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genre: classical
genre: opera
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subject of: OpenTimestamps Proof of Existence
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track: Mass No. 2 in G Major, D. 167: I. Kyrie
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  by artist: Edith Lienbacher
  by artist: Alexander Kaimbacher
  by artist: Anton Scharinger
  by artist: Erhard Nowak
  by artist: Vienna Chamber Choir
  by artist: Orpheus Orchester Wien
  by artist: Johannes Prinz
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    date published: 1996-12-01
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-02T03:55:08Z
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track: Mass No. 2 in G Major, D. 167: II. Gloria
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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track: Mass No. 2 in G Major, D. 167: III. Credo
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-02T03:55:08Z
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track: Mass No. 2 in G Major, D. 167: VI. Agnus Dei
track: Mass No. 2 in G Major, D. 167: V. Benedictus
track: Fidelio, Op. 72: Overture
track: Fidelio, Op. 72, Act I: Duet. Jetzt, Schatzchen, jetzt sind wir allein (Jaquino, Marzelline)
track: Fidelio, Op. 72, Act I: Dialogue: Armer Jaquino (Marzelline)
track: Fidelio, Op. 72, Act I: Aria. O war' ich schon mit dir vereint (Marzelline)
track: Fidelio, Op. 72, Act I: Dialogue: Marzelline? Marzelline? (Rocco, Marzelline, Jaquino, Leonore)
track: Fidelio, Op. 72, Act I: Quartet: Mir ist so wunderbar (Marzelline, Leonore, Rocco, Jaquino)
track: Fidelio, Op. 72, Act I: Dialogue: Hore Fidelio! (Rocco, Marzelline)
track: Fidelio, Op. 72, Act I: Aria. Hat man nicht auch Gold beineben (Rocco)
track: Fidelio, Op. 72, Act I: Dialogue: Ihr habt recht, Vater Rocco (Leonore, Rocco, Marzelline)
track: Fidelio, Op. 72, Act I: Terzetto. Gut Sohnchen, gut (Rocco, Leonore, Marzelline)
track: Fidelio, Op. 72, Act I: March
track: Fidelio, Op. 72, Act I: Dialogue: Drei Schildwachen auf den Wall (Pizarro, Rocco)
track: Fidelio, Op. 72, Act I: Aria and Chorus. Ha! Welch ein Augenblick! (Pizarro, the Watch)
track: Fidelio, Op. 72, Act I: Dialogue: Hauptmann! Besteigen Sie mit einem Trompeter (Pizarro, Rocco)
track: Fidelio, Op. 72, Act I: Duet. Jetzt, Alter, jetzt hat es Eile! (Pizarro, Rocco)

Mass No. 2 in G Major, D. 167: VI. Agnus Dei
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by artist: Franz Schubert
by artist: Edith Lienbacher
by artist: Alexander Kaimbacher
by artist: Anton Scharinger
by artist: Erhard Nowak
by artist: Vienna Chamber Choir
by artist: Orpheus Orchester Wien
by artist: Johannes Prinz
in album: Franz Schubert: Messe in G. Musica sacra
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  date published: 1996-12-01
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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Mass No. 2 in G Major, D. 167: V. Benedictus
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
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Fidelio, Op. 72: Overture
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by artist: Ludwig van Beethoven
by artist: Wolfgang Glashof
by artist: Hungarian Radio Chorus
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
by artist: Alan Titus
by artist: Gösta Winbergh
by artist: Inga Nielsen
by artist: Kurt Moll
by artist: Edith Lienbacher
by artist: Herwig Pecoraro
by artist: Péter Pálinkás
by artist: József Moldvay
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  value: https://artists.proofprofile.net/proofs/track/3IjkKx4Jcun93Iw5dpKFUC.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3IjkKx4Jcun93Iw5dpKFUC
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81ba7a0c9a2acaca1749c68c92a73a698e9c0d7897ae0699ae0b945538d569b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3IjkKx4Jcun93Iw5dpKFUC.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3IjkKx4Jcun93Iw5dpKFUC.
  date published: 2026-06-13T15:41:10Z
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Fidelio, Op. 72, Act I: Duet. Jetzt, Schatzchen, jetzt sind wir allein (Jaquino, Marzelline)
type: MusicRecording
duration: PT4M46S
duration ms: 286200
explicit: false
by artist: Ludwig van Beethoven
by artist: Wolfgang Glashof
by artist: Hungarian Radio Chorus
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
by artist: Alan Titus
by artist: Gösta Winbergh
by artist: Inga Nielsen
by artist: Kurt Moll
by artist: Edith Lienbacher
by artist: Herwig Pecoraro
by artist: Péter Pálinkás
by artist: József Moldvay
in album: Beethoven: Fidelio
  type: MusicAlbum
  date published: 1999-09-13
isrc code: HKI199925402
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x68fb3d92e4f39d05fd1cceaf477c0b7fb057222e81ae982002e653a9bd93b2ff
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2tSFyxHOGbaWZgycjacyuv.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2tSFyxHOGbaWZgycjacyuv
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSCanonicalRecord
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68fb3d92e4f39d05fd1cceaf477c0b7fb057222e81ae982002e653a9bd93b2ff. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2tSFyxHOGbaWZgycjacyuv.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2tSFyxHOGbaWZgycjacyuv.
  date published: 2026-07-02T03:55:08Z
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Fidelio, Op. 72, Act I: Dialogue: Armer Jaquino (Marzelline)
type: MusicRecording
duration: PT0M10S
duration ms: 10800
explicit: false
by artist: Ludwig van Beethoven
by artist: Wolfgang Glashof
by artist: Hungarian Radio Chorus
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
by artist: Alan Titus
by artist: Gösta Winbergh
by artist: Inga Nielsen
by artist: Kurt Moll
by artist: Edith Lienbacher
by artist: Herwig Pecoraro
by artist: Péter Pálinkás
by artist: József Moldvay
in album: Beethoven: Fidelio
  type: MusicAlbum
  date published: 1999-09-13

Fidelio, Op. 72, Act I: Aria. O war' ich schon mit dir vereint (Marzelline)
type: MusicRecording
duration: PT3M49S
duration ms: 229680
explicit: false
by artist: Ludwig van Beethoven
by artist: Wolfgang Glashof
by artist: Hungarian Radio Chorus
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
by artist: Alan Titus
by artist: Gösta Winbergh
by artist: Inga Nielsen
by artist: Kurt Moll
by artist: Edith Lienbacher
by artist: Herwig Pecoraro
by artist: Péter Pálinkás
by artist: József Moldvay
in album: Beethoven: Fidelio
  type: MusicAlbum
  date published: 1999-09-13
isrc code: HKI199925404
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-17T22:19:31+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xfa7ee0a21a2f4be442b855a5310c372ce93f496415cd8d20b6c7ea111950cb8b
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/69k7EGVHOk5o6f38QYPMCo
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7ee0a21a2f4be442b855a5310c372ce93f496415cd8d20b6c7ea111950cb8b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/69k7EGVHOk5o6f38QYPMCo.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/69k7EGVHOk5o6f38QYPMCo.
  date published: 2026-07-02T03:30:09Z
  text: {"copyright_id":"0xfa7ee0a21a2f4be442b855a5310c372ce93f496415cd8d20b6c7ea111950cb8b","isrc":"HKI199925404","name":"Fidelio, Op. 72, Act I: Aria. O war' ich schon mit dir vereint (Marzelline)","registered_at":"2026-06-17T22:19:31Z","spotify_id":"69k7EGVHOk5o6f38QYPMCo","type":"track"}

Fidelio, Op. 72, Act I: Dialogue: Marzelline? Marzelline? (Rocco, Marzelline, Jaquino, Leonore)
type: MusicRecording
duration: PT0M45S
duration ms: 45720
explicit: false
by artist: Ludwig van Beethoven
by artist: Wolfgang Glashof
by artist: Hungarian Radio Chorus
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
by artist: Alan Titus
by artist: Gösta Winbergh
by artist: Inga Nielsen
by artist: Kurt Moll
by artist: Edith Lienbacher
by artist: Herwig Pecoraro
by artist: Péter Pálinkás
by artist: József Moldvay
in album: Beethoven: Fidelio
  type: MusicAlbum
  date published: 1999-09-13
isrc code: HKI199925405

Fidelio, Op. 72, Act I: Quartet: Mir ist so wunderbar (Marzelline, Leonore, Rocco, Jaquino)
type: MusicRecording
duration: PT4M43S
duration ms: 283680
explicit: false
by artist: Ludwig van Beethoven
by artist: Wolfgang Glashof
by artist: Hungarian Radio Chorus
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
by artist: Alan Titus
by artist: Gösta Winbergh
by artist: Inga Nielsen
by artist: Kurt Moll
by artist: Edith Lienbacher
by artist: Herwig Pecoraro
by artist: Péter Pálinkás
by artist: József Moldvay
in album: Beethoven: Fidelio
  type: MusicAlbum
  date published: 1999-09-13
isrc code: HKI199925406
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9bcbf5a4f2156fa589683ad70855550b3216928068f2b56d00c4462be88c516d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/23TL9bvBWoPvmiFyG0U1cb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/23TL9bvBWoPvmiFyG0U1cb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9bcbf5a4f2156fa589683ad70855550b3216928068f2b56d00c4462be88c516d","isrc":"HKI199925406","name":"Fidelio, Op. 72, Act I: Quartet: Mir ist so wunderbar (Marzelline, Leonore, Rocco, Jaquino)","registered_at":"2026-06-19T09:01:39Z","spotify_id":"23TL9bvBWoPvmiFyG0U1cb","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bcbf5a4f2156fa589683ad70855550b3216928068f2b56d00c4462be88c516d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/23TL9bvBWoPvmiFyG0U1cb.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/23TL9bvBWoPvmiFyG0U1cb.
  date published: 2026-07-02T03:30:09Z
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Fidelio, Op. 72, Act I: Dialogue: Hore Fidelio! (Rocco, Marzelline)
type: MusicRecording
duration: PT0M30S
duration ms: 30240
explicit: false
by artist: Ludwig van Beethoven
by artist: Wolfgang Glashof
by artist: Hungarian Radio Chorus
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
by artist: Alan Titus
by artist: Gösta Winbergh
by artist: Inga Nielsen
by artist: Kurt Moll
by artist: Edith Lienbacher
by artist: Herwig Pecoraro
by artist: Péter Pálinkás
by artist: József Moldvay
in album: Beethoven: Fidelio
  type: MusicAlbum
  date published: 1999-09-13
isrc code: HKI199925407

Fidelio, Op. 72, Act I: Aria. Hat man nicht auch Gold beineben (Rocco)
type: MusicRecording
duration: PT2M46S
duration ms: 166680
explicit: false
by artist: Ludwig van Beethoven
by artist: Wolfgang Glashof
by artist: Hungarian Radio Chorus
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
by artist: Alan Titus
by artist: Gösta Winbergh
by artist: Inga Nielsen
by artist: Kurt Moll
by artist: Edith Lienbacher
by artist: Herwig Pecoraro
by artist: Péter Pálinkás
by artist: József Moldvay
in album: Beethoven: Fidelio
  type: MusicAlbum
  date published: 1999-09-13
isrc code: HKI199925408
additional property: CopyrightID
additional property: CopyrightStatus
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  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956351
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0gc0YUI8kOUAPyCVHlROYg.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0gc0YUI8kOUAPyCVHlROYg
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdf07cf7e6f0bc9f546e72b6d0b4d350a1eeb75ac1d0a585f9cd055fba8da243b","isrc":"HKI199925408","name":"Fidelio, Op. 72, Act I: Aria. Hat man nicht auch Gold beineben (Rocco)","registered_at":"2026-06-26T19:21:31Z","spotify_id":"0gc0YUI8kOUAPyCVHlROYg","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf07cf7e6f0bc9f546e72b6d0b4d350a1eeb75ac1d0a585f9cd055fba8da243b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0gc0YUI8kOUAPyCVHlROYg.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0gc0YUI8kOUAPyCVHlROYg.
  date published: 2026-07-02T11:38:34Z
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Fidelio, Op. 72, Act I: Dialogue: Ihr habt recht, Vater Rocco (Leonore, Rocco, Marzelline)
type: MusicRecording
duration: PT1M29S
duration ms: 89280
explicit: false
by artist: Ludwig van Beethoven
by artist: Wolfgang Glashof
by artist: Hungarian Radio Chorus
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
by artist: Alan Titus
by artist: Gösta Winbergh
by artist: Inga Nielsen
by artist: Kurt Moll
by artist: Edith Lienbacher
by artist: Herwig Pecoraro
by artist: Péter Pálinkás
by artist: József Moldvay
in album: Beethoven: Fidelio
  type: MusicAlbum
  date published: 1999-09-13
isrc code: HKI199925409

Fidelio, Op. 72, Act I: Terzetto. Gut Sohnchen, gut (Rocco, Leonore, Marzelline)
type: MusicRecording
duration: PT6M30S
duration ms: 390960
explicit: false
by artist: Ludwig van Beethoven
by artist: Wolfgang Glashof
by artist: Hungarian Radio Chorus
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
by artist: Alan Titus
by artist: Gösta Winbergh
by artist: Inga Nielsen
by artist: Kurt Moll
by artist: Edith Lienbacher
by artist: Herwig Pecoraro
by artist: Péter Pálinkás
by artist: József Moldvay
in album: Beethoven: Fidelio
  type: MusicAlbum
  date published: 1999-09-13
isrc code: HKI199925410
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956351
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/63saYKwk688RqpD6QVjwnA.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/63saYKwk688RqpD6QVjwnA
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:38:34Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f14bb8c9a2e6ff18d2d8ca72249e25b23ee887c36e54a9137e0c5919da89487. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/63saYKwk688RqpD6QVjwnA.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/63saYKwk688RqpD6QVjwnA.
  date published: 2026-07-02T11:38:34Z
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Fidelio, Op. 72, Act I: March
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duration: PT2M14S
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Fidelio, Op. 72, Act I: Dialogue: Drei Schildwachen auf den Wall (Pizarro, Rocco)
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Fidelio, Op. 72, Act I: Aria and Chorus. Ha! Welch ein Augenblick! (Pizarro, the Watch)
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Fidelio, Op. 72, Act I: Dialogue: Hauptmann! Besteigen Sie mit einem Trompeter (Pizarro, Rocco)
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Fidelio, Op. 72, Act I: Duet. Jetzt, Alter, jetzt hat es Eile! (Pizarro, Rocco)
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