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track: Beethoven: Fidelio, Op. 72, Act 1: "Wo sind die Depeschen?" (Pizarro, Rocco)
track: Beethoven: Fidelio, Op. 72, Act 1: "Leb wohl, du warmes Sonnenlicht" (Chorus, Marzelline, Leonore, Jaquino, Pizarro, Rocco)
track: Beethoven: Fidelio, Op. 72, Act 1: "Ach! Vater, eilt!" (Marzelline, Rocco, Jaquino, Leonore, Pizarro)
track: Beethoven: Fidelio, Op. 72, Act 2: "Er sterbe! ... Vater Rocco!" (Pizarro, Florestan, Leonore, Rocco, Jaquino)
track: Beethoven: Fidelio, Op. 72, Act 1: "Ha! Welch' ein Augenblick!" (Pizarro, Chorus)
track: Beethoven: Fidelio, Op. 72, Act 1: "Jetzt, Alter, jetzt hat es Eile!" (Pizarro, Rocco)
track: Beethoven: Fidelio, Op. 72, Act 2: "Des besten Königs Wink und Wille" (Don Fernando, Chorus, Rocco, Pizarro, Leonore, Marzelline)
track: Beethoven: Fidelio, Op. 72, Act 2: "Es schlägt der Rache Stunde!" (Leonore, Florestan, Pizarro, Rocco)

Beethoven: Fidelio, Op. 72, Act 1: "Wo sind die Depeschen?" (Pizarro, Rocco)
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by artist: Sir Simon Rattle
by artist: Alan Held
by artist: László Polgár
by artist: Berliner Philharmoniker
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  date published: 2003-01-01
popularity: 6
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: OTSVerifyInstructions
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  date published: 2026-07-08T03:53:27Z
audio: Beethoven: Fidelio, Op. 72, Act 1: "Wo sind die Depeschen?" (Pizarro, Rocco)
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Beethoven: Fidelio, Op. 72, Act 1: "Leb wohl, du warmes Sonnenlicht" (Chorus, Marzelline, Leonore, Jaquino, Pizarro, Rocco)
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by artist: Rainer Trost
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  date published: 2026-07-08T03:53:27Z
audio: Beethoven: Fidelio, Op. 72, Act 1: "Leb wohl, du warmes Sonnenlicht" (Chorus, Marzelline, Leonore, Jaquino, Pizarro, Rocco)
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Beethoven: Fidelio, Op. 72, Act 1: "Ach! Vater, eilt!" (Marzelline, Rocco, Jaquino, Leonore, Pizarro)
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duration: PT2M12S
duration ms: 132640
explicit: false
by artist: Ludwig van Beethoven
by artist: Sir Simon Rattle
by artist: Alan Held
by artist: Angela Denoke
by artist: Juliane Banse
by artist: László Polgár
by artist: Rainer Trost
by artist: Berliner Philharmoniker
in album: Beethoven: Fidelio
  type: MusicAlbum
  date published: 2003-01-01
popularity: 5
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: GBAYC0301814
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additional property: OTSTimestamp
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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: Beethoven: Fidelio, Op. 72, Act 1: "Ach! Vater, eilt!" (Marzelline, Rocco, Jaquino, Leonore, Pizarro)
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Beethoven: Fidelio, Op. 72, Act 2: "Er sterbe! ... Vater Rocco!" (Pizarro, Florestan, Leonore, Rocco, Jaquino)
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by artist: László Polgár
by artist: Rainer Trost
by artist: Berliner Philharmoniker
in album: Beethoven: Fidelio
  type: MusicAlbum
  date published: 2003-01-01
popularity: 5
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: OTSVerifyInstructions
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  date published: 2026-07-08T03:20:19Z
audio: Beethoven: Fidelio, Op. 72, Act 2: "Er sterbe! ... Vater Rocco!" (Pizarro, Florestan, Leonore, Rocco, Jaquino)
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popularity: 8
genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T01:32:48Z
audio: Beethoven: Fidelio, Op. 72, Act 1: "Ha! Welch' ein Augenblick!" (Pizarro, Chorus)
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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

Beethoven: Fidelio, Op. 72, Act 1: "Jetzt, Alter, jetzt hat es Eile!" (Pizarro, Rocco)
type: MusicRecording
duration: PT5M18S
duration ms: 318586
explicit: false
by artist: Ludwig van Beethoven
by artist: Sir Simon Rattle
by artist: Berliner Philharmoniker
by artist: Alan Held
by artist: László Polgár
in album: Beethoven: Fidelio
  type: MusicAlbum
  date published: 2003-01-01
popularity: 7
genre: classical
genre: classical-piano
genre: chamber-music
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d71074100d782088bea2c9a540e65e13599e72e68e58cc4a0240c1be4d97465. 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/GBAYC0301808.
  date published: 2026-07-30T15:42:38Z
audio: Beethoven: Fidelio, Op. 72, Act 1: "Jetzt, Alter, jetzt hat es Eile!" (Pizarro, Rocco)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 149.05
  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: 0.354
  additional property: Energy
    type: PropertyValue
    value: 0.13
  additional property: Speechiness
    type: PropertyValue
    value: 0.056
  additional property: Acousticness
    type: PropertyValue
    value: 0.921
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.651
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.159
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.547
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBAYC0301808
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/GBAYC0301808
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

Beethoven: Fidelio, Op. 72, Act 2: "Des besten Königs Wink und Wille" (Don Fernando, Chorus, Rocco, Pizarro, Leonore, Marzelline)
type: MusicRecording
duration: PT4M37S
duration ms: 277280
explicit: false
by artist: Ludwig van Beethoven
by artist: Sir Simon Rattle
by artist: Alan Held
by artist: Angela Denoke
by artist: Juliane Banse
by artist: László Polgár
by artist: Thomas Quasthoff
by artist: Berliner Philharmoniker
in album: Beethoven: Fidelio
  type: MusicAlbum
  date published: 2003-01-01
popularity: 5
genre: classical
genre: classical-piano
genre: chamber-music
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a68a4a435765bcb4de9942cde16b0826a5e9303054ab2c15720b1d36e3c1e6. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/GBAYC0301828.
  date published: 2026-07-31T00:58:21Z
audio: Beethoven: Fidelio, Op. 72, Act 2: "Des besten Königs Wink und Wille" (Don Fernando, Chorus, Rocco, Pizarro, Leonore, Marzelline)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 116.44
  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: 0.308
  additional property: Energy
    type: PropertyValue
    value: 0.17
  additional property: Speechiness
    type: PropertyValue
    value: 0.054
  additional property: Acousticness
    type: PropertyValue
    value: 0.953
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.155
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.184
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.093
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBAYC0301828
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: 960330
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T00:58:21+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0301828
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960330
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960330
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T00:58:21+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

Beethoven: Fidelio, Op. 72, Act 2: "Es schlägt der Rache Stunde!" (Leonore, Florestan, Pizarro, Rocco)
type: MusicRecording
duration: PT1M8S
duration ms: 68506
explicit: false
by artist: Ludwig van Beethoven
by artist: Sir Simon Rattle
by artist: Alan Held
by artist: Angela Denoke
by artist: Jon Villars
by artist: László Polgár
by artist: Berliner Philharmoniker
in album: Beethoven: Fidelio
  type: MusicAlbum
  date published: 2003-01-01
popularity: 4
genre: classical
genre: classical-piano
genre: chamber-music
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ab0f18d602a28057cfb12f652e49aeeb2a21c72b0188af6b4566b84b23a050. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GBAYC0301825.
  date published: 2026-07-30T21:35:24Z
audio: Beethoven: Fidelio, Op. 72, Act 2: "Es schlägt der Rache Stunde!" (Leonore, Florestan, Pizarro, Rocco)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.576
  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: 0.497
  additional property: Energy
    type: PropertyValue
    value: 0.511
  additional property: Speechiness
    type: PropertyValue
    value: 0.065
  additional property: Acousticness
    type: PropertyValue
    value: 0.926
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.007
  additional property: Liveness
    type: PropertyValue
    value: 0.184
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.751
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.821
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBAYC0301825
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: 960317
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T21:35:24+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0301825
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960317
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960317
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T21:35:24+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