête!
track: Les Pêcheurs de perles, WD 13, Act III: Sombres divinités
track: Les Pêcheurs de perles, WD 13, Act III: Ô lumière sainte, ô divine étreinte
track: Les Pêcheurs de perles, WD 13, Act III: Le jour enfin perce la nue!
track: O Lachrymae, LWV 26: I. O lachrymae
track: De profundis, LWV 62: I. De profundis clamavi ad te, domine

Acousticness
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Instrumentalness
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value: 0.018

Liveness
type: PropertyValue
value: 0.088

Valence (Positivity)
type: PropertyValue
value: 0.039

Loudness (dB)
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value: -27.921

Key Name
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Mode Name
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value: Major

Les Pêcheurs de perles, WD 13, Act II: L'ombre descend des cieux!
type: MusicRecording
duration: PT7M27S
duration ms: 447520
explicit: false
by artist: Georges Bizet
by artist: Alexandre Bloch
by artist: Orchestre National de Lille
by artist: Julie Fuchs
by artist: Luc Bertin-Hugault
by artist: Les Cris De Paris
in album: Bizet: Les Pechêurs de perles (Live)
  type: MusicAlbum
  date published: 2018-05-01
genre: classical
genre: opera
isrc code: NLE421702614
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
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
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421702614
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 0x31b100dd42e230a10bf7de71df255c31d6ba299b8239b996506bb8dd39ca39d1. 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/NLE421702614 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Les Pêcheurs de perles, WD 13, Act II: L'ombre descend des cieux!
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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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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Les Pêcheurs de perles, WD 13, Act II: Ah ! Revenez à la raison
type: MusicRecording
duration: PT10M12S
duration ms: 612852
explicit: false
by artist: Georges Bizet
by artist: Alexandre Bloch
by artist: Orchestre National de Lille
by artist: Cyrille Dubois
by artist: Julie Fuchs
by artist: Florian Sempey
by artist: Luc Bertin-Hugault
in album: Bizet: Les Pechêurs de perles (Live)
  type: MusicAlbum
  date published: 2018-05-01
genre: classical
genre: opera
isrc code: NLE421702618
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T18:47:13+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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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/NLE421702618
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 0x8aa58325f293146b1beaf923b6731fb9f6535543628286161be47e193a619871. 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/NLE421702618 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Les Pêcheurs de perles, WD 13, Act II: Ah ! Revenez à la raison
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Les Pêcheurs de perles, WD 13, Act III: Entends au loin ce bruit de fête!
type: MusicRecording
duration: PT2M2S
duration ms: 122400
explicit: false
by artist: Georges Bizet
by artist: Alexandre Bloch
by artist: Orchestre National de Lille
by artist: Florian Sempey
by artist: Julie Fuchs
by artist: Luc Bertin-Hugault
in album: Bizet: Les Pechêurs de perles (Live)
  type: MusicAlbum
  date published: 2018-05-01
genre: classical
genre: opera
isrc code: NLE421702622
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T12:55:59+00:00
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/NLE421702622
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T14:36:16Z
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 0x8911b9809b32902ea60c003344d4053823a84ba6a1fb7760f8a0fe19281e3672. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/NLE421702622 — a six-check JSON result.
  date published: 2026-07-30T14:36:16Z
audio: Les Pêcheurs de perles, WD 13, Act III: Entends au loin ce bruit de fête!
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Les Pêcheurs de perles, WD 13, Act III: Sombres divinités
type: MusicRecording
duration: PT1M22S
duration ms: 82853
explicit: false
by artist: Georges Bizet
by artist: Alexandre Bloch
by artist: Orchestre National de Lille
by artist: Cyrille Dubois
by artist: Julie Fuchs
by artist: Luc Bertin-Hugault
in album: Bizet: Les Pechêurs de perles (Live)
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  date published: 2018-05-01
genre: classical
genre: opera
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additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421702624
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T14:36:16Z
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 0x91e7dba6807e24268e1802e84da18dec98c5dc4971b15b790a953102b16d3138. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/NLE421702624 — a six-check JSON result.
  date published: 2026-07-30T14:36:16Z
audio: Les Pêcheurs de perles, WD 13, Act III: Sombres divinités
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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    value: 0.045
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.417
  additional property: Key Name
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    type: PropertyValue
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Les Pêcheurs de perles, WD 13, Act III: Ô lumière sainte, ô divine étreinte
type: MusicRecording
duration: PT2M59S
duration ms: 179520
explicit: false
by artist: Georges Bizet
by artist: Alexandre Bloch
by artist: Orchestre National de Lille
by artist: Cyrille Dubois
by artist: Julie Fuchs
by artist: Luc Bertin-Hugault
in album: Bizet: Les Pechêurs de perles (Live)
  type: MusicAlbum
  date published: 2018-05-01
genre: classical
genre: opera
isrc code: NLE421702625
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T07:53:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7f4efa9977cd1de20cd1d7884b198a8c49e22e43272fccd2bbba1867a0708925
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960225
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421702625
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T08:04:30Z
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 0x7f4efa9977cd1de20cd1d7884b198a8c49e22e43272fccd2bbba1867a0708925. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/NLE421702625 — a six-check JSON result.
  date published: 2026-07-30T08:04:30Z
audio: Les Pêcheurs de perles, WD 13, Act III: Ô lumière sainte, ô divine étreinte
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  additional property: Danceability
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
    value: Major

Les Pêcheurs de perles, WD 13, Act III: Le jour enfin perce la nue!
type: MusicRecording
duration: PT3M20S
duration ms: 200926
explicit: false
by artist: Georges Bizet
by artist: Alexandre Bloch
by artist: Orchestre National de Lille
by artist: Cyrille Dubois
by artist: Julie Fuchs
by artist: Florian Sempey
by artist: Luc Bertin-Hugault
in album: Bizet: Les Pechêurs de perles (Live)
  type: MusicAlbum
  date published: 2018-05-01
genre: classical
genre: opera
isrc code: NLE421702626
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T12:58:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4a4c8c38f679a37f140f163545431adac69a4f69a0007293977ed4738bdf0996
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960264
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421702626
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T14:36:16Z
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 0x4a4c8c38f679a37f140f163545431adac69a4f69a0007293977ed4738bdf0996. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/NLE421702626 — a six-check JSON result.
  date published: 2026-07-30T14:36:16Z
audio: Les Pêcheurs de perles, WD 13, Act III: Le jour enfin perce la nue!
  type: AudioObject
  additional property: Tempo (BPM)
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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
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.248
  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
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.414
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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O Lachrymae, LWV 26: I. O lachrymae
type: MusicRecording
duration: PT5M15S
duration ms: 315440
explicit: false
by artist: Jean-Baptiste Lully
by artist: Les Épopées
by artist: Stephane Fuget
by artist: Cyril Auvity
by artist: Serge Goubioud
by artist: Marc Mauillon
by artist: Marie Zaccarini
by artist: Ambroisine Bré
by artist: Marco Angioloni
by artist: Luc Bertin-Hugault
in album: Lully: Dies Irae
  type: MusicAlbum
  date published: 2021-02-12
genre: classical
genre: french-opera
genre: early-music
genre: baroque
genre: french-baroque
isrc code: FR9W12033451
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T19:17:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x14cf41ce16c97e2d2e6cdb6c694d868654e7979cb8d002e1c68f8fd588ddf169
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 960455
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960455
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W12033451
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T19:53:13Z
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 0x14cf41ce16c97e2d2e6cdb6c694d868654e7979cb8d002e1c68f8fd588ddf169. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W12033451 — a six-check JSON result.
  date published: 2026-07-31T19:53:13Z
audio: O Lachrymae, LWV 26: I. O lachrymae
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 139.628
  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: Speechiness
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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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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.934
  additional property: Key Name
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  additional property: Mode Name
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De profundis, LWV 62: I. De profundis clamavi ad te, domine
type: MusicRecording
duration: PT3M50S
duration ms: 230826
explicit: false
by artist: Jean-Baptiste Lully
by artist: Les Épopées
by artist: Stephane Fuget
by artist: Luc Bertin-Hugault
by artist: Cyril Auvity
in album: Lully: Dies Irae
  type: MusicAlbum
  date published: 2021-02-12
genre: classical
genre: french-opera
genre: early-music
genre: baroque
genre: french-baroque
isrc code: FR9W12033458
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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  value: 2026-07-31T16:34:28+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960441
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W12033458
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T17:29:52Z
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 0xd25a5d7f0b7232412f1f86ac35513470812627795ac89498eb00b5c0b3cd7efd. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FR9W12033458 — a six-check JSON result.
  date published: 2026-07-31T17:29:52Z
audio: De profundis, LWV 62: I. De profundis clamavi ad te, domine
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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    type: PropertyValue
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  additional property: Danceability
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