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description: Josef Protschka (born 5 February 1944) is a German operatic tenor who also sang lieder and oratorio and made many recordings. He performed as the vocal soloist in Stockhausen's electronic composition
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:55:08Z
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Goethe And Music, Vol. 2 - Wolf, H. / Schubert, F. / Mozart, W.A. / Beethoven, L. Van / Schumann, R. / Brahms. J. / Liszt, F. / Mendelssohn, Felix
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:55:08Z
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Famous Austrian Composers
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date published: 2004-01-01
track: Feuerfest!, Op. 269
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-30T08:04:30Z
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track: Piano Sonata No. 16 in C Major, K. 545 "Sonata facile": I. Allegro
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T06:58:00Z
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The 99 Most Essential Choral Masterpieces
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-29T21:51:49Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-06-13T15:41:10Z
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track: Mass in B Minor, BWV 232: IV. Gloria: Gloria in excelsis Deo
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track: Mass in B Minor, BWV 232: V. Gloria: Et in terra pax
track: Mass in B Minor, BWV 232: IX. Gloria: Qui tollis peccata mundi
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track: Mass in B Minor, BWV 232: XXI. Credo: Et exspecto
track: Mass in B Minor, BWV 232: XXII. Sanctus
track: Mass in B Minor, BWV 232: XXV. Osanna in excelsis
track: Mass in B Minor, BWV 232: XXVII. Dona nobis pacem

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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAER0701040

OTSTimestamp
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value: 2026-07-02T03:30:09Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f431bf6b97e71914a2546a75f1a1bdd99a2541158e6ee2202b197d0280cf727. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/SEAER0701040.
date published: 2026-07-02T03:30:09Z

Mass in B Minor, BWV 232: IV. Gloria: Gloria in excelsis Deo
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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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Mass in B Minor, BWV 232: V. Gloria: Et in terra pax
type: MusicRecording
duration: PT4M56S
duration ms: 296200
explicit: false
by artist: Johann Sebastian Bach
by artist: Bach Collegium Japan Chorus
by artist: Bach Collegium Japan
by artist: Masaaki Suzuki
in album: The 99 Most Essential Choral Masterpieces
  type: MusicAlbum
  date published: 2012-09-12
popularity: 15
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: SEAER0701050
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
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  value: 2026-07-02T03:30:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeedbd508164e2370edf84fd41d445a2c3f2b5e0214fdd42719093c796a3a00c9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/SEAER0701050.
  date published: 2026-07-02T03:30:09Z
audio: Mass in B Minor, BWV 232: V. Gloria: Et in terra pax
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Mass in B Minor, BWV 232: IX. Gloria: Qui tollis peccata mundi
type: MusicRecording
duration: PT3M5S
duration ms: 185586
explicit: false
by artist: Johann Sebastian Bach
by artist: Bach Collegium Japan Chorus
by artist: Bach Collegium Japan
by artist: Masaaki Suzuki
in album: The 99 Most Essential Choral Masterpieces
  type: MusicAlbum
  date published: 2012-09-12
popularity: 13
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: SEAER0701090
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-02T03:30:09Z
audio: Mass in B Minor, BWV 232: IX. Gloria: Qui tollis peccata mundi
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Mass in B Minor, BWV 232: XIII. Credo: Credo in unum Deum
type: MusicRecording
duration: PT1M47S
duration ms: 107720
explicit: false
by artist: Johann Sebastian Bach
by artist: Bach Collegium Japan Chorus
by artist: Bach Collegium Japan
by artist: Masaaki Suzuki
in album: The 99 Most Essential Choral Masterpieces
  type: MusicAlbum
  date published: 2012-09-12
popularity: 12
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: SEAER0702010
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Mass in B Minor, BWV 232: XIII. Credo: Credo in unum Deum
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Mass in B Minor, BWV 232: XVI. Credo: Et incarnatus est
type: MusicRecording
duration: PT3M37S
duration ms: 217440
explicit: false
by artist: Johann Sebastian Bach
by artist: Bach Collegium Japan Chorus
by artist: Bach Collegium Japan
by artist: Masaaki Suzuki
in album: The 99 Most Essential Choral Masterpieces
  type: MusicAlbum
  date published: 2012-09-12
popularity: 12
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: SEAER0702040
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac13330da2445a880970c24d0e4d5ebe3bf5737eb450fd89e4f0a8f7136a0e7f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEAER0702040.
  date published: 2026-07-02T03:55:08Z
audio: Mass in B Minor, BWV 232: XVI. Credo: Et incarnatus est
  type: AudioObject
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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: 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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Mass in B Minor, BWV 232: XVII. Credo: Crucifixus
type: MusicRecording
duration: PT3M17S
duration ms: 197253
explicit: false
by artist: Johann Sebastian Bach
by artist: Bach Collegium Japan Chorus
by artist: Bach Collegium Japan
by artist: Masaaki Suzuki
in album: The 99 Most Essential Choral Masterpieces
  type: MusicAlbum
  date published: 2012-09-12
popularity: 12
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: SEAER0702050
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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  value: 2026-06-21T05:18:27+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAER0702050
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e6c3960e33472bbd9458435eafac782154049947ff532ba43f0a4a6c62282e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/SEAER0702050.
  date published: 2026-07-02T03:30:09Z
audio: Mass in B Minor, BWV 232: XVII. Credo: Crucifixus
  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: Loudness (dB)
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Mass in B Minor, BWV 232: XVIII. Credo: Et resurrexit
type: MusicRecording
duration: PT3M54S
duration ms: 234373
explicit: false
by artist: Johann Sebastian Bach
by artist: Bach Collegium Japan Chorus
by artist: Bach Collegium Japan
by artist: Masaaki Suzuki
in album: The 99 Most Essential Choral Masterpieces
  type: MusicAlbum
  date published: 2012-09-12
popularity: 17
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: SEAER0702060
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Mass in B Minor, BWV 232: XVIII. Credo: Et resurrexit
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Mass in B Minor, BWV 232: XXI. Credo: Et exspecto
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duration ms: 126253
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by artist: Bach Collegium Japan Chorus
by artist: Bach Collegium Japan
by artist: Masaaki Suzuki
in album: The 99 Most Essential Choral Masterpieces
  type: MusicAlbum
  date published: 2012-09-12
popularity: 10
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
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additional property: OTSVerificationAPI
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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: 2026-07-02T03:55:08Z
audio: Mass in B Minor, BWV 232: XXI. Credo: Et exspecto
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Mass in B Minor, BWV 232: XXII. Sanctus
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duration: PT5M52S
duration ms: 352600
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by artist: Bach Collegium Japan Chorus
by artist: Bach Collegium Japan
by artist: Masaaki Suzuki
in album: The 99 Most Essential Choral Masterpieces
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  date published: 2012-09-12
popularity: 13
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
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additional property: OTSVerificationAPI
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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: 2026-07-02T03:55:08Z
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Mass in B Minor, BWV 232: XXV. Osanna in excelsis
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duration: PT2M40S
duration ms: 160226
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by artist: Robin Blaze
by artist: Bach Collegium Japan Chorus
by artist: Bach Collegium Japan
by artist: Masaaki Suzuki
in album: The 99 Most Essential Choral Masterpieces
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  date published: 2012-09-12
popularity: 10
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
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additional property: OTSVerificationAPI
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Mass in B Minor, BWV 232: XXV. Osanna in excelsis
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Mass in B Minor, BWV 232: XXVII. Dona nobis pacem
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by artist: Bach Collegium Japan
by artist: Masaaki Suzuki
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popularity: 8
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
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additional property: OTSVerificationAPI
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Mass in B Minor, BWV 232: XXVII. Dona nobis pacem
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Busoni, F.: Turandot [Opera]
type: MusicAlbum
date published: 1993-01-01

Beethoven: Missa solemnis, Op. 123
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date published: 2018-01-30

Dvorák: Svatební košile (The Spectre's Bride), Op. 69, B. 135
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date published: 2016-01-01

MOZART, W.A.: Opera Arias
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date published: 2010-08-01

Mozart, W.A.: Lieder
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Schumann, R.: Liederkreis / Spanisches Liederspiel / 4 Duette / Spanische Liebeslieder
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Schumann, R.: Dichterliebe / Liederkreis
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Schubert, F.: Schöne Müllerin (Die)
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date published: 1986-01-01

Schubert, F.: Schone Mullerin (Die)
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Best - Beethoven
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  additional property: OTSVerificationAPI
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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
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-06-13T12:47:07Z
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track: Symphony No. 9 in D Minor, Op. 125, "Choral": An die Freude
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:55:08Z
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track: Sonata No. 8 in C Minor for Piano, Op. 13, "Sonata Pathétique": II. Adagio cantabile
track: Symphony No. 5 in C Minor, Op. 67, "Fate": Allegro con brio
track: Concerto No. 5 in E-Flat Major for Piano and Orchestra, Op. 73, "Emperor": II. Adagio un poco mosso (attacca)
track: Egmont, Op. 84: Overture in F Minor
track: Sonata No. 5 in F Major for Violin and Piano, Op. 24, "Spring": II. Adagio molto espressivo
track: Sonata No. 5 in F Major for Violin and Piano, Op. 24, "Spring": I. Allegro
track: Symphony No. 7 in A Major, Op. 92: II. Allegretto
track: Romance No. 2 in F Major for Violin and Orchestra, Op. 50
track: Symphony No. 2 in D Major, Op. 36: II. Larghetto
track: Symphony No. 6 in F Major, Op. 68, "Pastoral": I. Erwachen heiterer Empfindungen bei der Ankunft auf dem Lande (Awakening of happy feelings on arrival in the country): Allegro ma non troppo
track: Sonata No. 9 in A Major for Violin and Piano, Op. 47, "Kreutzer Sonata": I. Adagio sostenuto - Presto - Adagio
track: Concerto in D Major for Violin and Orchestra, Op. 61: II. Larghetto
track: Sonata No. 23 in F Minor for Piano, Op. 57, "Appassionata": I. Allegro assai
track: Symphony No. 3 in E-Flat Major, Op. 55, "Eroica": II. Marcia funébre: Adagio assai
track: Sonata No. 17 in D Minor for Piano, Op. 31/2 (The Tempest): III. Allegretto
track: Sonata No. 3 in A Major for Cello and Piano, Op. 69: I. Allegro ma non tanto
track: Symphony No. 4 in B-Flat Major, Op. 60: III. Menuetto: Allegro vivace - Trio: Un poco meno allegro
track: Septet in E-Flat Major, Op. 20: II. Adagio cantabile
track: Symphony No. 6 in F Major, Op. 68, "Pastoral": III. Lustiges Zusammensein der Landleute (Joyous gathering of country folk): Allegro (attacca)
track: Symphony No. 1 in C Major, Op. 21: II. Andante cantabile con moto
track: Sonata No. 26 in E-Flat Major for Piano, Op. 81a, "Les Adieux": III. The Return: Vivacissimamente
track: Concerto in D Major for Violin and Orchestra, Op. 61: III. Rondo: Allegro
track: Missa Solemnis in D Major, Op. 123: I. Kyrie
track: Missa Solemnis in D Major, Op. 123: II. Gloria
track: Missa Solemnis in D Major, Op. 123: III. Credo
track: Missa Solemnis in D Major, Op. 123: IV. Sanctus
track: Missa Solemnis in D Major, Op. 123: V. Agnus Dei

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Sonata No. 8 in C Minor for Piano, Op. 13, "Sonata Pathétique": II. Adagio cantabile
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Symphony No. 5 in C Minor, Op. 67, "Fate": Allegro con brio
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Concerto No. 5 in E-Flat Major for Piano and Orchestra, Op. 73, "Emperor": II. Adagio un poco mosso (attacca)
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Egmont, Op. 84: Overture in F Minor
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Sonata No. 5 in F Major for Violin and Piano, Op. 24, "Spring": II. Adagio molto espressivo
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Sonata No. 5 in F Major for Violin and Piano, Op. 24, "Spring": I. Allegro
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  date published: 2026-07-29T13:09:35Z
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Symphony No. 7 in A Major, Op. 92: II. Allegretto
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Romance No. 2 in F Major for Violin and Orchestra, Op. 50
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Symphony No. 2 in D Major, Op. 36: II. Larghetto
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Symphony No. 6 in F Major, Op. 68, "Pastoral": I. Erwachen heiterer Empfindungen bei der Ankunft auf dem Lande (Awakening of happy feelings on arrival in the country): Allegro ma non troppo
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Sonata No. 9 in A Major for Violin and Piano, Op. 47, "Kreutzer Sonata": I. Adagio sostenuto - Presto - Adagio
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  date published: 2026-07-30T07:48:45Z
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Concerto in D Major for Violin and Orchestra, Op. 61: II. Larghetto
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Sonata No. 23 in F Minor for Piano, Op. 57, "Appassionata": I. Allegro assai
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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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Symphony No. 3 in E-Flat Major, Op. 55, "Eroica": II. Marcia funébre: Adagio assai
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Sonata No. 17 in D Minor for Piano, Op. 31/2 (The Tempest): III. Allegretto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Sonata No. 17 in D Minor for Piano, Op. 31/2 (The Tempest): III. Allegretto
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Sonata No. 3 in A Major for Cello and Piano, Op. 69: I. Allegro ma non tanto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Sonata No. 3 in A Major for Cello and Piano, Op. 69: I. Allegro ma non tanto
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Symphony No. 4 in B-Flat Major, Op. 60: III. Menuetto: Allegro vivace - Trio: Un poco meno allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T04:14:58Z
audio: Symphony No. 4 in B-Flat Major, Op. 60: III. Menuetto: Allegro vivace - Trio: Un poco meno allegro
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Septet in E-Flat Major, Op. 20: II. Adagio cantabile
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T22:27:30Z
audio: Septet in E-Flat Major, Op. 20: II. Adagio cantabile
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Symphony No. 6 in F Major, Op. 68, "Pastoral": III. Lustiges Zusammensein der Landleute (Joyous gathering of country folk): Allegro (attacca)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T02:19:15Z
audio: Symphony No. 6 in F Major, Op. 68, "Pastoral": III. Lustiges Zusammensein der Landleute (Joyous gathering of country folk): Allegro (attacca)
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Symphony No. 1 in C Major, Op. 21: II. Andante cantabile con moto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T20:09:33Z
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Sonata No. 26 in E-Flat Major for Piano, Op. 81a, "Les Adieux": III. The Return: Vivacissimamente
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T20:35:49Z
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Concerto in D Major for Violin and Orchestra, Op. 61: III. Rondo: Allegro
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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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Missa Solemnis in D Major, Op. 123: I. Kyrie
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T02:19:15Z
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Missa Solemnis in D Major, Op. 123: II. Gloria
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  date published: 2026-07-31T18:48:12Z
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Missa Solemnis in D Major, Op. 123: III. Credo
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Missa Solemnis in D Major, Op. 123: IV. Sanctus
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960494
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0505704
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T01:44:32Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90cb380a14be4b667a12dece6226e75855068548925e3e5f42d603f32c693b91. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/SEWDL0505704.
  date published: 2026-08-01T01:44:32Z
audio: Missa Solemnis in D Major, Op. 123: IV. Sanctus
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Missa Solemnis in D Major, Op. 123: V. Agnus Dei
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duration: PT14M15S
duration ms: 855960
explicit: false
by artist: Marjana Lipovsek
by artist: Wolfgang Hock
by artist: Phyllis Bryn-Julson
by artist: Kurt Rydl
by artist: Josef Protschka
by artist: SWR Symphony Orchestra
in album: Best - Beethoven
  type: MusicAlbum
  date published: 2012-04-01
popularity: 2
genre: classical-contralto
isrc code: SEWDL0505705
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/960468
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0505705
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T21:25:57Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08efef8259a40774f90c4d36e187b42eac8d39c31f745661d1781e28624dd4ae. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/SEWDL0505705.
  date published: 2026-07-31T21:25:57Z
audio: Missa Solemnis in D Major, Op. 123: V. Agnus Dei
  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: Loudness (dB)
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Mozart : Requiem & Mass No.16, 'Coronation' (Apex)
type: MusicAlbum
date published: 1982
track: Mozart: Requiem in D Minor, K. 626: IV. Tuba mirum
  type: MusicRecording
  duration: PT3M43S
  duration ms: 223466
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Rachel Yakar, Ortrun Wenkel, Kurt Equiluz, Robert Holl, Nikolaus Harnoncourt & Concentus musicus Wien
  by artist: Kurt Equiluz
  by artist: Ortrun Wenkel
  by artist: Rachel Yakar
  by artist: Robert Holl
  by artist: Nikolaus Harnoncourt
  by artist: Concentus Musicus Wien
  in album: Mozart : Requiem & Mass No.16, 'Coronation' (Apex)
    type: MusicAlbum
    date published: 1982
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
  isrc code: DEA808200103
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-19T23:57:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x637abff557ca8a079aec13ef8bf97786ed0c88d62f7cf21b5dafd5c83d1a23b9
  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/DEA808200103
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637abff557ca8a079aec13ef8bf97786ed0c88d62f7cf21b5dafd5c83d1a23b9. 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/DEA808200103.
    date published: 2026-07-08T03:20:19Z
  audio: Mozart: Requiem in D Minor, K. 626: IV. Tuba mirum
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 110.077
    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
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.057
    additional property: Loudness (dB)
      type: PropertyValue
      value: -27.893
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
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track: Mozart: Requiem in D Minor, K. 626: V. Rex tremendae
  type: MusicRecording
  duration: PT1M57S
  duration ms: 117493
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Rachel Yakar, Ortrun Wenkel, Kurt Equiluz, Robert Holl, Nikolaus Harnoncourt & Concentus musicus Wien
  by artist: Vienna State Opera Chorus
  by artist: Nikolaus Harnoncourt
  by artist: Concentus Musicus Wien
  in album: Mozart : Requiem & Mass No.16, 'Coronation' (Apex)
    type: MusicAlbum
    date published: 1982
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
  isrc code: DEA808200104
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-18T14:10:51+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xbdc935c237e92cc090e9e9273131aa64e199fef5063f743ea9524a89b8d110c5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA808200104
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc935c237e92cc090e9e9273131aa64e199fef5063f743ea9524a89b8d110c5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEA808200104.
    date published: 2026-07-02T03:55:08Z
  audio: Mozart: Requiem in D Minor, K. 626: V. Rex tremendae
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    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Acousticness
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track: Mozart: Requiem in D Minor, K. 626: VII. Confutatis
  type: MusicRecording
  duration: PT2M39S
  duration ms: 159493
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Nikolaus Harnoncourt
  by artist: Vienna State Opera Chorus
  by artist: Concentus Musicus Wien
  in album: Mozart : Requiem & Mass No.16, 'Coronation' (Apex)
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
  isrc code: DEA808200106
  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: Requiem in D Minor, K. 626: VII. Confutatis
track: Mozart: Requiem in D Minor, K. 626: VIII. Lacrimosa
track: Mozart: Requiem in D Minor, K. 626: IX. Domine Jesu Christe
track: Mozart: Requiem in D Minor, K. 626: X. Hostias
track: Mozart: Requiem in D Minor, K. 626: XI. Sanctus
track: Mozart: Requiem in D Minor, K. 626: XIV. Communio
track: Mozart: Mass in C Major, K. 317, "Coronation": Kyrie
track: Mozart: Mass in C Major, K. 317 "Coronation": II. Gloria
track: Mozart: Mass in C Major, K. 317, "Coronation": Credo
track: Mozart: Mass in C Major, K. 317, "Coronation": Sanctus
track: Mozart: Mass in C Major, K. 317, "Coronation": Benedictus
track: Mozart: Mass in C Major, K. 317, "Coronation": Agnus Dei

Nikolaus Harnoncourt
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Vienna State Opera Chorus
type: MusicGroup

Concentus Musicus Wien
type: MusicGroup

Mozart : Requiem & Mass No.16, 'Coronation' (Apex)
type: MusicAlbum
date published: 1982

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-10T02:39:30+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xf584b7cf768a4a587fca9de25f5bd20fd333f454ae064f525f033d2ab511341a

OTSHash
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OTSBitcoinBlock
type: PropertyValue
value: 957118

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957118

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA808200106

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf584b7cf768a4a587fca9de25f5bd20fd333f454ae064f525f033d2ab511341a. 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/DEA808200106.
date published: 2026-07-08T03:20:19Z

Mozart: Requiem in D Minor, K. 626: VII. Confutatis
type: AudioObject
additional property: Tempo (BPM)
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additional property: Musical Key
  type: PropertyValue
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additional property: Mode (Major/Minor)
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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
  type: PropertyValue
  value: 0.991
additional property: Instrumentalness
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additional property: Liveness
  type: PropertyValue
  value: 0.179
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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Mozart: Requiem in D Minor, K. 626: VIII. Lacrimosa
type: MusicRecording
duration: PT3M1S
duration ms: 181400
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Nikolaus Harnoncourt
by artist: Vienna State Opera Chorus
by artist: Concentus Musicus Wien
in album: Mozart : Requiem & Mass No.16, 'Coronation' (Apex)
  type: MusicAlbum
  date published: 1982
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: DEA808200101
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T15:53:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe2e8a8638d59d8d2a5b78a3eeb5abdd6e33cf31cc66e251937ba633a66928d89
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957073
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957073
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA808200101
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:39:05Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e8a8638d59d8d2a5b78a3eeb5abdd6e33cf31cc66e251937ba633a66928d89. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEA808200101.
  date published: 2026-07-07T18:39:05Z
audio: Mozart: Requiem in D Minor, K. 626: VIII. Lacrimosa
  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
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Mode Name
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Mozart: Requiem in D Minor, K. 626: IX. Domine Jesu Christe
type: MusicRecording
duration: PT3M47S
duration ms: 227466
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Rachel Yakar, Ortrun Wenkel, Kurt Equiluz, Robert Holl, Nikolaus Harnoncourt & Concentus musicus Wien
by artist: Vienna State Opera Chorus
by artist: Kurt Equiluz
by artist: Ortrun Wenkel
by artist: Rachel Yakar
by artist: Robert Holl
by artist: Nikolaus Harnoncourt
by artist: Concentus Musicus Wien
in album: Mozart : Requiem & Mass No.16, 'Coronation' (Apex)
  type: MusicAlbum
  date published: 1982
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: DEA808204601
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T04:01:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xedf3cdf56984eec6b28b565f0be3881ff06252a7baf104439cb4a03850fa625e
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/DEA808204601
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf3cdf56984eec6b28b565f0be3881ff06252a7baf104439cb4a03850fa625e. 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/DEA808204601.
  date published: 2026-07-08T03:20:19Z
audio: Mozart: Requiem in D Minor, K. 626: IX. Domine Jesu Christe
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.658
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.222
  additional property: Energy
    type: PropertyValue
    value: 0.155
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.153
  additional property: Liveness
    type: PropertyValue
    value: 0.118
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.162
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.896
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mozart: Requiem in D Minor, K. 626: X. Hostias
type: MusicRecording
duration: PT3M6S
duration ms: 186800
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Rachel Yakar, Ortrun Wenkel, Kurt Equiluz, Robert Holl, Nikolaus Harnoncourt & Concentus musicus Wien
by artist: Nikolaus Harnoncourt
by artist: Concentus Musicus Wien
in album: Mozart : Requiem & Mass No.16, 'Coronation' (Apex)
  type: MusicAlbum
  date published: 1982
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: DEA808204602
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T03:57:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0e1a02d8bc92e97daf4d3da06b0f7918cfaded99026566f9d3d895c9e56a2305
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/DEA808204602
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1a02d8bc92e97daf4d3da06b0f7918cfaded99026566f9d3d895c9e56a2305. 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/DEA808204602.
  date published: 2026-07-08T03:20:19Z
audio: Mozart: Requiem in D Minor, K. 626: X. Hostias
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.139
  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: 0.268
  additional property: Energy
    type: PropertyValue
    value: 0.116
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.713
  additional property: Liveness
    type: PropertyValue
    value: 0.093
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.07
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.402
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mozart: Requiem in D Minor, K. 626: XI. Sanctus
type: MusicRecording
duration: PT1M29S
duration ms: 89000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Rachel Yakar, Ortrun Wenkel, Kurt Equiluz, Robert Holl, Nikolaus Harnoncourt & Concentus musicus Wien
by artist: Vienna State Opera Chorus
by artist: Nikolaus Harnoncourt
by artist: Concentus Musicus Wien
in album: Mozart : Requiem & Mass No.16, 'Coronation' (Apex)
  type: MusicAlbum
  date published: 1982
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: DEA808204700
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T21:16:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x69c3b04dd8687a3f9349002ae4fa1db4cb0d7213e95ee2370653d0ea290cfda6
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/DEA808204700
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c3b04dd8687a3f9349002ae4fa1db4cb0d7213e95ee2370653d0ea290cfda6. 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/DEA808204700.
  date published: 2026-07-08T03:20:19Z
audio: Mozart: Requiem in D Minor, K. 626: XI. Sanctus
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 88.012
  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: 0.26
  additional property: Energy
    type: PropertyValue
    value: 0.149
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.987
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.226
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.221
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.661
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mozart: Requiem in D Minor, K. 626: XIV. Communio
type: MusicRecording
duration: PT5M20S
duration ms: 320400
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Rachel Yakar, Ortrun Wenkel, Kurt Equiluz, Robert Holl, Nikolaus Harnoncourt & Concentus musicus Wien
by artist: Vienna State Opera Chorus
by artist: Rachel Yakar
by artist: Nikolaus Harnoncourt
by artist: Concentus Musicus Wien
in album: Mozart : Requiem & Mass No.16, 'Coronation' (Apex)
  type: MusicAlbum
  date published: 1982
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: DEA808205000
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T21:13:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x69153b5aa8348fd40f85b2102e2b966a2f34f3c362af90c57129ffd0f5d4fa63
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/DEA808205000
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69153b5aa8348fd40f85b2102e2b966a2f34f3c362af90c57129ffd0f5d4fa63. 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/DEA808205000.
  date published: 2026-07-08T03:20:19Z
audio: Mozart: Requiem in D Minor, K. 626: XIV. Communio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.825
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.156
  additional property: Energy
    type: PropertyValue
    value: 0.203
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.572
  additional property: Liveness
    type: PropertyValue
    value: 0.104
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.146
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.995
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mozart: Mass in C Major, K. 317, "Coronation": Kyrie
type: MusicRecording
duration: PT3M6S
duration ms: 186266
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Nikolaus Harnoncourt
by artist: Concentus Musicus Wien
in album: Mozart : Requiem & Mass No.16, 'Coronation' (Apex)
  type: MusicAlbum
  date published: 1982
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: DEA808700301
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T02:10:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x95b59151c026224efc37e6bf8de712f786c466386dde54c4dcf3b14c5254a9d3
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/DEA808700301
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b59151c026224efc37e6bf8de712f786c466386dde54c4dcf3b14c5254a9d3. 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/DEA808700301.
  date published: 2026-07-08T03:20:19Z
audio: Mozart: Mass in C Major, K. 317, "Coronation": Kyrie
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.725
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.233
  additional property: Energy
    type: PropertyValue
    value: 0.052
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.98
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.048
  additional property: Liveness
    type: PropertyValue
    value: 0.383
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.68
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mozart: Mass in C Major, K. 317 "Coronation": II. Gloria
type: MusicRecording
duration: PT4M39S
duration ms: 279893
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Nikolaus Harnoncourt
by artist: Elisabeth Von Magnus
by artist: Joan Rodgers
by artist: Josef Protschka
by artist: László Polgár
by artist: Concentus Musicus Wien
in album: Mozart : Requiem & Mass No.16, 'Coronation' (Apex)
  type: MusicAlbum
  date published: 1982
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: DEA808700302
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T07:03:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x75002f9848c1ee70121014a6e7119b7f5e92f2e6f1cb9e0fc66b9dc7661b1b58
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960220
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960220
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA808700302
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T07:28:30Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75002f9848c1ee70121014a6e7119b7f5e92f2e6f1cb9e0fc66b9dc7661b1b58. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA808700302.
  date published: 2026-07-30T07:28:30Z
audio: Mozart: Mass in C Major, K. 317 "Coronation": II. Gloria
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 141.316
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.297
  additional property: Energy
    type: PropertyValue
    value: 0.106
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.263
  additional property: Liveness
    type: PropertyValue
    value: 0.281
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.267
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.202
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mozart: Mass in C Major, K. 317, "Coronation": Credo
type: MusicRecording
duration: PT6M18S
duration ms: 378333
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Nikolaus Harnoncourt
by artist: Concentus Musicus Wien
in album: Mozart : Requiem & Mass No.16, 'Coronation' (Apex)
  type: MusicAlbum
  date published: 1982
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: DEA808700303
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:21:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3b242cf64a0333031b321d27902f64956652a0ad38dfea9b29822f57c7f7e88a
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/DEA808700303
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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Mozart: Mass in C Major, K. 317, "Coronation": Agnus Dei
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track: Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco moto
track: Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": III. Rondo (Allegro)
track: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
track: Violin Sonata No. 5 in F Major, Op. 24 "Spring": I. Allegro
track: Symphony No. 6 in F Major, Op. 68 "Pastoral": I. Awakening of Cheerful Feelings on Arrival in the Countryside (Allegro ma non troppo)
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track: Symphony No. 2 in D Major, Op. 36: II. Larghetto
track: Violin Sonata No. 9 in A Major, Op. 47 "Kreutzer Sonata": I. Adagio sostenuto - Presto
track: Symphony No. 3 in E-Flat Major, Op. 55 "Eroica": I. Allegro con brio
track: Symphony No. 3 in E-Flat Major, Op. 55 "Eroica": II. Marcia funébre (Adagio assai)
track: Missa Solemnis in D Major, Op. 123: III. Credo
track: Symphony No. 7 in A Major, Op. 92: I. Poco sostenuto - Vivace
track: Piano Concerto No. 2 in B-Flat Major, Op. 19: II. Adagio
track: Piano Sonata No. 17 in D Minor, Op. 31 No. 2 "The Tempest": I. Largo - Allegro
track: 10 Variations on "Ich bin der Schneider Kakadu", Op. 121a
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track: 3 Duets for Clarinet and Bassoon, WoO 27 No. 1: I. Allegro (Arr. for Clarinet, Bassoon and Piano)
track: 6 Bagatelles, Op. 126: VI. Presto - Andante amabile e con moto
track: Eroica Variations in E-Flat Major, Op. 35
track: Consecration of the House, Op. 124: Overture
track: Romance for Violin and Orchestra in G Major, Op. 40

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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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b8a6b4d2842288501f54a67000d98ffc5c0a4e3041d69097f219f4b2330a6b. 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/SEWDL6018031.
date published: 2026-07-08T03:20:19Z

Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio cantabile
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
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
  type: PropertyValue
  value: -25.332
additional property: Key Name
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additional property: Mode Name
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Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco moto
type: MusicRecording
duration: PT8M10S
duration ms: 490440
explicit: false
by artist: Ludwig van Beethoven
by artist: Richard Hickox
by artist: Cristina Ortiz
by artist: City of London Sinfonia
in album: This is Beethoven
  type: MusicAlbum
  date published: 2021-08-28
popularity: 2
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: SEWDL0558702
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T04:42:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4399ba161c83aad0b2fe1b969b8e40e157d90623b33d5d9bdd13f1d89796e257
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/SEWDL0558702
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4399ba161c83aad0b2fe1b969b8e40e157d90623b33d5d9bdd13f1d89796e257. 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/SEWDL0558702.
  date published: 2026-07-08T03:20:19Z
audio: Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco moto
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 101.009
  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.204
  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)
    type: PropertyValue
    value: 0.04
  additional property: Loudness (dB)
    type: PropertyValue
    value: -32.674
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
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Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": III. Rondo (Allegro)
type: MusicRecording
duration: PT10M5S
duration ms: 605600
explicit: false
by artist: Ludwig van Beethoven
by artist: Richard Hickox
by artist: Cristina Ortiz
by artist: City of London Sinfonia
in album: This is Beethoven
  type: MusicAlbum
  date published: 2021-08-28
popularity: 2
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: SEWDL0558703
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:16:34+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x6f4bea8e69d9ce482198959daa33ef9a316f1ebb10c49757a60d19673b55ae63
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/SEWDL0558703
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4bea8e69d9ce482198959daa33ef9a316f1ebb10c49757a60d19673b55ae63. 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/SEWDL0558703.
  date published: 2026-07-08T03:20:19Z
audio: Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": III. Rondo (Allegro)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.413
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.312
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.99
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.905
  additional property: Liveness
    type: PropertyValue
    value: 0.125
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.16
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.493
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
type: MusicRecording
duration: PT5M26S
duration ms: 326980
explicit: false
by artist: Ludwig van Beethoven
by artist: Henrik Måwe
in album: This is Beethoven
  type: MusicAlbum
  date published: 2021-08-28
popularity: 3
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: SEWDL6018032
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T12:19:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x998dfd12fb08df920da6c02f0bd4827b49ab6cad28efc09e4400e79479ed5c3d
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/SEWDL6018032
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998dfd12fb08df920da6c02f0bd4827b49ab6cad28efc09e4400e79479ed5c3d. 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/SEWDL6018032.
  date published: 2026-07-08T03:20:19Z
audio: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 161.657
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.221
  additional property: Energy
    type: PropertyValue
    value: 0.068
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.99
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.937
  additional property: Liveness
    type: PropertyValue
    value: 0.108
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.122
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.338
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Violin Sonata No. 5 in F Major, Op. 24 "Spring": I. Allegro
type: MusicRecording
duration: PT10M9S
duration ms: 609600
explicit: false
by artist: Ludwig van Beethoven
by artist: Carlos Moerdijk
by artist: Emmy Verhey
in album: This is Beethoven
  type: MusicAlbum
  date published: 2021-08-28
popularity: 3
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: SEWDL0718401
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x303a51f09a98869dd962cc0eeb918c69454505c14820adeaddf7c9ec101e61fb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960397
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0718401
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x303a51f09a98869dd962cc0eeb918c69454505c14820adeaddf7c9ec101e61fb. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0718401.
  date published: 2026-07-31T12:24:41Z
audio: Violin Sonata No. 5 in F Major, Op. 24 "Spring": I. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 145.332
  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: 0.355
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.967
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.093
  additional property: Liveness
    type: PropertyValue
    value: 0.067
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.201
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.294
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
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Symphony No. 6 in F Major, Op. 68 "Pastoral": I. Awakening of Cheerful Feelings on Arrival in the Countryside (Allegro ma non troppo)
type: MusicRecording
duration: PT9M8S
duration ms: 548013
explicit: false
by artist: Ludwig van Beethoven
by artist: Eduard Lindenberg
by artist: Vienna Volksoper Orchestra
in album: This is Beethoven
  type: MusicAlbum
  date published: 2021-08-28
popularity: 2
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: SEWDL0110006
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x313576806eb2c807f7768106df1a724cc9bb15d03584a067eca90a64a00c05b7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960478
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960478
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0110006
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T23:30:38Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313576806eb2c807f7768106df1a724cc9bb15d03584a067eca90a64a00c05b7. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/SEWDL0110006.
  date published: 2026-07-31T23:30:38Z
audio: Symphony No. 6 in F Major, Op. 68 "Pastoral": I. Awakening of Cheerful Feelings on Arrival in the Countryside (Allegro ma non troppo)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.478
  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: 0.321
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.938
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.276
  additional property: Liveness
    type: PropertyValue
    value: 0.095
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.169
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.606
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
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Romance No. 2 in F Major for Violin and Orchestra, Op. 50
type: MusicRecording
duration: PT8M41S
duration ms: 521039
explicit: false
by artist: Ludwig van Beethoven
by artist: Ilmar Lapinsch
by artist: Alexei Bruni
by artist: State Symphony Capella of Russia
in album: This is Beethoven
  type: MusicAlbum
  date published: 2021-08-28
popularity: 2
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: SEWDL9418014
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T09:38:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfd49fa985d3d1acaca352858b9e0e8fe8e37eaa5ddec06a2bb4026b07ce3118f
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/SEWDL9418014
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd49fa985d3d1acaca352858b9e0e8fe8e37eaa5ddec06a2bb4026b07ce3118f. 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/SEWDL9418014.
  date published: 2026-07-08T03:20:19Z
audio: Romance No. 2 in F Major for Violin and Orchestra, Op. 50
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.701
  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: 0.238
  additional property: Energy
    type: PropertyValue
    value: 0.157
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.902
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.747
  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.15
  additional property: Key Name
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    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Symphony No. 2 in D Major, Op. 36: II. Larghetto
type: MusicRecording
duration: PT12M38S
duration ms: 758906
explicit: false
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by artist: Juozas Domarkas
by artist: Moscow Radio Symphony Orchestra
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popularity: 2
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: OTSVerificationAPI
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Symphony No. 2 in D Major, Op. 36: II. Larghetto
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Violin Sonata No. 9 in A Major, Op. 47 "Kreutzer Sonata": I. Adagio sostenuto - Presto
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by artist: Carlos Moerdijk
by artist: Emmy Verhey
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popularity: 2
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: OTSVerificationAPI
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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: 2026-07-31T21:25:57Z
audio: Violin Sonata No. 9 in A Major, Op. 47 "Kreutzer Sonata": I. Adagio sostenuto - Presto
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Symphony No. 3 in E-Flat Major, Op. 55 "Eroica": I. Allegro con brio
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duration: PT14M59S
duration ms: 899200
explicit: false
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by artist: Woldemar Nelsson
by artist: SWR Symphony Orchestra
in album: This is Beethoven
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  date published: 2021-08-28
popularity: 2
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: OTSVerificationAPI
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Symphony No. 3 in E-Flat Major, Op. 55 "Eroica": I. Allegro con brio
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Symphony No. 3 in E-Flat Major, Op. 55 "Eroica": II. Marcia funébre (Adagio assai)
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duration: PT15M16S
duration ms: 916693
explicit: false
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by artist: Woldemar Nelsson
by artist: SWR Symphony Orchestra
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popularity: 2
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 3 in E-Flat Major, Op. 55 "Eroica": II. Marcia funébre (Adagio assai)
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Missa Solemnis in D Major, Op. 123: III. Credo
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duration: PT19M6S
duration ms: 1146000
explicit: false
by artist: Ludwig van Beethoven
by artist: Michael Gielen
by artist: Josef Protschka
by artist: Kurt Rydl
by artist: Marjana Lipovsek
by artist: Phyllis Bryn-Julson
by artist: Wolfgang Hock
by artist: SWR Symphony Orchestra
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popularity: 2
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: OTSVerificationAPI
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Missa Solemnis in D Major, Op. 123: III. Credo
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Symphony No. 7 in A Major, Op. 92: I. Poco sostenuto - Vivace
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duration: PT12M31S
duration ms: 751893
explicit: false
by artist: Ludwig van Beethoven
by artist: Vladimir Fedoseyev
by artist: Moscow Radio Symphony Orchestra
in album: This is Beethoven
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  date published: 2021-08-28
popularity: 2
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: OTSVerificationAPI
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e524f4978141cf93f584c85f499da27062aa8845b2556e9d0c5b693b9a1921b. 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/SEWDL9440246.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 7 in A Major, Op. 92: I. Poco sostenuto - Vivace
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Piano Concerto No. 2 in B-Flat Major, Op. 19: II. Adagio
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duration: PT11M40S
duration ms: 700933
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by artist: Jordi Mora
by artist: Elisabeth Sombart
by artist: Munich Youth Orchestra
in album: This is Beethoven
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  date published: 2021-08-28
popularity: 2
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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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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Piano Sonata No. 17 in D Minor, Op. 31 No. 2 "The Tempest": I. Largo - Allegro
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10 Variations on "Ich bin der Schneider Kakadu", Op. 121a
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Piano Sonata No. 23 in F Minor, Op. 57 "Appassionata": II. Andante con moto
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  date published: 2026-07-31T23:30:38Z
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3 Duets for Clarinet and Bassoon, WoO 27 No. 1: I. Allegro (Arr. for Clarinet, Bassoon and Piano)
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6 Bagatelles, Op. 126: VI. Presto - Andante amabile e con moto
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Eroica Variations in E-Flat Major, Op. 35
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Consecration of the House, Op. 124: Overture
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Consecration of the House, Op. 124: Overture
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Romance for Violin and Orchestra in G Major, Op. 40
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duration: PT8M8S
duration ms: 488200
explicit: false
by artist: Ludwig van Beethoven
by artist: Ilmar Lapinsch
by artist: Alexei Bruni
by artist: State Symphony Capella of Russia
in album: This is Beethoven
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  date published: 2021-08-28
popularity: 1
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: SEWDL9418013
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL9418013
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbdc90103cda509c619ecf63304d46221729d350d7152b60c4db457f90a287ec. 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/SEWDL9418013.
  date published: 2026-07-08T03:20:19Z
audio: Romance for Violin and Orchestra in G Major, Op. 40
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  additional property: Tempo (BPM)
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Beethoven Hits
type: MusicAlbum
date published: 2019-04-06
track: Symphony No. 5 in C Minor, Op. 67 "Fate": I. Allegro con brio
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  by artist: Ludwig van Beethoven
  by artist: David Parry
  by artist: London Philharmonic Orchestra
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    type: MusicAlbum
    date published: 2019-04-06
  popularity: 12
  genre: classical
  genre: classical-piano
  genre: chamber-music
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  additional property: CopyrightID
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  additional property: OTSBitcoinBlock
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL9750002
  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa891ed71652dbf6da1e83cbdacb41a32ad6a25e50f59ec6dc1956e10bb88e92d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEWDL9750002.
    date published: 2026-07-02T03:55:08Z
  audio: Symphony No. 5 in C Minor, Op. 67 "Fate": I. Allegro con brio
    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: Acousticness
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track: Bagatelle in A Minor, WoO 59 "Für Elise"
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  by artist: Henrik Måwe
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    type: MusicAlbum
    date published: 2019-04-06
  popularity: 2
  genre: classical
  genre: classical-piano
  genre: chamber-music
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  additional property: CopyrightRegisteredAt
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
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    date published: 2026-07-08T03:20:19Z
  audio: Bagatelle in A Minor, WoO 59 "Für Elise"
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    additional property: Acousticness
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    additional property: Valence (Positivity)
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track: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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  duration: PT5M26S
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  explicit: false
  by artist: Ludwig van Beethoven
  by artist: Henrik Måwe
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    type: MusicAlbum
    date published: 2019-04-06
  popularity: 12
  genre: classical
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  additional property: CopyrightID
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  additional property: OTSBitcoinBlock
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  subject of: OpenTimestamps Proof of Existence
  audio: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
track: Fidelio, Op. 72: Overture
track: Symphony No. 9 in D Minor, Op. 125 "Choral": II. Scherzo (Molto vivace)
track: Piano Sonata No. 17 in D Minor, Op. 31 No. 2 "The Tempest": III. Allegretto

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CopyrightChainExplorerURL
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OTSHash
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OTSBitcoinBlock
type: PropertyValue
value: 956304

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956304

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL6018032

OTSTimestamp
type: PropertyValue
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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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998dfd12fb08df920da6c02f0bd4827b49ab6cad28efc09e4400e79479ed5c3d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEWDL6018032.
date published: 2026-07-02T03:55:08Z

Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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
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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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Fidelio, Op. 72: Overture
type: MusicRecording
duration: PT6M42S
duration ms: 402640
explicit: false
by artist: Ludwig van Beethoven
by artist: Anton Nanut
by artist: RTV Slovenia Symphony Orchestra
in album: Beethoven Hits
  type: MusicAlbum
  date published: 2019-04-06
popularity: 4
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: SEWDL0501603
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fcfb1f39ea2c5f316c5ead48b64661763ff80a4d8265e6185fe58d9bf33738f. 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/SEWDL0501603.
  date published: 2026-07-08T03:20:19Z
audio: Fidelio, Op. 72: Overture
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Symphony No. 9 in D Minor, Op. 125 "Choral": II. Scherzo (Molto vivace)
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duration: PT10M3S
duration ms: 603029
explicit: false
by artist: Ludwig van Beethoven
by artist: Wilhelm Schüchter
by artist: Nordwestdeutsche Philharmonie
in album: Beethoven Hits
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popularity: 1
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1048b98a1e639a48718d201d6f49936e76f26c05c6c58f313bf8dd4a7eaa7e8e. 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/CAM460670187.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 9 in D Minor, Op. 125 "Choral": II. Scherzo (Molto vivace)
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  additional property: Tempo (BPM)
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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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The Essentials: Mozart
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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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track: Piano Sonata No. 11 in A Major, K. 331: III. Rondo, "Alla turca"
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-29T19:35:34Z
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track: Symphony No. 25 in G Minor, K. 183: I. Allegro con brio
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  subject of: OpenTimestamps Proof of Existence
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track: Serenade No. 10 in B-Flat Major, K. 361, "Gran Partita": IV. Adagio
track: Masonic Funeral Music, K. 477: Maurerische Trauermusik (Masonic Funeral Music), K. 477
track: Serenade No. 6 in D Major, K. 239, "Serenata Notturna": I. Marcia: Maestoso
track: String Quartet No. 19 in C Major, K. 465, "Dissonance": I. Adagio - Allegro
track: Piano Sonata No. 18 in D Major, K. 576: II. Adagio
track: Ave Verum Corpus, K. 618: Ave verum corpus, K. 618
track: Don Giovanni, K. 527: Overture
track: Così fan tutte, K. 588: Overture
track: Die Zauberflöte, K. 620: Act II: Der Holle Rache kocht in meinen Herzen
track: Le nozze di Figaro (The Marriage of Figaro), K. 492, Act I: Aria: Non più andrai, farfallone amoroso
track: Idomeneo, re di Creta, K. 366: Overture
track: Il rè pastore, K. 208: Il re pastore, K. 208, Act I: Aria: Aer tranquilo e disereni

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

Symphony No. 25 in G Minor, K. 183: I. Allegro con brio
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Serenade No. 10 in B-Flat Major, K. 361, "Gran Partita": IV. Adagio
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additional property: OTSVerificationAPI
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T12:58:18Z
audio: Serenade No. 10 in B-Flat Major, K. 361, "Gran Partita": IV. Adagio
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Masonic Funeral Music, K. 477: Maurerische Trauermusik (Masonic Funeral Music), K. 477
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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Serenade No. 6 in D Major, K. 239, "Serenata Notturna": I. Marcia: Maestoso
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duration: PT4M14S
duration ms: 254000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Swedish Chamber Orchestra
by artist: Petter Sundkvist
in album: The Essentials: Mozart
  type: MusicAlbum
  date published: 2016-04-29
popularity: 3
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USB8U1601075
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f58ca7e41b5c660474072ad9fee4de88e25225aa12633562fbf2cbfc9072aa. 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/USB8U1601075.
  date published: 2026-07-08T03:20:19Z
audio: Serenade No. 6 in D Major, K. 239, "Serenata Notturna": I. Marcia: Maestoso
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String Quartet No. 19 in C Major, K. 465, "Dissonance": I. Adagio - Allegro
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duration: PT10M55S
duration ms: 655506
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Moyzesovo kvarteto
in album: The Essentials: Mozart
  type: MusicAlbum
  date published: 2016-04-29
popularity: 3
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USB8U1601077
additional property: CopyrightID
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1601077
additional property: OTSTimestamp
  type: PropertyValue
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-30T02:05:19Z
audio: String Quartet No. 19 in C Major, K. 465, "Dissonance": I. Adagio - Allegro
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Piano Sonata No. 18 in D Major, K. 576: II. Adagio
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duration: PT5M38S
duration ms: 338426
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Gianluca Luisi
in album: The Essentials: Mozart
  type: MusicAlbum
  date published: 2016-04-29
popularity: 6
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USB8U1601081
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-29T13:09:35Z
audio: Piano Sonata No. 18 in D Major, K. 576: II. Adagio
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  additional property: Tempo (BPM)
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Ave Verum Corpus, K. 618: Ave verum corpus, K. 618
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duration: PT2M50S
duration ms: 170000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Vienna Boys' Choir
by artist: Chorus Viennensis
by artist: Volksoper Symphonieorchester Wien
by artist: Peter Marschik
in album: The Essentials: Mozart
  type: MusicAlbum
  date published: 2016-04-29
popularity: 5
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USB8U1601083
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1601083
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-29T19:35:34Z
audio: Ave Verum Corpus, K. 618: Ave verum corpus, K. 618
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Don Giovanni, K. 527: Overture
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duration: PT5M56S
duration ms: 356026
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: The Essentials: Mozart
  type: MusicAlbum
  date published: 2016-04-29
popularity: 2
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USB8U1601095
additional property: CopyrightID
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0766e9fababc31a015717ca899bb10b3a2133da8f50a4326c37807f6f4484e13. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USB8U1601095.
  date published: 2026-07-31T02:51:48Z
audio: Don Giovanni, K. 527: Overture
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  additional property: Acousticness
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Così fan tutte, K. 588: Overture
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duration: PT4M22S
duration ms: 262440
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by artist: Wolfgang Amadeus Mozart
by artist: Slovak Philharmonic Chorus
by artist: Capella Istropolitana
by artist: Johannes Wildner
in album: The Essentials: Mozart
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  date published: 2016-04-29
popularity: 2
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USB8U1601099
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d0686c230d7a108830ff917d80edcb125c25aaed63858679e71bb3606c02b1. 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/USB8U1601099.
  date published: 2026-07-08T03:20:19Z
audio: Così fan tutte, K. 588: Overture
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Die Zauberflöte, K. 620: Act II: Der Holle Rache kocht in meinen Herzen
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by artist: Budapest Failoni Chamber Orchestra
by artist: Michael Halasz
in album: The Essentials: Mozart
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  date published: 2016-04-29
popularity: 2
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
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additional property: CopyrightID
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T14:36:16Z
audio: Die Zauberflöte, K. 620: Act II: Der Holle Rache kocht in meinen Herzen
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Le nozze di Figaro (The Marriage of Figaro), K. 492, Act I: Aria: Non più andrai, farfallone amoroso
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T18:23:33Z
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Idomeneo, re di Creta, K. 366: Overture
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Idomeneo, re di Creta, K. 366: Overture
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Il rè pastore, K. 208: Il re pastore, K. 208, Act I: Aria: Aer tranquilo e disereni
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T11:13:28Z
audio: Il rè pastore, K. 208: Il re pastore, K. 208, Act I: Aria: Aer tranquilo e disereni
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The 99 Most Essential Beethoven Masterpieces
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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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track: Concerto No. 5 in E-Flat Major for Piano and Orchestra, Op. 73, "Emperor": II. Adagio un poco mosso - III. Rondo: Allegro
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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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track: Sonata No. 14 in C-Sharp Minor for Piano, Op. 27:2, "Moonlight": III. Presto agitato
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track: Concerto in D Major for Violin and Orchestra, Op. 61: III. Rondo: Allegro

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OpenTimestamps Proof of Existence
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date published: 2026-07-22T05:29:55Z

Sonata No. 14 in C-Sharp Minor for Piano, Op. 27:2, "Moonlight": III. Presto agitato
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  audio: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
track: Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": I. Allegro
track: Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco moto
track: Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": III. Rondo (Allegro)
track: Piano Sonata No. 20 in G Major, Op. 49 No. 2: I. Allegro ma non troppo
track: Piano Sonata No. 12 in A-Flat Major, Op. 26 "Funeral March": I. Andante con variazione
track: Twelve Contredanses for Orchestra, WoO 14: No. 12, Contredanse - Trio
track: Violin Sonata No. 10 in G Major, Op. 96: I. Allegro moderato
track: Symphony No. 7 in A Major, Op. 92: II. Allegretto
track: Piano Sonata No. 31 in A-Flat Major, Op. 110: I. Moderato cantabile molto espressivo
track: Violin Sonata No. 1 in D Major, Op. 12: II. Tema con variazioni (Andante con moto)
track: Violin Concerto in D Major, Op. 61: II. Larghetto
track: Piano Concerto No. 2 in B-Flat Major, Op. 19: II. Adagio
track: Leonore: Overture No. 3, Op. 72b
track: Missa Solemnis in D Major, Op. 123: III. Credo
track: Violin Sonata No. 9 in A Major, Op. 47 "Kreutzer Sonata": I. Adagio sostenuto - Presto
track: Symphony No. 2 in D Major, Op. 36: II. Larghetto
track: Romance for Violin and Orchestra in F Major, Op. 50
track: Wind Octet in E-Flat Major, Op. 103: I. Allegro
track: Symphony No. 6 in F Major, Op. 68 "Pastoral": I. Awakening of Cheerful Feelings on Arrival in the Countryside (Allegro ma non troppo)

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Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco moto
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Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": III. Rondo (Allegro)
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Piano Sonata No. 20 in G Major, Op. 49 No. 2: I. Allegro ma non troppo
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Piano Sonata No. 12 in A-Flat Major, Op. 26 "Funeral March": I. Andante con variazione
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Twelve Contredanses for Orchestra, WoO 14: No. 12, Contredanse - Trio
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Violin Sonata No. 10 in G Major, Op. 96: I. Allegro moderato
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Symphony No. 7 in A Major, Op. 92: II. Allegretto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T09:58:01Z
audio: Symphony No. 7 in A Major, Op. 92: II. Allegretto
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Piano Sonata No. 31 in A-Flat Major, Op. 110: I. Moderato cantabile molto espressivo
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duration: PT6M33S
duration ms: 393133
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by artist: Freddy Kempf
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popularity: 6
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T13:21:01Z
audio: Piano Sonata No. 31 in A-Flat Major, Op. 110: I. Moderato cantabile molto espressivo
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Violin Sonata No. 1 in D Major, Op. 12: II. Tema con variazioni (Andante con moto)
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duration: PT7M51S
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by artist: Carlos Moerdijk
by artist: Emmy Verhey
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genre: classical
genre: classical-piano
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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: Violin Sonata No. 1 in D Major, Op. 12: II. Tema con variazioni (Andante con moto)
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Violin Concerto in D Major, Op. 61: II. Larghetto
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duration: PT7M36S
duration ms: 456960
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by artist: Michael Gielen
by artist: Christian Tetzlaff
by artist: SWR Symphony Orchestra
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popularity: 1
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T19:53:13Z
audio: Violin Concerto in D Major, Op. 61: II. Larghetto
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Piano Concerto No. 2 in B-Flat Major, Op. 19: II. Adagio
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popularity: 1
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T17:29:52Z
audio: Piano Concerto No. 2 in B-Flat Major, Op. 19: II. Adagio
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Leonore: Overture No. 3, Op. 72b
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duration ms: 815240
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T18:48:12Z
audio: Leonore: Overture No. 3, Op. 72b
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Missa Solemnis in D Major, Op. 123: III. Credo
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duration ms: 1146000
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Missa Solemnis in D Major, Op. 123: III. Credo
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Violin Sonata No. 9 in A Major, Op. 47 "Kreutzer Sonata": I. Adagio sostenuto - Presto
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duration: PT12M13S
duration ms: 733533
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by artist: Carlos Moerdijk
by artist: Emmy Verhey
in album: Beethoven Light Classical
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  date published: 2020-11-01
popularity: 0
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: OTSVerificationAPI
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T09:54:03Z
audio: Violin Sonata No. 9 in A Major, Op. 47 "Kreutzer Sonata": I. Adagio sostenuto - Presto
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Symphony No. 2 in D Major, Op. 36: II. Larghetto
type: MusicRecording
duration: PT12M38S
duration ms: 758906
explicit: false
by artist: Ludwig van Beethoven
by artist: Juozas Domarkas
by artist: Moscow Radio Symphony Orchestra
in album: Beethoven Light Classical
  type: MusicAlbum
  date published: 2020-11-01
popularity: 1
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 2 in D Major, Op. 36: II. Larghetto
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Romance for Violin and Orchestra in F Major, Op. 50
type: MusicRecording
duration: PT8M41S
duration ms: 521039
explicit: false
by artist: Ludwig van Beethoven
by artist: Ilmar Lapinsch
by artist: Alexei Bruni
by artist: State Symphony Capella of Russia
in album: Beethoven Light Classical
  type: MusicAlbum
  date published: 2020-11-01
popularity: 1
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: SEWDL9418014
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSVerificationAPI
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-08T03:20:19Z
audio: Romance for Violin and Orchestra in F Major, Op. 50
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Wind Octet in E-Flat Major, Op. 103: I. Allegro
type: MusicRecording
duration: PT8M12S
duration ms: 492706
explicit: false
by artist: Ludwig van Beethoven
by artist: Bernd Schober
by artist: Winds of the Saxon State Orchestra
in album: Beethoven Light Classical
  type: MusicAlbum
  date published: 2020-11-01
popularity: 0
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: SEWDL0709508
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83da1409ea809629038089766b9f600424479027be123a38d494554ec1a43c54. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/SEWDL0709508.
  date published: 2026-07-31T16:07:24Z
audio: Wind Octet in E-Flat Major, Op. 103: I. Allegro
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Symphony No. 6 in F Major, Op. 68 "Pastoral": I. Awakening of Cheerful Feelings on Arrival in the Countryside (Allegro ma non troppo)
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duration: PT9M8S
duration ms: 548013
explicit: false
by artist: Ludwig van Beethoven
by artist: Eduard Lindenberg
by artist: Vienna Volksoper Orchestra
in album: Beethoven Light Classical
  type: MusicAlbum
  date published: 2020-11-01
popularity: 0
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: SEWDL0110006
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313576806eb2c807f7768106df1a724cc9bb15d03584a067eca90a64a00c05b7. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/SEWDL0110006.
  date published: 2026-07-31T18:48:12Z
audio: Symphony No. 6 in F Major, Op. 68 "Pastoral": I. Awakening of Cheerful Feelings on Arrival in the Countryside (Allegro ma non troppo)
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Beethoven Works 101
type: MusicAlbum
date published: 2020-02-01
track: Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": I. Grave - Allegro di molto e con brio
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  duration: PT11M16S
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  explicit: false
  by artist: Ludwig van Beethoven
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    type: MusicAlbum
    date published: 2020-02-01
  popularity: 4
  genre: classical
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  genre: chamber-music
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e470078855c0f61d00062934709ecdbe04f2f262d4a9e18563c61a0c1c302b. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/SEAEO0460010.
    date published: 2026-07-30T05:15:54Z
  audio: Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": I. Grave - Allegro di molto e con brio
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Acousticness
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track: Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": III. Rondo: Allegro
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  popularity: 3
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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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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date published: 2026-07-02T03:55:08Z

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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T19:35:34Z
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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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  subject of: OpenTimestamps Proof of Existence
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  audio: Fierrabras, D. 796, Act I: No. 2, Duet. O mög' auf froher Hoffnung Schwingen
track: Fierrabras, D. 796, Act I: No. 4b, Bass and Chorus. Des Krieges Los hat Euch
track: Fierrabras, D. 796, Act I: No. 4d, Ensemble: Der Landestöchter fromme Pflichten
track: Fierrabras, D. 796, Act I: No. 3, March and Chorus: Zu hohen Ruhmespforten (Reprise)
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OpenTimestamps Proof of Existence
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date published: 2026-07-31T12:24:41Z

Fierrabras, D. 796, Act I: No. 2, Duet. O mög' auf froher Hoffnung Schwingen
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subject of: OpenTimestamps Proof of Existence
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Fierrabras, D. 796, Act I: No. 4d, Ensemble: Der Landestöchter fromme Pflichten
type: MusicRecording
duration: PT4M17S
duration ms: 257666
explicit: false
by artist: Franz Schubert
by artist: Karita Mattila
by artist: Robert Holl
by artist: Josef Protschka
by artist: Thomas Hampson
by artist: Arnold Schoenberg Chor
by artist: Erwin Ortner
by artist: Chamber Orchestra of Europe
by artist: Claudio Abbado
in album: Schubert: Fierrabras
  type: MusicAlbum
  date published: 1990-01-01
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: DEF058831708
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
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960379
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058831708
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T09:25:34Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T09:25:34Z
audio: Fierrabras, D. 796, Act I: No. 4d, Ensemble: Der Landestöchter fromme Pflichten
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Fierrabras, D. 796, Act I: No. 3, March and Chorus: Zu hohen Ruhmespforten (Reprise)
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duration: PT2M51S
duration ms: 171440
explicit: false
by artist: Franz Schubert
by artist: Arnold Schoenberg Chor
by artist: Erwin Ortner
by artist: Chamber Orchestra of Europe
by artist: Claudio Abbado
in album: Schubert: Fierrabras
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  date published: 1990-01-01
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSVerificationAPI
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Fierrabras, D. 796, Act I: No. 3, March and Chorus: Zu hohen Ruhmespforten (Reprise)
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Fierrabras, D. 796, Act I: No. 6a, Romance. Der Abend sinkt auf stiller Flur
type: MusicRecording
duration: PT5M14S
duration ms: 314933
explicit: false
by artist: Franz Schubert
by artist: Robert Gambill
by artist: Karita Mattila
by artist: Chamber Orchestra of Europe
by artist: Claudio Abbado
in album: Schubert: Fierrabras
  type: MusicAlbum
  date published: 1990-01-01
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: DEF058831712
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: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-31T15:20:15Z
audio: Fierrabras, D. 796, Act I: No. 6a, Romance. Der Abend sinkt auf stiller Flur
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  additional property: Valence (Positivity)
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Nikolaus Harnoncourt Conducts Mozart
type: MusicAlbum
date published: 2022-03-18

Richard Strauss: Ariadne auf Naxos
type: MusicAlbum
date published: 1986-01-01
track: Ariadne auf Naxos, Op. 60 / Prologue: Orchestral Introduction
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  by artist: Wiener Philharmoniker
  by artist: James Levine
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058630301
  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00823694eef71bfc5f618bb957609e2830648737ca30d3334ba2709292f2b262. 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/DEF058630301.
    date published: 2026-07-08T03:20:19Z
  audio: Ariadne auf Naxos, Op. 60 / Prologue: Orchestral Introduction
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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      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: 0.208
    additional property: Energy
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      value: 0.149
    additional property: Speechiness
      type: PropertyValue
      value: 0.04
    additional property: Acousticness
      type: PropertyValue
      value: 0.961
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.833
    additional property: Liveness
      type: PropertyValue
      value: 0.664
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.128
    additional property: Loudness (dB)
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      value: -23.508
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track: Ariadne auf Naxos, Op. 60 / Opera: "Es gibt ein Reich"
  type: MusicRecording
  duration: PT5M50S
  duration ms: 350226
  explicit: false
  by artist: Richard Strauss
  by artist: Anna Tomowa-Sintow
  by artist: Wiener Philharmoniker
  by artist: James Levine
  in album: Richard Strauss: Ariadne auf Naxos
    type: MusicAlbum
    date published: 1986-01-01
  genre: classical
  genre: opera
  genre: orchestra
  isrc code: DEF058630311
  additional property: CopyrightID
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    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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    type: PropertyValue
    value: https://blockstream.info/api/block-height/960327
  additional property: OTSVerificationAPI
    type: PropertyValue
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  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
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    date published: 2026-07-31T00:26:26Z
  audio: Ariadne auf Naxos, Op. 60 / Opera: "Es gibt ein Reich"
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    additional property: Tempo (BPM)
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    additional property: Mode (Major/Minor)
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    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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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: Ariadne auf Naxos, Op. 60 / Prologue: "Mein Herr Haushofmeister!"
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  duration: PT5M53S
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  by artist: Richard Strauss
  by artist: Hermann Prey
  by artist: Otto Schenk
  by artist: Alfred Sramek
  by artist: Ewald Aichberger
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  by artist: Wiener Philharmoniker
  by artist: James Levine
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    type: MusicAlbum
    date published: 1986-01-01
  genre: classical
  genre: opera
  genre: orchestra
  isrc code: DEF058630302
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  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: Ariadne auf Naxos, Op. 60 / Prologue: "Mein Herr Haushofmeister!"
track: Ariadne auf Naxos, Op. 60 / Opera: "Die Dame gibt mit trüben Sinn" - "Wie sie sich schwingen"
track: Ariadne auf Naxos, Op. 60 / Prologue: "Du allmächtiger Gott!"
track: Ariadne auf Naxos, Op. 60 / Opera: "Großmächtige Prinzessin"
track: Ariadne auf Naxos, Op. 60 / Prologue: "'Die ungetreue Zerbinetta und ihre vier Liebhaber':"'
track: Ariadne auf Naxos, Op. 60 / Opera: "Hübsch gepredigt! Aber tauben Ohren!" - "Eine Stör- rische zu trösten"
track: Ariadne auf Naxos, Op. 60 / Prologue: "Ein Augenblick ist wenig"

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CopyrightRegisteredAt
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CopyrightChainExplorerURL
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OTSHash
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OTSBitcoinBlock
type: PropertyValue
value: 957118

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957118

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058630302

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7037cb76a10509d0997973d78e7b50085e838c4bfde1e6089b15ada9f1920039. 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/DEF058630302.
date published: 2026-07-08T03:20:19Z

Ariadne auf Naxos, Op. 60 / Prologue: "Mein Herr Haushofmeister!"
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additional property: Mode (Major/Minor)
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additional property: Danceability
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additional property: Acousticness
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Ariadne auf Naxos, Op. 60 / Opera: "Die Dame gibt mit trüben Sinn" - "Wie sie sich schwingen"
type: MusicRecording
duration: PT4M46S
duration ms: 286106
explicit: false
by artist: Richard Strauss
by artist: Hans Sojer
by artist: Josef Protschka
by artist: Urban Malmberg
by artist: Kurt Rydl
by artist: Kathleen Battle
by artist: Wiener Philharmoniker
by artist: James Levine
in album: Richard Strauss: Ariadne auf Naxos
  type: MusicAlbum
  date published: 1986-01-01
genre: classical
genre: opera
genre: orchestra
isrc code: DEF058630312
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T07:46:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe000d33a9f2f19bb3956067e75836b4e4108b3a47074d36794d735d4f2eaf33f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960368
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960368
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058630312
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T08:26:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe000d33a9f2f19bb3956067e75836b4e4108b3a47074d36794d735d4f2eaf33f. 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/DEF058630312.
  date published: 2026-07-31T08:26:41Z
audio: Ariadne auf Naxos, Op. 60 / Opera: "Die Dame gibt mit trüben Sinn" - "Wie sie sich schwingen"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.19
  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: 0.441
  additional property: Energy
    type: PropertyValue
    value: 0.161
  additional property: Speechiness
    type: PropertyValue
    value: 0.093
  additional property: Acousticness
    type: PropertyValue
    value: 0.988
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.004
  additional property: Liveness
    type: PropertyValue
    value: 0.337
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.395
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.009
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Ariadne auf Naxos, Op. 60 / Prologue: "Du allmächtiger Gott!"
type: MusicRecording
duration: PT7M38S
duration ms: 458706
explicit: false
by artist: Richard Strauss
by artist: Gunter von Kannen
by artist: Agnes Baltsa
by artist: Gary Lakes
by artist: Kathleen Battle
by artist: Anna Tomowa-Sintow
by artist: Hermann Prey
by artist: Heinz Zednik
by artist: Wiener Philharmoniker
by artist: James Levine
in album: Richard Strauss: Ariadne auf Naxos
  type: MusicAlbum
  date published: 1986-01-01
genre: classical
genre: opera
genre: orchestra
isrc code: DEF058630303
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T10:25:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7b38a727d271c2782891b5a64082160ed972c027bbd6a3ee2112b4b69367e21d
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/DEF058630303
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b38a727d271c2782891b5a64082160ed972c027bbd6a3ee2112b4b69367e21d. 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/DEF058630303.
  date published: 2026-07-08T03:20:19Z
audio: Ariadne auf Naxos, Op. 60 / Prologue: "Du allmächtiger Gott!"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.772
  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: 0.359
  additional property: Energy
    type: PropertyValue
    value: 0.092
  additional property: Speechiness
    type: PropertyValue
    value: 0.089
  additional property: Acousticness
    type: PropertyValue
    value: 0.968
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.563
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.137
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.23
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Ariadne auf Naxos, Op. 60 / Opera: "Großmächtige Prinzessin"
type: MusicRecording
duration: PT11M21S
duration ms: 681000
explicit: false
by artist: Richard Strauss
by artist: Kathleen Battle
by artist: Wiener Philharmoniker
by artist: James Levine
in album: Richard Strauss: Ariadne auf Naxos
  type: MusicAlbum
  date published: 1986-01-01
genre: classical
genre: opera
genre: orchestra
isrc code: DEF058630313
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T02:31:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf6112dbea555027bc78d0b3ff06c996ba47bd0e4a50d14153f7bed3c3888047c
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/DEF058630313
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6112dbea555027bc78d0b3ff06c996ba47bd0e4a50d14153f7bed3c3888047c. 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/DEF058630313.
  date published: 2026-07-08T03:20:19Z
audio: Ariadne auf Naxos, Op. 60 / Opera: "Großmächtige Prinzessin"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 98.597
  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: 0.248
  additional property: Energy
    type: PropertyValue
    value: 0.076
  additional property: Speechiness
    type: PropertyValue
    value: 0.061
  additional property: Acousticness
    type: PropertyValue
    value: 0.981
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.03
  additional property: Liveness
    type: PropertyValue
    value: 0.141
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.061
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.914
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Ariadne auf Naxos, Op. 60 / Prologue: "'Die ungetreue Zerbinetta und ihre vier Liebhaber':"'
type: MusicRecording
duration: PT15M24S
duration ms: 924626
explicit: false
by artist: Richard Strauss
by artist: Agnes Baltsa
by artist: Gary Lakes
by artist: Kathleen Battle
by artist: Anna Tomowa-Sintow
by artist: Hermann Prey
by artist: Heinz Zednik
by artist: Otto Schenk
by artist: Alfred Sramek
by artist: Wiener Philharmoniker
by artist: James Levine
in album: Richard Strauss: Ariadne auf Naxos
  type: MusicAlbum
  date published: 1986-01-01
genre: classical
genre: opera
genre: orchestra
isrc code: DEF058630304
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T17:45:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x311cc43414e4e14efd8fe9b51487e8a6c2ddf9fbabf58f7afb13a1f0d45b47b2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960291
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960291
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058630304
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T18:23:33Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311cc43414e4e14efd8fe9b51487e8a6c2ddf9fbabf58f7afb13a1f0d45b47b2. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DEF058630304.
  date published: 2026-07-30T18:23:33Z
audio: Ariadne auf Naxos, Op. 60 / Prologue: "'Die ungetreue Zerbinetta und ihre vier Liebhaber':"'
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.32
  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: 0.353
  additional property: Energy
    type: PropertyValue
    value: 0.112
  additional property: Speechiness
    type: PropertyValue
    value: 0.114
  additional property: Acousticness
    type: PropertyValue
    value: 0.946
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.15
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.08
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.476
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Ariadne auf Naxos, Op. 60 / Opera: "Hübsch gepredigt! Aber tauben Ohren!" - "Eine Stör- rische zu trösten"
type: MusicRecording
duration: PT8M0S
duration ms: 480960
explicit: false
by artist: Richard Strauss
by artist: Kathleen Battle
by artist: Urban Malmberg
by artist: Kurt Rydl
by artist: Josef Protschka
by artist: Hans Sojer
by artist: Wiener Philharmoniker
by artist: James Levine
in album: Richard Strauss: Ariadne auf Naxos
  type: MusicAlbum
  date published: 1986-01-01
genre: classical
genre: opera
genre: orchestra
isrc code: DEF058630314
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T02:14:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x34668448ce3d65ae9300b19b914c0d6443e2326d2aa122729240ea0868e91971
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960337
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960337
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058630314
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T02:51:48Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34668448ce3d65ae9300b19b914c0d6443e2326d2aa122729240ea0868e91971. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DEF058630314.
  date published: 2026-07-31T02:51:48Z
audio: Ariadne auf Naxos, Op. 60 / Opera: "Hübsch gepredigt! Aber tauben Ohren!" - "Eine Stör- rische zu trösten"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.378
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.357
  additional property: Energy
    type: PropertyValue
    value: 0.147
  additional property: Speechiness
    type: PropertyValue
    value: 0.063
  additional property: Acousticness
    type: PropertyValue
    value: 0.979
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.22
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.237
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.989
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Ariadne auf Naxos, Op. 60 / Prologue: "Ein Augenblick ist wenig"
type: MusicRecording
duration: PT5M46S
duration ms: 346640
explicit: false
by artist: Richard Strauss
by artist: Agnes Baltsa
by artist: Hermann Prey
by artist: Kathleen Battle
by artist: Anna Tomowa-Sintow
by artist: Wiener Philharmoniker
by artist: James Levine
in album: Richard Strauss: Ariadne auf Naxos
  type: MusicAlbum
  date published: 1986-01-01
genre: classical
genre: opera
genre: orchestra
isrc code: DEF058630305
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T18:07:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf3dd9d29f65b5ef468838b8743f5cc87070c18d45194a64b0cf137950b4e438c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960291
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960291
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058630305
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T18:23:33Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3dd9d29f65b5ef468838b8743f5cc87070c18d45194a64b0cf137950b4e438c. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DEF058630305.
  date published: 2026-07-30T18:23:33Z
audio: Ariadne auf Naxos, Op. 60 / Prologue: "Ein Augenblick ist wenig"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 122.404
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6