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followers: 49
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additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-19T03:51:26Z
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album: Donizetti: Lucie de Lammermoor
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album: Rossini: Le Comte Ory
  type: MusicAlbum
  date published: 1989-08-11
album: Festival Offenbach
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  track: Offenbach: La Vie parisienne: Gaîté parisienne - Can-Can No. 4 (From Orphée aux enfers)
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    by artist: Manuel Rosenthal
    by artist: Orchestre National de l'Opéra de Monte-Carlo
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      date published: 2019-04-26
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    genre: french-opera
    genre: french-romanticism
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    additional property: OTSVerifyInstructions
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-08T03:22:41Z
    audio: Offenbach: La Vie parisienne: Gaîté parisienne - Can-Can No. 4 (From Orphée aux enfers)
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  track: Offenbach: La Grande-Duchesse de Gérolstein, Act 1: Overture
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    by artist: Felicity Lott
    by artist: Sandrine Piau
    by artist: Yann Beuron
    by artist: Choeur des Musiciens du Louvre
    by artist: Les Musiciens du Louvre
    by artist: Grenoble
    by artist: Marc Minkowski
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    additional property: OTSVerifyInstructions
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      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-02T11:38:34Z
    audio: Offenbach: La Grande-Duchesse de Gérolstein, Act 1: Overture
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  track: Offenbach: Les Brigands: Ouverture
album: Zeit für große Opern
album: De l'opéra à la chanson
album: ReJOYCE!
album: Stella di Napoli
album: Offenbach: Les contes d'Hoffmann
album: Prokofiev: L'Amour des trois oranges
album: The Miracle of the Voice
album: Bellini Hits
album: "Diva, Divo"
album: 2012 - The Classical Album

Bellini: La Sonnambula, Act II: "Ah! no credea mirarti" (Amina/Teresa/Rodolfo/Elvino/Alessio/Coro)
type: MusicRecording
duration: PT8M22S
duration ms: 502480
explicit: false
by artist: Vincenzo Bellini
by artist: Evelino Pidò/Natalie Dessay/Carlo Colombara/Francesco Meli/Sara Mingardo/Orchestre de l'Opéra National de Lyon/Choeurs de l'Opéra National de Lyon
by artist: Carlo Colombara
by artist: Choeur De l'Opéra National De Lyon
by artist: Francesco Meli
by artist: Natalie Dessay
by artist: Orchestre De L'Opéra National De Lyon
by artist: Paul Gay
by artist: Sara Mingardo
by artist: Evelino Pidò
in album: De l'opéra à la chanson
  type: MusicAlbum
  date published: 2014-11-17
popularity: 1
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T08:26:41Z
audio: Bellini: La Sonnambula, Act II: "Ah! no credea mirarti" (Amina/Teresa/Rodolfo/Elvino/Alessio/Coro)
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Donizetti: Maria Stuarda, Act 3: "Io vi rivedo alfin... Deh! Tu di un'umile preghiera" (Maria)
type: MusicRecording
duration: PT8M4S
duration ms: 484125
explicit: false
by artist: Gaetano Donizetti
by artist: Joyce DiDonato
by artist: Choeur De l'Opéra National De Lyon
by artist: Orchestre De L'Opéra National De Lyon
by artist: Riccardo Minasi
in album: Stella di Napoli
  type: MusicAlbum
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genre: opera
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Donizetti: Maria Stuarda, Act 3: "Io vi rivedo alfin... Deh! Tu di un'umile preghiera" (Maria)
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Rossini: Zelmira, Act 2: "Riedi al soglio" (Zelmira, Polidoro, Ilo)
type: MusicRecording
duration: PT8M13S
duration ms: 493364
explicit: false
by artist: Gioachino Rossini
by artist: Joyce DiDonato
by artist: Choeur De l'Opéra National De Lyon
by artist: Nabil Suliman
by artist: Orchestre De L'Opéra National De Lyon
by artist: Riccardo Minasi
by artist: Rémi Mathieu
in album: Stella di Napoli
  type: MusicAlbum
  date published: 2014-08-29
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T10:20:10Z
audio: Rossini: Zelmira, Act 2: "Riedi al soglio" (Zelmira, Polidoro, Ilo)
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Offenbach: Les contes d'Hoffmann, Act 1: "La vérité, dit-on, sortait d'un puits" - "Quelle Muse" (La Muse, Chœur)
type: MusicRecording
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by artist: Kent Nagano
by artist: Catherine Dubosc
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  date published: 1996
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
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genre: operetta
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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/FRZ209616803
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14903e31ce96201e6001a564305c2d0bec3da4d86d3da736959f47b36a5faf55. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209616803.
  date published: 2026-07-08T03:22:41Z
audio: Offenbach: Les contes d'Hoffmann, Act 1: "La vérité, dit-on, sortait d'un puits" - "Quelle Muse" (La Muse, Chœur)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.002
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.38
  additional property: Energy
    type: PropertyValue
    value: 0.022
  additional property: Speechiness
    type: PropertyValue
    value: 0.069
  additional property: Acousticness
    type: PropertyValue
    value: 0.982
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.164
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.176
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.252
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Offenbach: Les contes d'Hoffmann, Act 1: "Elle est sur la scène, un peuple l'acclame" (La Muse, Chœur)
type: MusicRecording
duration: PT1M36S
duration ms: 96333
explicit: false
by artist: Jacques Offenbach
by artist: Kent Nagano
by artist: Catherine Dubosc
by artist: Choeur De l'Opéra National De Lyon
by artist: Orchestre De L'Opéra National De Lyon
in album: Offenbach: Les contes d'Hoffmann
  type: MusicAlbum
  date published: 1996
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
isrc code: FRZ209616804
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T03:19:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe5df107b3d58613c90fbab43ea0f158f7c2b2b06a5bcb63d145952e9d1d5b207
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/FRZ209616804
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5df107b3d58613c90fbab43ea0f158f7c2b2b06a5bcb63d145952e9d1d5b207. 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/FRZ209616804.
  date published: 2026-07-08T03:20:19Z
audio: Offenbach: Les contes d'Hoffmann, Act 1: "Elle est sur la scène, un peuple l'acclame" (La Muse, Chœur)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.352
  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: 0.462
  additional property: Energy
    type: PropertyValue
    value: 0.042
  additional property: Speechiness
    type: PropertyValue
    value: 0.061
  additional property: Acousticness
    type: PropertyValue
    value: 0.975
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.128
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.139
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.027
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Offenbach: Les contes d'Hoffmann, Act 1: "Drig ! drig ! drig !" (Chœur, Hermann, Luther, Wilhelm, Wolfram, Nathanaël)
type: MusicRecording
duration: PT3M0S
duration ms: 180133
explicit: false
by artist: Jacques Offenbach
by artist: Kent Nagano
by artist: Jean Delescluse
by artist: Benoît Boutet
by artist: Gérard Théruel
by artist: Jean-Marie Fremeau
by artist: Christophe Lacassagne
by artist: Choeur De l'Opéra National De Lyon
by artist: Orchestre De L'Opéra National De Lyon
in album: Offenbach: Les contes d'Hoffmann
  type: MusicAlbum
  date published: 1996
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
isrc code: FRZ209616809
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T22:29:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb59c5426d65d419b8f61a416816e7293755c68f7526ad0f1a169054553d8578b
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/FRZ209616809
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb59c5426d65d419b8f61a416816e7293755c68f7526ad0f1a169054553d8578b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209616809.
  date published: 2026-07-08T03:22:41Z
audio: Offenbach: Les contes d'Hoffmann, Act 1: "Drig ! drig ! drig !" (Chœur, Hermann, Luther, Wilhelm, Wolfram, Nathanaël)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.457
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.36
  additional property: Energy
    type: PropertyValue
    value: 0.25
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.971
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.647
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.416
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.699
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Offenbach: Les contes d'Hoffmann, Act 1: "Bonjour, amis !" (Hoffmann, Nicklausse, Nathanaël, Wilhelm, Wolfram, Hermann, Chœur)
type: MusicRecording
duration: PT2M15S
duration ms: 135573
explicit: false
by artist: Jacques Offenbach
by artist: Kent Nagano
by artist: Catherine Dubosc
by artist: Roberto Alagna
by artist: Benoît Boutet
by artist: Jean Delescluse
by artist: Gérard Théruel
by artist: Christophe Lacassagne
by artist: Choeur De l'Opéra National De Lyon
by artist: Orchestre De L'Opéra National De Lyon
in album: Offenbach: Les contes d'Hoffmann
  type: MusicAlbum
  date published: 1996
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
isrc code: FRZ209616812
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T22:15:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfad5d4af0e17dec99f870767607e9838753da039d73b1253ff852265e7b339a8
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/FRZ209616812
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad5d4af0e17dec99f870767607e9838753da039d73b1253ff852265e7b339a8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRZ209616812.
  date published: 2026-07-08T03:53:27Z
audio: Offenbach: Les contes d'Hoffmann, Act 1: "Bonjour, amis !" (Hoffmann, Nicklausse, Nathanaël, Wilhelm, Wolfram, Hermann, Chœur)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 50
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0
  additional property: Energy
    type: PropertyValue
    value: 0.13
  additional property: Speechiness
    type: PropertyValue
    value: 0
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.228
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.259
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Offenbach: Les contes d'Hoffmann, Act 1: "Messieurs, on va lever le rideau !" (Luther, Nathanaël, Lindorf, Nicklausse, Chœur)
type: MusicRecording
duration: PT1M44S
duration ms: 104360
explicit: false
by artist: Jacques Offenbach
by artist: Kent Nagano
by artist: Catherine Dubosc
by artist: Benoît Boutet
by artist: Jean-Marie Fremeau
by artist: José van Dam
by artist: Choeur De l'Opéra National De Lyon
by artist: Orchestre De L'Opéra National De Lyon
in album: Offenbach: Les contes d'Hoffmann
  type: MusicAlbum
  date published: 1996
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
isrc code: FRZ209616819
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T10:34:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0c2e3098bb0a9ff9ede24e8905e550e6da9d974fe4d3fbacf69e8d445c0f3105
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/FRZ209616819
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2e3098bb0a9ff9ede24e8905e550e6da9d974fe4d3fbacf69e8d445c0f3105. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRZ209616819.
  date published: 2026-07-08T08:56:20Z
audio: Offenbach: Les contes d'Hoffmann, Act 1: "Messieurs, on va lever le rideau !" (Luther, Nathanaël, Lindorf, Nicklausse, Chœur)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.678
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.328
  additional property: Energy
    type: PropertyValue
    value: 0.155
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.983
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.051
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.162
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.026
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Offenbach: Les contes d'Hoffmann, Act 2: "Non aucun hôte vraiment ne reçoit plus richement !" (Chœur)
type: MusicRecording
duration: PT1M45S
duration ms: 105693
explicit: false
by artist: Jacques Offenbach
by artist: Kent Nagano
by artist: Choeur De l'Opéra National De Lyon
by artist: Orchestre De L'Opéra National De Lyon
in album: Offenbach: Les contes d'Hoffmann
  type: MusicAlbum
  date published: 1996
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
isrc code: FRZ209616831
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T02:28:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x945fba377b2f3c0886296b96057b355072ad0392e4bc54b13a6a70ceaf9528bc
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/FRZ209616831
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945fba377b2f3c0886296b96057b355072ad0392e4bc54b13a6a70ceaf9528bc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRZ209616831.
  date published: 2026-07-08T03:53:27Z
audio: Offenbach: Les contes d'Hoffmann, Act 2: "Non aucun hôte vraiment ne reçoit plus richement !" (Chœur)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.225
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.533
  additional property: Energy
    type: PropertyValue
    value: 0.159
  additional property: Speechiness
    type: PropertyValue
    value: 0.029
  additional property: Acousticness
    type: PropertyValue
    value: 0.98
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.153
  additional property: Liveness
    type: PropertyValue
    value: 0.249
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.405
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.182
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Offenbach: Les contes d'Hoffmann, Act 1: "Glou! Glou!" (Chœur)
type: MusicRecording
duration: PT2M14S
duration ms: 134200
explicit: false
by artist: Jacques Offenbach
by artist: Kent Nagano
by artist: Choeur De l'Opéra National De Lyon
by artist: Orchestre De L'Opéra National De Lyon
in album: Offenbach: Les contes d'Hoffmann
  type: MusicAlbum
  date published: 1996
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d34883256733189530f3ae389c4cfee8d7e16e07f9a4add956cf0208ccd865. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/FRZ209616802.
  date published: 2026-07-30T05:43:45Z
audio: Offenbach: Les contes d'Hoffmann, Act 1: "Glou! Glou!" (Chœur)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 151.905
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.427
  additional property: Energy
    type: PropertyValue
    value: 0.165
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.982
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.473
  additional property: Liveness
    type: PropertyValue
    value: 0.095
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.207
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.642
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: FRZ209616802
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960212
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T05:43:45+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209616802
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960212
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960212
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T05:43:45+00:00
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

Offenbach: Les contes d'Hoffmann, Act 1: "Vrai Dieu ! Mes amis, la belle créature !" (Nathanaël, Hermann, Chœur)
type: MusicRecording
duration: PT0M44S
duration ms: 44840
explicit: false
by artist: Jacques Offenbach
by artist: Kent Nagano
by artist: Benoît Boutet
by artist: Gérard Théruel
by artist: Choeur De l'Opéra National De Lyon
by artist: Orchestre De L'Opéra National De Lyon
in album: Offenbach: Les contes d'Hoffmann
  type: MusicAlbum
  date published: 1996
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902f0c72d79413a4727e478f4ea84f6e00085c1f6a92da258513dd5eb02b24eb. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/FRZ209616810.
  date published: 2026-07-30T17:23:26Z
audio: Offenbach: Les contes d'Hoffmann, Act 1: "Vrai Dieu ! Mes amis, la belle créature !" (Nathanaël, Hermann, Chœur)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.293
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.552
  additional property: Energy
    type: PropertyValue
    value: 0.114
  additional property: Speechiness
    type: PropertyValue
    value: 0.162
  additional property: Acousticness
    type: PropertyValue
    value: 0.982
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.28
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.45
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.538
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: FRZ209616810
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960284
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T17:23:26+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209616810
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960284
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960284
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T17:23:26+00:00
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

Offenbach: Les contes d'Hoffmann, Act 1: "Eh ! Luther ! Ma grosse tonne !" (Nathanaël, Wilhelm, Hermann, Lindorf, Luther, Chœur)
type: MusicRecording
duration: PT0M46S
duration ms: 46760
explicit: false
by artist: Jacques Offenbach
by artist: Kent Nagano
by artist: Benoît Boutet
by artist: Gérard Théruel
by artist: Jean-Marie Fremeau
by artist: Christophe Lacassagne
by artist: José van Dam
by artist: Choeur De l'Opéra National De Lyon
by artist: Orchestre De L'Opéra National De Lyon
in album: Offenbach: Les contes d'Hoffmann
  type: MusicAlbum
  date published: 1996
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661cbbfbc818b62bd5a5a6b2b549e0e979d5cb8cf156a8a35a8febb65a3234b4. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209616811.
  date published: 2026-07-30T14:36:16Z
audio: Offenbach: Les contes d'Hoffmann, Act 1: "Eh ! Luther ! Ma grosse tonne !" (Nathanaël, Wilhelm, Hermann, Lindorf, Luther, Chœur)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.173
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.405
  additional property: Energy
    type: PropertyValue
    value: 0.151
  additional property: Speechiness
    type: PropertyValue
    value: 0.063
  additional property: Acousticness
    type: PropertyValue
    value: 0.943
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.378
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.355
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.015
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: FRZ209616811
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960264
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T14:36:16+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209616811
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960264
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960264
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T14:36:16+00:00
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

Offenbach: Les contes d'Hoffmann, Act 1: "Va pour Kleinzach ! ... Il était une fois à la cour d'Eisenach" (Hoffmann, Nathanaël, Chœur)
type: MusicRecording
duration: PT4M58S
duration ms: 298893
explicit: false
by artist: Jacques Offenbach
by artist: Kent Nagano
by artist: Roberto Alagna
by artist: Benoît Boutet
by artist: Choeur De l'Opéra National De Lyon
by artist: Orchestre De L'Opéra National De Lyon
in album: Offenbach: Les contes d'Hoffmann
  type: MusicAlbum
  date published: 1996
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002cf64a5bd5b949ba480fae49942ee5df3cd7471311eff6c69396d5d1ca37af. 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/FRZ209616813.
  date published: 2026-07-29T21:09:47Z
audio: Offenbach: Les contes d'Hoffmann, Act 1: "Va pour Kleinzach ! ... Il était une fois à la cour d'Eisenach" (Hoffmann, Nathanaël, Chœur)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.073
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.344
  additional property: Energy
    type: PropertyValue
    value: 0.278
  additional property: Speechiness
    type: PropertyValue
    value: 0.063
  additional property: Acousticness
    type: PropertyValue
    value: 0.958
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.207
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.272
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.502
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: FRZ209616813
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960144
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T21:09:47+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209616813
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960144
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960144
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T21:09:47+00:00
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

Offenbach: Les contes d'Hoffmann, Act 1: "Peuh ! Cette bière est détestable" (Hoffmann, Nicklausse, Nathanaël, Lindorf, Chœur)
type: MusicRecording
duration: PT2M4S
duration ms: 124800
explicit: false
by artist: Jacques Offenbach
by artist: Kent Nagano
by artist: Catherine Dubosc
by artist: Roberto Alagna
by artist: Benoît Boutet
by artist: José van Dam
by artist: Choeur De l'Opéra National De Lyon
by artist: Orchestre De L'Opéra National De Lyon
in album: Offenbach: Les contes d'Hoffmann
  type: MusicAlbum
  date published: 1996
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b927c2f9c14492de72ceaa16c51a24e44b74ef5c1f11bee29a71eb2f025fd2f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209616814.
  date published: 2026-07-30T15:42:38Z
audio: Offenbach: Les contes d'Hoffmann, Act 1: "Peuh ! Cette bière est détestable" (Hoffmann, Nicklausse, Nathanaël, Lindorf, Chœur)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 141.13
  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: 0.403
  additional property: Energy
    type: PropertyValue
    value: 0.245
  additional property: Speechiness
    type: PropertyValue
    value: 0.115
  additional property: Acousticness
    type: PropertyValue
    value: 0.955
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.59
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.286
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.416
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: FRZ209616814
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960273
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T15:42:38+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209616814
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960273
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960273
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T15:42:38+00:00
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

Offenbach: Les contes d'Hoffmann, Act 1: "Ma maîtresse ?" (Hoffmann, Nicklausse, Chœur)
type: MusicRecording
duration: PT1M31S
duration ms: 91266
explicit: false
by artist: Jacques Offenbach
by artist: Kent Nagano
by artist: Catherine Dubosc
by artist: Roberto Alagna
by artist: Choeur De l'Opéra National De Lyon
by artist: Orchestre De L'Opéra National De Lyon
in album: Offenbach: Les contes d'Hoffmann
  type: MusicAlbum
  date published: 1996
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x559ae3cd18fc6bf62998abfaede35276ebecf9cc9c5e7a91c6b0b14e5c6b9166. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209616818.
  date published: 2026-07-31T08:26:41Z
audio: Offenbach: Les contes d'Hoffmann, Act 1: "Ma maîtresse ?" (Hoffmann, Nicklausse, Chœur)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.629
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.406
  additional property: Energy
    type: PropertyValue
    value: 0.077
  additional property: Speechiness
    type: PropertyValue
    value: 0.073
  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.676
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.148
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.482
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: FRZ209616818
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960368
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T08:26:41+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209616818
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: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T08:26:41+00:00
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

Offenbach: Les contes d'Hoffmann, Act 2: "Mesdames et messieurs, je vous présente ma fille Olympia" (Spalanzani, Hoffmann, Nicklausse, Chœur)
type: MusicRecording
duration: PT0M50S
duration ms: 50440
explicit: false
by artist: Jacques Offenbach
by artist: Kent Nagano
by artist: Catherine Dubosc
by artist: Roberto Alagna
by artist: Michel Sénéchal
by artist: Choeur De l'Opéra National De Lyon
by artist: Orchestre De L'Opéra National De Lyon
in album: Offenbach: Les contes d'Hoffmann
  type: MusicAlbum
  date published: 1996
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4f3f93e37c29172460683162a44b3819beba626bf92e890c7ea6984d12ad55. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209616833.
  date published: 2026-07-31T08:26:41Z
audio: Offenbach: Les contes d'Hoffmann, Act 2: "Mesdames et messieurs, je vous présente ma fille Olympia" (Spalanzani, Hoffmann, Nicklausse, Chœur)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.235
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.488
  additional property: Energy
    type: PropertyValue
    value: 0.268
  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.882
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
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    value: 0.111
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.628
  additional property: Loudness (dB)
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    value: -23.968
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: FRZ209616833
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960368
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T08:26:41+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209616833
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: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T08:26:41+00:00
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

Offenbach: Les contes d'Hoffmann, Act 2: "Mesdames et messieurs, fière de vos bravos" (Spalanzani, Nicklausse, Hoffmann, Olympia, Cochenille, Chœur)
type: MusicRecording
duration: PT1M38S
duration ms: 98000
explicit: false
by artist: Jacques Offenbach
by artist: Kent Nagano
by artist: Natalie Dessay
by artist: Catherine Dubosc
by artist: Roberto Alagna
by artist: Michel Sénéchal
by artist: Gilles Ragon
by artist: Choeur De l'Opéra National De Lyon
by artist: Orchestre De L'Opéra National De Lyon
in album: Offenbach: Les contes d'Hoffmann
  type: MusicAlbum
  date published: 1996
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab87f22d87dd22066c60495c73816611931600b889b6d080f7aace2b11e9c690. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FRZ209616834.
  date published: 2026-07-31T00:26:26Z
audio: Offenbach: Les contes d'Hoffmann, Act 2: "Mesdames et messieurs, fière de vos bravos" (Spalanzani, Nicklausse, Hoffmann, Olympia, Cochenille, Chœur)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 86.034
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.489
  additional property: Energy
    type: PropertyValue
    value: 0.101
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.113
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.315
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.68
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: FRZ209616834
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960327
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T00:26:26+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209616834
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960327
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960327
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T00:26:26+00:00
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

Offenbach: Les contes d'Hoffmann, Act 2: Chanson d'Olympia. "Les oiseaux dans la charmille" (Olympia, Chœur)
type: MusicRecording
duration: PT5M32S
duration ms: 332640
explicit: false
by artist: Jacques Offenbach
by artist: Kent Nagano
by artist: Natalie Dessay
by artist: Choeur De l'Opéra National De Lyon
by artist: Orchestre De L'Opéra National De Lyon
in album: Offenbach: Les contes d'Hoffmann
  type: MusicAlbum
  date published: 1996
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53774709ed76ae0efa7ebf8945f2e32122542bdfb09a4e2a273277a3cf76de2c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209616835.
  date published: 2026-07-29T19:35:34Z
audio: Offenbach: Les contes d'Hoffmann, Act 2: Chanson d'Olympia. "Les oiseaux dans la charmille" (Olympia, Chœur)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 141.095
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.413
  additional property: Energy
    type: PropertyValue
    value: 0.097
  additional property: Speechiness
    type: PropertyValue
    value: 0.057
  additional property: Acousticness
    type: PropertyValue
    value: 0.919
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.061
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.333
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.591
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: FRZ209616835
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
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additional property: TokenDeploymentConfirmed
  type: PropertyValue
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additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960138
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T19:35:34+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209616835
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960138
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960138
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T19:35:34+00:00
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

Offenbach: Les contes d'Hoffmann, Act 2: "Ah ! Mon ami ! Quel accent !" (Hoffmann, Nicklausse, Spalanzani, Olympia, Cochenille, Chœur)
type: MusicRecording
duration: PT2M7S
duration ms: 127066
explicit: false
by artist: Jacques Offenbach
by artist: Kent Nagano
by artist: Natalie Dessay
by artist: Catherine Dubosc
by artist: Roberto Alagna
by artist: Michel Sénéchal
by artist: Gilles Ragon
by artist: Choeur De l'Opéra National De Lyon
by artist: Orchestre De L'Opéra National De Lyon
in album: Offenbach: Les contes d'Hoffmann
  type: MusicAlbum
  date published: 1996
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f16c98ac39b772a3e3565e02aaea627d9c391bf93a83fb53cbc7fa2541a004. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FRZ209616836.
  date published: 2026-07-31T02:19:15Z
audio: Offenbach: Les contes d'Hoffmann, Act 2: "Ah ! Mon ami ! Quel accent !" (Hoffmann, Nicklausse, Spalanzani, Olympia, Cochenille, Chœur)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.053
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.472
  additional property: Energy
    type: PropertyValue
    value: 0.119
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.264
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.313
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.574
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: FRZ209616836
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960334
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T02:19:15+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209616836
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960334
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960334
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T02:19:15+00:00
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

Offenbach: Les contes d'Hoffmann, Act 2: "En place, les danseurs !" (Spalanzani, Cochenille, Hoffmann, Olympia, Nicklausse, Chœur)
type: MusicRecording
duration: PT1M21S
duration ms: 81640
explicit: false
by artist: Jacques Offenbach
by artist: Kent Nagano
by artist: Natalie Dessay
by artist: Catherine Dubosc
by artist: Roberto Alagna
by artist: Michel Sénéchal
by artist: Gilles Ragon
by artist: Choeur De l'Opéra National De Lyon
by artist: Orchestre De L'Opéra National De Lyon
in album: Offenbach: Les contes d'Hoffmann
  type: MusicAlbum
  date published: 1996
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a322f67adb9d1c6dfeb27d4bc78b820004a06d2288ab8dc42ba03850769a608. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/FRZ209616841.
  date published: 2026-07-31T04:14:58Z
audio: Offenbach: Les contes d'Hoffmann, Act 2: "En place, les danseurs !" (Spalanzani, Cochenille, Hoffmann, Olympia, Nicklausse, Chœur)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 91.816
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.385
  additional property: Energy
    type: PropertyValue
    value: 0.241
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.908
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.032
  additional property: Liveness
    type: PropertyValue
    value: 0.205
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.5
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.054
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: FRZ209616841
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960344
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T04:14:58+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209616841
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960344
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960344
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T04:14:58+00:00
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

Offenbach: Les contes d'Hoffmann, Act 2: "Voilà ! Assez, assez ma fille !" (Spalanzani, Olympia, Cochenille, Nicklausse, Chœur)
type: MusicRecording
duration: PT1M26S
duration ms: 86693
explicit: false
by artist: Jacques Offenbach
by artist: Kent Nagano
by artist: Natalie Dessay
by artist: Catherine Dubosc
by artist: Michel Sénéchal
by artist: Gilles Ragon
by artist: Choeur De l'Opéra National De Lyon
by artist: Orchestre De L'Opéra National De Lyon
in album: Offenbach: Les contes d'Hoffmann
  type: MusicAlbum
  date published: 1996
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e38b6967855052df6e441defc9a04c91cf199f76e278ab54ee3cc4676bd097b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209616842.
  date published: 2026-07-30T14:36:16Z
audio: Offenbach: Les contes d'Hoffmann, Act 2: "Voilà ! Assez, assez ma fille !" (Spalanzani, Olympia, Cochenille, Nicklausse, Chœur)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 98.808
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.429
  additional property: Energy
    type: PropertyValue
    value: 0.13
  additional property: Speechiness
    type: PropertyValue
    value: 0.09
  additional property: Acousticness
    type: PropertyValue
    value: 0.927
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.433
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.337
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.205
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: FRZ209616842
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960264
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T14:36:16+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209616842
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960264
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960264
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T14:36:16+00:00
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

Offenbach: Les contes d'Hoffmann, Act 2: "Ah ! Quoi ? L'homme aux lunettes, là !" (Cochenille, Spalanzani, Hoffmann, Coppélius, Nicklausse, Chœur)
type: MusicRecording
duration: PT1M20S
duration ms: 80173
explicit: false
by artist: Jacques Offenbach
by artist: Kent Nagano
by artist: Catherine Dubosc
by artist: Roberto Alagna
by artist: Michel Sénéchal
by artist: Gilles Ragon
by artist: José van Dam
by artist: Choeur De l'Opéra National De Lyon
by artist: Orchestre De L'Opéra National De Lyon
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  date published: 2026-07-31T09:09:19Z
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Donizetti: Lucie de Lammermoor, Act 3: "Ah ! C'est l'hymne des noces" (Lucie, Raymond, Chœur)
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  date published: 2026-07-08T08:56:20Z
audio: Donizetti: Lucie de Lammermoor, Act 3: "Ah ! C'est l'hymne des noces" (Lucie, Raymond, Chœur)
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Offenbach: Les Brigands: Ouverture
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Zeit für große Opern
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De l'opéra à la chanson
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track: Verdi: La Traviata, Act 1: "È strano! È strano!...Ah, fors' è lui... Follie follie... Sempre libera" (Violetta) - extract
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    date published: 2026-07-08T08:56:20Z
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track: Mozart: Die Zauberflöte, K. 620, Act 2: "Der Hölle Rache kocht in meinem Herzen" (Königin der Nacht)
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  audio: Mozart: Die Zauberflöte, K. 620, Act 2: "Der Hölle Rache kocht in meinem Herzen" (Königin der Nacht)
track: Les Indes galantes : Les Sauvages - Danse du Calumet de la Paix et duo Forêts paisibles
track: Arlen: Somewhere Over the Rainbow (from "The Wizard of Oz")
track: Legrand: Les moulins de mon coeur (from the movie The Thomas Crown Affair)
track: Bellini: La Sonnambula, Act II: "Ah! no credea mirarti" (Amina/Teresa/Rodolfo/Elvino/Alessio/Coro)

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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:22:41Z

Mozart: Die Zauberflöte, K. 620, Act 2: "Der Hölle Rache kocht in meinem Herzen" (Königin der Nacht)
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Les Indes galantes : Les Sauvages - Danse du Calumet de la Paix et duo Forêts paisibles
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by artist: Le Concert d'Astrée
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x4d893b0ea571863417956793c4c3c63f5ff4928d80b7050b5948fc26ebe7bf2d
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1105237
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d893b0ea571863417956793c4c3c63f5ff4928d80b7050b5948fc26ebe7bf2d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBAYC1105237.
  date published: 2026-07-08T03:53:27Z
audio: Les Indes galantes : Les Sauvages - Danse du Calumet de la Paix et duo Forêts paisibles
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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
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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: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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Arlen: Somewhere Over the Rainbow (from "The Wizard of Oz")
type: MusicRecording
duration: PT6M46S
duration ms: 406868
explicit: false
by artist: Harold Arlen
by artist: Quatuor Ébène
in album: De l'opéra à la chanson
  type: MusicAlbum
  date published: 2014-11-17
popularity: 1
isrc code: GBAYC1001220
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: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1001220
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f16a294e766c6d79be065237fb3550be0c3f23f911119f0b9a3efe8bbca1767. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAYC1001220.
  date published: 2026-07-08T08:56:20Z
audio: Arlen: Somewhere Over the Rainbow (from "The Wizard of Oz")
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 101.866
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.157
  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
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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Legrand: Les moulins de mon coeur (from the movie The Thomas Crown Affair)
type: MusicRecording
duration: PT3M6S
duration ms: 186211
explicit: false
by artist: Michel Legrand
by artist: Natalie Dessay
by artist: Eddy Marnay
by artist: François Laizeau
by artist: Pierre Boussaguet
in album: De l'opéra à la chanson
  type: MusicAlbum
  date published: 2014-11-17
popularity: 2
isrc code: GBAYC1302306
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
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1302306
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30eb9ba3c735bdcd67ce80a9d5f202d86875d01c933eed028e77f851b72dd745. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAYC1302306.
  date published: 2026-07-08T08:56:20Z
audio: Legrand: Les moulins de mon coeur (from the movie The Thomas Crown Affair)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.598
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.52
  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)
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  additional property: Key Name
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  additional property: Mode Name
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    value: Minor

ReJOYCE!
type: MusicAlbum
date published: 2013-08-26
track: Handel: Serse, HWV 40, Act 1, Scene 1: Accompagnato. "Frondi tenere" - Arioso. "Ombra mai fù" (Serse)
  type: MusicRecording
  duration: PT3M44S
  duration ms: 224653
  explicit: false
  by artist: George Frideric Handel
  by artist: Joyce DiDonato
  by artist: Il Complesso Barocco
  by artist: Alan Curtis
  in album: ReJOYCE!
    type: MusicAlbum
    date published: 2013-08-26
  genre: classical
  genre: early-music
  genre: baroque
  genre: english-baroque
  genre: german-baroque
  isrc code: GBAYC1301902
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T10:09:21+00:00
  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0x5a90f2843394c64ce5eec39a2157a00360189d726414dee234ea457c66c14a32
  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/GBAYC1301902
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a90f2843394c64ce5eec39a2157a00360189d726414dee234ea457c66c14a32. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1301902.
    date published: 2026-07-08T03:22:41Z
  audio: Handel: Serse, HWV 40, Act 1, Scene 1: Accompagnato. "Frondi tenere" - Arioso. "Ombra mai fù" (Serse)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 128.537
    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
      type: PropertyValue
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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
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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)
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    additional property: Key Name
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    additional property: Mode Name
      type: PropertyValue
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track: Handel: Rodelinda, HWV 19, Act 2, Scene 7: Duetto. "Io t'abraccio" (Rodelinda, Bertarido)
  type: MusicRecording
  duration: PT6M39S
  duration ms: 399880
  explicit: false
  by artist: George Frideric Handel
  by artist: Joyce DiDonato
  by artist: Il Complesso Barocco
  by artist: Alan Curtis
  in album: ReJOYCE!
    type: MusicAlbum
    date published: 2013-08-26
  genre: classical
  genre: early-music
  genre: baroque
  genre: english-baroque
  genre: german-baroque
  isrc code: GBAYC1302091
  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: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1302091
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb73136a713a3b3d89478e45f6a0f87d36134f27ddc1111496596b3b5b0ea966. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1302091.
    date published: 2026-07-08T03:22:41Z
  audio: Handel: Rodelinda, HWV 19, Act 2, Scene 7: Duetto. "Io t'abraccio" (Rodelinda, Bertarido)
    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
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    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
      value: 0.972
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.126
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.09
    additional property: Loudness (dB)
      type: PropertyValue
      value: -25.047
    additional property: Key Name
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      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Mozart: Le nozze di Figaro, K. 492, Act 2: "Voi che sapete" (Cherubino)
  type: MusicRecording
  duration: PT2M52S
  duration ms: 172426
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Joyce DiDonato
  by artist: Kazushi Ono
  by artist: Orchestre De L'Opéra National De Lyon
  in album: ReJOYCE!
    type: MusicAlbum
    date published: 2013-08-26
  genre: classical
  genre: classical-era
  isrc code: GBAYC1002811
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Mozart: Le nozze di Figaro, K. 492, Act 2: "Voi che sapete" (Cherubino)
track: Mozart: Don Giovanni, K. 527, Act 2: "In quali eccessi, o numi... Mi tradi quell'alma ingrata" (Donna Elvira)
track: Rossini: Il barbiere di Siviglia, Act 1 Scene 5: No. 9, Cavatina, "Una voce poco fa" (Rosina)
track: Rossini: Maometto secondo, Act 1: "Giusto ciel, in tal periglio" (Anna, Chorus)

CopyrightID
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CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-11T22:53:51+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x85da1a23932cc5fb5db5e47cbb6d91c31638af43c468544d81bf7c9f8bc784bb

OTSHash
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OTSBitcoinBlock
type: PropertyValue
value: 957124

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957124

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1002811

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:53:27Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85da1a23932cc5fb5db5e47cbb6d91c31638af43c468544d81bf7c9f8bc784bb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBAYC1002811.
date published: 2026-07-08T03:53:27Z

Mozart: Le nozze di Figaro, K. 492, Act 2: "Voi che sapete" (Cherubino)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 129.036
additional property: Musical Key
  type: PropertyValue
  value: 0
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.32
additional property: Energy
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  value: 0.046
additional property: Speechiness
  type: PropertyValue
  value: 0.051
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
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additional property: Key Name
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additional property: Mode Name
  type: PropertyValue
  value: Minor

Mozart: Don Giovanni, K. 527, Act 2: "In quali eccessi, o numi... Mi tradi quell'alma ingrata" (Donna Elvira)
type: MusicRecording
duration: PT6M10S
duration ms: 370720
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Joyce DiDonato
by artist: Mahler Chamber Orchestra
in album: ReJOYCE!
  type: MusicAlbum
  date published: 2013-08-26
genre: classical
genre: classical-era
isrc code: DEN961130844
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
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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/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961130844
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
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  date published: 2026-07-08T03:22:41Z
audio: Mozart: Don Giovanni, K. 527, Act 2: "In quali eccessi, o numi... Mi tradi quell'alma ingrata" (Donna Elvira)
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Rossini: Il barbiere di Siviglia, Act 1 Scene 5: No. 9, Cavatina, "Una voce poco fa" (Rosina)
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by artist: Orchestra dell'Accademia Nazionale di Santa Cecilia
by artist: Edoardo Muller
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genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Rossini: Il barbiere di Siviglia, Act 1 Scene 5: No. 9, Cavatina, "Una voce poco fa" (Rosina)
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Rossini: Maometto secondo, Act 1: "Giusto ciel, in tal periglio" (Anna, Chorus)
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Rossini: Maometto secondo, Act 1: "Giusto ciel, in tal periglio" (Anna, Chorus)
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Stella di Napoli
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date published: 2014-08-29
track: Pacini: Stella di Napoli, Part I: "Ove t'aggiri, o barbaro" (Stella, Marta)
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
  audio: Pacini: Stella di Napoli, Part I: "Ove t'aggiri, o barbaro" (Stella, Marta)
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track: Bellini: Adelson e Salvini, Act 1: "Dopo l'oscuro nembo" (Nelly)
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-07T18:39:05Z
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track: Donizetti: Elisabetta al castello di Kenilworth, Act 3: "Par che mi dica ancora" (Amelia)
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  subject of: OpenTimestamps Proof of Existence
  audio: Donizetti: Elisabetta al castello di Kenilworth, Act 3: "Par che mi dica ancora" (Amelia)
track: Donizetti: Maria Stuarda, Act 3: "Io vi rivedo alfin... Deh! Tu di un'umile preghiera" (Maria)
track: Rossini: Zelmira, Act 2: "Riedi al soglio" (Zelmira, Polidoro, Ilo)

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OTSHash
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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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OTSVerifyInstructions
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value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
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date published: 2026-07-08T08:56:20Z

Donizetti: Elisabetta al castello di Kenilworth, Act 3: "Par che mi dica ancora" (Amelia)
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Offenbach: Les contes d'Hoffmann
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date published: 1996
track: Offenbach: Les contes d'Hoffmann, Act 1: "La vérité, dit-on, sortait d'un puits" - "Quelle Muse" (La Muse, Chœur)
track: Offenbach: Les contes d'Hoffmann, Act 1: "Elle est sur la scène, un peuple l'acclame" (La Muse, Chœur)
track: Offenbach: Les contes d'Hoffmann, Act 1: "Deux heures devant moi" - "Vite, vite qu'on se remue" (Lindorf, Luther)
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    date published: 1996
  genre: classical
  genre: german-romanticism
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  genre: french-romanticism
  genre: operetta
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
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    additional property: Key Name
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track: Offenbach: Les contes d'Hoffmann, Act 1: "Drig ! drig ! drig !" (Chœur, Hermann, Luther, Wilhelm, Wolfram, Nathanaël)
track: Offenbach: Les contes d'Hoffmann, Act 1: "Bonjour, amis !" (Hoffmann, Nicklausse, Nathanaël, Wilhelm, Wolfram, Hermann, Chœur)
track: Offenbach: Les contes d'Hoffmann, Act 1: "Messieurs, on va lever le rideau !" (Luther, Nathanaël, Lindorf, Nicklausse, Chœur)
track: Offenbach: Les contes d'Hoffmann, Act 2: "Allons ! Courage et confiance !" (Hoffmann)
  type: MusicRecording
  duration: PT0M56S
  duration ms: 56893
  explicit: false
  by artist: Jacques Offenbach
  by artist: Kent Nagano
  by artist: Roberto Alagna
  by artist: Orchestre De L'Opéra National De Lyon
  in album: Offenbach: Les contes d'Hoffmann
    type: MusicAlbum
    date published: 1996
  genre: classical
  genre: german-romanticism
  genre: late-romantic-era
  genre: french-opera
  genre: french-romanticism
  genre: operetta
  isrc code: FRZ209616822
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T06:56:51+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x62c6235657fd72b56104bc171b762c9fec5c4c6ac606f0061faf0ed12c028e29
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  additional property: OTSBitcoinBlock
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    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/FRZ209616822
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c6235657fd72b56104bc171b762c9fec5c4c6ac606f0061faf0ed12c028e29. 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/FRZ209616822.
    date published: 2026-07-08T03:20:19Z
  audio: Offenbach: Les contes d'Hoffmann, Act 2: "Allons ! Courage et confiance !" (Hoffmann)
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    additional property: Tempo (BPM)
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    additional property: Mode (Major/Minor)
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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: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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track: Offenbach: Les contes d'Hoffmann, Act 2: "Pardieu ! J'étais bien sûr de te trouver ici !" (Nicklausse, Hoffmann)
  type: MusicRecording
  duration: PT1M17S
  duration ms: 77333
  explicit: false
  by artist: Jacques Offenbach
  by artist: Kent Nagano
  by artist: Catherine Dubosc
  by artist: Roberto Alagna
  by artist: Orchestre De L'Opéra National De Lyon
  in album: Offenbach: Les contes d'Hoffmann
  genre: classical
  genre: german-romanticism
  genre: late-romantic-era
  genre: french-opera
  genre: french-romanticism
  genre: operetta
  isrc code: FRZ209616823
  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Offenbach: Les contes d'Hoffmann, Act 2: "Pardieu ! J'étais bien sûr de te trouver ici !" (Nicklausse, Hoffmann)
track: Offenbach: Les contes d'Hoffmann, Act 2: "Serviteur !" (Hoffmann, Coppélius, Nicklausse)
track: Offenbach: Les contes d'Hoffmann, Act 2: "Non aucun hôte vraiment ne reçoit plus richement !" (Chœur)
track: Offenbach: Les contes d'Hoffmann, Act 2: "Voleur ! Brigand ! Quelle déroute !" (Coppélius)
track: Offenbach: Les contes d'Hoffmann, Act 3: "Elle a fui, la tourterelle !" (Antonia)
track: Offenbach: Les contes d'Hoffmann, Act 3: "Jour et nuit, je me mets en quatre" (Frantz)
track: Offenbach: Les contes d'Hoffmann, Act 3: "Vois sous l'archet frémissant" (Nicklausse)
track: Offenbach: Les contes d'Hoffmann, Act 1: "Glou! Glou!" (Chœur)
track: Offenbach: Les contes d'Hoffmann, Act 1: "Vrai Dieu ! Mes amis, la belle créature !" (Nathanaël, Hermann, Chœur)
track: Offenbach: Les contes d'Hoffmann, Act 1: "Eh ! Luther ! Ma grosse tonne !" (Nathanaël, Wilhelm, Hermann, Lindorf, Luther, Chœur)
track: Offenbach: Les contes d'Hoffmann, Act 1: "Va pour Kleinzach ! ... Il était une fois à la cour d'Eisenach" (Hoffmann, Nathanaël, Chœur)
track: Offenbach: Les contes d'Hoffmann, Act 1: "Peuh ! Cette bière est détestable" (Hoffmann, Nicklausse, Nathanaël, Lindorf, Chœur)
track: Offenbach: Les contes d'Hoffmann, Act 1: "Ma maîtresse ?" (Hoffmann, Nicklausse, Chœur)
track: Offenbach: Les contes d'Hoffmann, Act 2: "Mesdames et messieurs, je vous présente ma fille Olympia" (Spalanzani, Hoffmann, Nicklausse, Chœur)
track: Offenbach: Les contes d'Hoffmann, Act 2: "Mesdames et messieurs, fière de vos bravos" (Spalanzani, Nicklausse, Hoffmann, Olympia, Cochenille, Chœur)
track: Offenbach: Les contes d'Hoffmann, Act 2: Chanson d'Olympia. "Les oiseaux dans la charmille" (Olympia, Chœur)
track: Offenbach: Les contes d'Hoffmann, Act 2: "Ah ! Mon ami ! Quel accent !" (Hoffmann, Nicklausse, Spalanzani, Olympia, Cochenille, Chœur)
track: Offenbach: Les contes d'Hoffmann, Act 2: "En place, les danseurs !" (Spalanzani, Cochenille, Hoffmann, Olympia, Nicklausse, Chœur)
track: Offenbach: Les contes d'Hoffmann, Act 2: "Voilà ! Assez, assez ma fille !" (Spalanzani, Olympia, Cochenille, Nicklausse, Chœur)
track: Offenbach: Les contes d'Hoffmann, Act 2: "Ah ! Quoi ? L'homme aux lunettes, là !" (Cochenille, Spalanzani, Hoffmann, Coppélius, Nicklausse, Chœur)

Jacques Offenbach
type: MusicGroup

Kent Nagano
type: MusicGroup

Catherine Dubosc
type: MusicGroup

Roberto Alagna
type: MusicGroup

Orchestre De L'Opéra National De Lyon
type: MusicGroup

Offenbach: Les contes d'Hoffmann
type: MusicAlbum
date published: 1996

CopyrightID
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CopyrightStatus
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CopyrightRegisteredAt
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CopyrightChainExplorerURL
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value: https://explorer.copyrightchains.com/tx/0x2d6dd89542a5f2861072a0ab4313a95f8e383ac20d28a526eca7ad288dc27115

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OTSBitcoinBlock
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value: 957120

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957120

OTSVerificationAPI
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value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209616823

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:22:41Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6dd89542a5f2861072a0ab4313a95f8e383ac20d28a526eca7ad288dc27115. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209616823.
date published: 2026-07-08T03:22:41Z

Offenbach: Les contes d'Hoffmann, Act 2: "Pardieu ! J'étais bien sûr de te trouver ici !" (Nicklausse, Hoffmann)
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
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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: Instrumentalness
  type: PropertyValue
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additional property: Liveness
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  value: 0.183
additional property: Valence (Positivity)
  type: PropertyValue
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additional property: Loudness (dB)
  type: PropertyValue
  value: -21.841
additional property: Key Name
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  value: Eb
additional property: Mode Name
  type: PropertyValue
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Offenbach: Les contes d'Hoffmann, Act 2: "Serviteur !" (Hoffmann, Coppélius, Nicklausse)
type: MusicRecording
duration: PT0M58S
duration ms: 58400
explicit: false
by artist: Jacques Offenbach
by artist: Kent Nagano
by artist: Catherine Dubosc
by artist: Roberto Alagna
by artist: José van Dam
by artist: Orchestre De L'Opéra National De Lyon
in album: Offenbach: Les contes d'Hoffmann
  type: MusicAlbum
  date published: 1996
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
isrc code: FRZ209616828
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:15:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xac953051ab4027bcfc5e290e3f06c9981e76bcb501c183303b6b1f96f2c82816
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209616828
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac953051ab4027bcfc5e290e3f06c9981e76bcb501c183303b6b1f96f2c82816. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRZ209616828.
  date published: 2026-07-08T03:53:27Z
audio: Offenbach: Les contes d'Hoffmann, Act 2: "Serviteur !" (Hoffmann, Coppélius, Nicklausse)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
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    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
    type: PropertyValue
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Mode Name
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Offenbach: Les contes d'Hoffmann, Act 2: "Voleur ! Brigand ! Quelle déroute !" (Coppélius)
type: MusicRecording
duration: PT0M49S
duration ms: 49133
explicit: false
by artist: Jacques Offenbach
by artist: Kent Nagano
by artist: José van Dam
by artist: Orchestre De L'Opéra National De Lyon
in album: Offenbach: Les contes d'Hoffmann
  type: MusicAlbum
  date published: 1996
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
isrc code: FRZ209616840
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T08:00:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa214cd7c5b212d11b518a5d6633a0432b553159f9e757c58fd03dd96f6f57e60
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/FRZ209616840
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa214cd7c5b212d11b518a5d6633a0432b553159f9e757c58fd03dd96f6f57e60. 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/FRZ209616840.
  date published: 2026-07-08T03:20:19Z
audio: Offenbach: Les contes d'Hoffmann, Act 2: "Voleur ! Brigand ! Quelle déroute !" (Coppélius)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 149.503
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.443
  additional property: Energy
    type: PropertyValue
    value: 0.181
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.972
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.022
  additional property: Liveness
    type: PropertyValue
    value: 0.183
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.129
  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: Minor

Offenbach: Les contes d'Hoffmann, Act 3: "Elle a fui, la tourterelle !" (Antonia)
type: MusicRecording
duration: PT3M36S
duration ms: 216733
explicit: false
by artist: Jacques Offenbach
by artist: Kent Nagano
by artist: Leontina Vaduva
by artist: Orchestre De L'Opéra National De Lyon
in album: Offenbach: Les contes d'Hoffmann
  type: MusicAlbum
  date published: 1996
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
isrc code: FRZ209616902
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T01:47:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x05e2feb23971465922edaf360dc025bf4dac162d9122bd3352a33a23d30a7e85
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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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/FRZ209616902
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e2feb23971465922edaf360dc025bf4dac162d9122bd3352a33a23d30a7e85. 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/FRZ209616902.
  date published: 2026-07-08T03:20:19Z
audio: Offenbach: Les contes d'Hoffmann, Act 3: "Elle a fui, la tourterelle !" (Antonia)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.028
  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: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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    value: 0.038
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.75
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Offenbach: Les contes d'Hoffmann, Act 3: "Jour et nuit, je me mets en quatre" (Frantz)
type: MusicRecording
duration: PT3M5S
duration ms: 185866
explicit: false
by artist: Jacques Offenbach
by artist: Kent Nagano
by artist: Gilles Ragon
by artist: Orchestre De L'Opéra National De Lyon
in album: Offenbach: Les contes d'Hoffmann
  type: MusicAlbum
  date published: 1996
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
isrc code: FRZ209616904
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T13:10:06+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209616904
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Offenbach: Les contes d'Hoffmann, Act 3: "Jour et nuit, je me mets en quatre" (Frantz)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
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Prokofiev: L'Amour des trois oranges
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:30:09Z
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
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  subject of: OpenTimestamps Proof of Existence
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track: Massenet: Manon, Act 3: Air du cours de la reine. "Suis-je gentille ainsi ?" (Manon, Chœur)
track: Handel: Il delirio amoroso, HWV 99: Aria. "Per te lasciai la luce"
track: Strauss, R: Ariadne auf Naxos, Op. 60, Opera: "Grossmächtige Prinzessin" - "Noch glaub'ich dem einem ganz mich gehörend" (Zerbinetta)
track: Gounod: Roméo et Juliette, Act 1: Valse. "Je veux vivre dans ce rêve" (Juliette)
track: Strauss II, J: Frühlingsstimmen, Op. 410
track: Rachmaninov: 14 Romances, Op. 34: No. 14, Vocalise
track: Alyabyev: Solovey
track: Donizetti: Lucie de Lammermoor, Act 3: "Elle s'avance, hélas, pauvre victime" (Raymond, Lucie)
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track: Rombi: Ave Maria
track: Bernstein: Candide, Act 1: "Glitter and Be Gay" (Cunégonde)
track: Offenbach: Orphée aux enfers, Act 2: Duo de la mouche. "Il m'a semblé sur mon épaule" (Eurydice, Jupiter)

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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:20:19Z

Mozart: Popoli di Tessaglia, K. 316
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Massenet: Manon, Act 3: Air du cours de la reine. "Suis-je gentille ainsi ?" (Manon, Chœur)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
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Strauss, R: Ariadne auf Naxos, Op. 60, Opera: "Grossmächtige Prinzessin" - "Noch glaub'ich dem einem ganz mich gehörend" (Zerbinetta)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
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Gounod: Roméo et Juliette, Act 1: Valse. "Je veux vivre dans ce rêve" (Juliette)
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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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Strauss II, J: Frühlingsstimmen, Op. 410
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  date published: 2026-07-06T07:53:57Z
audio: Strauss II, J: Frühlingsstimmen, Op. 410
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Rachmaninov: 14 Romances, Op. 34: No. 14, Vocalise
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audio: Rachmaninov: 14 Romances, Op. 34: No. 14, Vocalise
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Alyabyev: Solovey
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audio: Alyabyev: Solovey
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Donizetti: Lucie de Lammermoor, Act 3: "Elle s'avance, hélas, pauvre victime" (Raymond, Lucie)
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  date published: 2026-07-08T03:22:41Z
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Rombi: Ave Maria
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Rombi: Ave Maria
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Bernstein: Candide, Act 1: "Glitter and Be Gay" (Cunégonde)
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by artist: Natalie Dessay
by artist: London Philharmonic Orchestra
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genre: orchestra
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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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Offenbach: Orphée aux enfers, Act 2: Duo de la mouche. "Il m'a semblé sur mon épaule" (Eurydice, Jupiter)
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by artist: Natalie Dessay
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by artist: Orchestre de Chambre de Grenoble
by artist: Orchestre de l'Opéra de Lyon
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genre: classical
genre: german-romanticism
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Offenbach: Orphée aux enfers, Act 2: Duo de la mouche. "Il m'a semblé sur mon épaule" (Eurydice, Jupiter)
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Bellini Hits
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date published: 2016-10-19

"Diva, Divo"
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date published: 2011-01-24
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  by artist: Kazushi Ono
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    date published: 2026-07-08T03:22:41Z
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2012 - The Classical Album
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