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genre: opera
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followers: 188
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subject of: OpenTimestamps Proof of Existence
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album: Janácek: From the House of the Dead; Mládi; Ríkadla
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    by artist: Wiener Philharmoniker
    by artist: Sir Charles Mackerras
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-31T00:26:26Z
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      date published: 2026-07-29T23:20:38Z
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  track: From the House of the Dead, JW I/11, Act I: Moderato I - Live at Grosses Festspielhaus, Salzburg , 1992
  track: From the House of the Dead, JW I/11, Act I: Přivedou dnes pána! - Live at Grosses Festspielhaus, Salzburg , 1992
  track: From the House of the Dead, JW I/11, Act I: Neuvidí oko již těch krajů - Live at Grosses Festspielhaus, Salzburg , 1992
  track: From the House of the Dead, JW I/11, Act I: Aljejo, podávej nitku! - Live at Grosses Festspielhaus, Salzburg , 1992
  track: From the House of the Dead, JW I/11, Act II: A... a... - Live at Grosses Festspielhaus, Salzburg , 1992
  track: From the House of the Dead, JW I/11, Act II: Mil´y, mil´y, Aljejo! - Live at Grosses Festspielhaus, Salzburg , 1992
  track: From the House of the Dead, JW I/11, Act II: Skuratov. Poslali mne v Jurjea - Live at Grosses Festspielhaus, Salzburg , 1992
album: Janacek: Chamber & Orchestral Works
album: The Many Loves of Antonín Dvořák
album: Hurník: Šulamit - Novák: Passer Catulli - Eben: Loveless Songs
album: Tomášek, Vranický: Missae
album: Tomášek, Vranický, Koželuh: Missae
album: Janáček Essentials
album: Janáček: Male Choruses
album: Smetana: The Bartered Bride
album: Smetana: The Bartered Bride. Highlights from the Opera
album: Dvořák: Mass for Solists, Mixed Chorus and Organ
album: Famous Czech Opera Duets
album: Martinů: The Greek Passion
album: Dvořák: Kate and the Devil
album: Janácek: Operas
album: Verdi, Leoncavallo, Mascagni, Giordano: Scenes from Italian Operas
album: Life with Czech Music - Janáček, Martinů
album: Janáček: Glagolitic Mass
album: A Classical Encyclopedia: J as in Janáček
album: Magdalena Blahušiaková, Jaroslav Souček (Smetana, Janáček,Verdi, Foerster, Rossini)
album: Janácek: The Cunning Little Vixen
album: A Guided Tour of the Romantic Era, Vol. 14
album: Ryba: Hej, Mistře!
album: Salfen: Stations of Mychal
album: Haydn: Die Jahreszeiten (Czech Radio Symphony Orchestra & Czech Radio Chorus)
album: Zbyněk Vostřák - Portrétní deska ke skladatelovým padesátinám
album: Puccini: Boheme (La)
album: Suita na básně Michelangela Buonarrotiho pro bas a klavír, 145a, Symfonie č. 1 f moll, Op. 10
album: Klusák: Sonata for Violin and Wind Instruments - Burghauser: The Roads - Vostřák: Three Sonets after Shakespeare - Kučera: The Pied Piper
album: Music from 6 Continents (1991 Series)
album: Hurník: Solomon, Piano Studies - Šesták: Sonata da camera - Vacek: Olympic Fire
album: Kubík: To the Future Earth, Songs of Hope

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  date published: 2026-07-08T03:20:19Z
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From the House of the Dead, JW I/11, Act I: Přivedou dnes pána! - Live at Grosses Festspielhaus, Salzburg , 1992
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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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From the House of the Dead, JW I/11, Act I: Neuvidí oko již těch krajů - Live at Grosses Festspielhaus, Salzburg , 1992
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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 0x26805acb3ffb85e33f4f61a555adf4347a144720eee6b5803181bac54d5d25d8. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059232504.
  date published: 2026-07-31T17:29:52Z
audio: From the House of the Dead, JW I/11, Act I: Neuvidí oko již těch krajů - Live at Grosses Festspielhaus, Salzburg , 1992
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.868
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.234
  additional property: Energy
    type: PropertyValue
    value: 0.179
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.936
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.005
  additional property: Liveness
    type: PropertyValue
    value: 0.28
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.169
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.444
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Minor

From the House of the Dead, JW I/11, Act I: Aljejo, podávej nitku! - Live at Grosses Festspielhaus, Salzburg , 1992
type: MusicRecording
duration: PT6M50S
duration ms: 410440
explicit: false
by artist: Leoš Janáček
by artist: Elzbieta Szmytka
by artist: Barry Mccauley
by artist: Josef Veverka
by artist: Wiener Philharmoniker
by artist: Claudio Abbado
by artist: Wiener Staatsopernchor
by artist: Peter Burian
in album: Janácek: From the House of the Dead
  type: MusicAlbum
  date published: 2010-01-01
popularity: 0
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: DEF059232505
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T12:49:16+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x95522ace6a689ff3aa3100d30171e2cc1e6551109aa0320346679b37606f5268
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/DEF059232505
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 0x95522ace6a689ff3aa3100d30171e2cc1e6551109aa0320346679b37606f5268. 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/DEF059232505.
  date published: 2026-07-08T03:20:19Z
audio: From the House of the Dead, JW I/11, Act I: Aljejo, podávej nitku! - Live at Grosses Festspielhaus, Salzburg , 1992
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.936
  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: 0.264
  additional property: Energy
    type: PropertyValue
    value: 0.167
  additional property: Speechiness
    type: PropertyValue
    value: 0.068
  additional property: Acousticness
    type: PropertyValue
    value: 0.948
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.043
  additional property: Liveness
    type: PropertyValue
    value: 0.747
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.164
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.495
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major

From the House of the Dead, JW I/11, Act II: A... a... - Live at Grosses Festspielhaus, Salzburg , 1992
type: MusicRecording
duration: PT1M30S
duration ms: 90706
explicit: false
by artist: Leoš Janáček
by artist: Andrea Rost
by artist: Wiener Philharmoniker
by artist: Claudio Abbado
in album: Janácek: From the House of the Dead
  type: MusicAlbum
  date published: 2010-01-01
popularity: 0
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: DEF059232506
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T08:01:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1176d54ac6c04227a3c625e6136bb51395fa959eaf0d1691bb01ac1bc4f51273
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/DEF059232506
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 0x1176d54ac6c04227a3c625e6136bb51395fa959eaf0d1691bb01ac1bc4f51273. 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/DEF059232506.
  date published: 2026-07-31T08:26:41Z
audio: From the House of the Dead, JW I/11, Act II: A... a... - Live at Grosses Festspielhaus, Salzburg , 1992
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.411
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.258
  additional property: Energy
    type: PropertyValue
    value: 0.19
  additional property: Speechiness
    type: PropertyValue
    value: 0.057
  additional property: Acousticness
    type: PropertyValue
    value: 0.829
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.835
  additional property: Liveness
    type: PropertyValue
    value: 0.625
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.352
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.858
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

From the House of the Dead, JW I/11, Act II: Mil´y, mil´y, Aljejo! - Live at Grosses Festspielhaus, Salzburg , 1992
type: MusicRecording
duration: PT5M40S
duration ms: 340413
explicit: false
by artist: Leoš Janáček
by artist: Elzbieta Szmytka
by artist: Andrea Rost
by artist: Philip Langridge
by artist: Ulrich Großrubatscher
by artist: Nicolai Ghiaurov
by artist: Walter Zeh
by artist: Franz Wimmer
by artist: Richard Novak
by artist: Pavel Kamas
by artist: Wiener Philharmoniker
by artist: Claudio Abbado
by artist: Wiener Staatsopernchor
by artist: Peter Burian
in album: Janácek: From the House of the Dead
  type: MusicAlbum
  date published: 2010-01-01
popularity: 0
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: DEF059232507
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T14:34:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8b10746c97aac3fac3179b34d4b57e4f10b5bd220a75dc2f1baa11d86c9a9a2e
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/DEF059232507
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 0x8b10746c97aac3fac3179b34d4b57e4f10b5bd220a75dc2f1baa11d86c9a9a2e. 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/DEF059232507.
  date published: 2026-07-08T03:20:19Z
audio: From the House of the Dead, JW I/11, Act II: Mil´y, mil´y, Aljejo! - Live at Grosses Festspielhaus, Salzburg , 1992
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.698
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.298
  additional property: Energy
    type: PropertyValue
    value: 0.157
  additional property: Speechiness
    type: PropertyValue
    value: 0.067
  additional property: Acousticness
    type: PropertyValue
    value: 0.942
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.074
  additional property: Liveness
    type: PropertyValue
    value: 0.696
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.1
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.444
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

From the House of the Dead, JW I/11, Act II: Skuratov. Poslali mne v Jurjea - Live at Grosses Festspielhaus, Salzburg , 1992
type: MusicRecording
duration: PT7M6S
duration ms: 426080
explicit: false
by artist: Leoš Janáček
by artist: Philip Langridge
by artist: Ulrich Großrubatscher
by artist: Heinz Zednik
by artist: Barry Mccauley
by artist: Alexander Oliver
by artist: Josef Stangl
by artist: Wiener Philharmoniker
by artist: Claudio Abbado
by artist: Wiener Staatsopernchor
by artist: Peter Burian
in album: Janácek: From the House of the Dead
  type: MusicAlbum
  date published: 2010-01-01
popularity: 0
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: DEF059232508
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T14:15:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x641e91afab6185de6d3eba8b59e1ad8c5155a04502876472d93784fd4c33dc92
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/DEF059232508
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 0x641e91afab6185de6d3eba8b59e1ad8c5155a04502876472d93784fd4c33dc92. 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/DEF059232508.
  date published: 2026-07-08T03:20:19Z
audio: From the House of the Dead, JW I/11, Act II: Skuratov. Poslali mne v Jurjea - Live at Grosses Festspielhaus, Salzburg , 1992
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.543
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.23
  additional property: Energy
    type: PropertyValue
    value: 0.078
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.915
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.732
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.223
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.686
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Janacek: Chamber & Orchestral Works
type: MusicAlbum
date published: 2004-01-01

The Many Loves of Antonín Dvořák
type: MusicAlbum
date published: 2021-09-10
track: Slavonic Dances, Series II, Op. 72: Mazur - Allegretto grazioso
  type: MusicRecording
  duration: PT6M3S
  duration ms: 363266
  explicit: false
  by artist: Antonín Dvořák
  by artist: Czech Philharmonic
  by artist: Karel Sejna
  in album: The Many Loves of Antonín Dvořák
    type: MusicAlbum
    date published: 2021-09-10
  genre: classical
  genre: late-romantic-era
  genre: czech-classical
  isrc code: CZA166002036
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-18T16:19:20+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x92c9bdd5241dc80adfe8153ae7fa134cd9b63bb5dbea58c3263a65825a589fd7
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    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/CZA166002036
  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 0x92c9bdd5241dc80adfe8153ae7fa134cd9b63bb5dbea58c3263a65825a589fd7. 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/CZA166002036.
    date published: 2026-07-02T03:30:09Z
  audio: Slavonic Dances, Series II, Op. 72: Mazur - Allegretto grazioso
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 107.023
    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: 0.16
    additional property: Energy
      type: PropertyValue
      value: 0.178
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.833
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.508
    additional property: Liveness
      type: PropertyValue
      value: 0.156
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.076
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.778
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Sonatina, Op. 100: Scherzo. Molto vivace
  type: MusicRecording
  duration: PT2M51S
  duration ms: 171506
  explicit: false
  by artist: Antonín Dvořák
  by artist: Josef Suk
  by artist: Alfréd Holeček
  in album: The Many Loves of Antonín Dvořák
    type: MusicAlbum
    date published: 2021-09-10
  genre: classical
  genre: late-romantic-era
  genre: czech-classical
  isrc code: CZA167203300
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-20T07:18:59+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4fbdb7825c0d9448a3ceeb0b067dea3e48d750f26d8383f3f4a2be4380c40bc1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    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/CZA167203300
  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 0x4fbdb7825c0d9448a3ceeb0b067dea3e48d750f26d8383f3f4a2be4380c40bc1. 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/CZA167203300.
    date published: 2026-07-02T03:30:09Z
  audio: Sonatina, Op. 100: Scherzo. Molto vivace
    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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      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.365
    additional property: Energy
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      value: 0.235
    additional property: Speechiness
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      value: 0.038
    additional property: Acousticness
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      value: 0.953
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
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      value: 0.159
    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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      value: -21.284
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Hurník: Šulamit - Novák: Passer Catulli - Eben: Loveless Songs
type: MusicAlbum
date published: 2012-11-25

Tomášek, Vranický: Missae
type: MusicAlbum
date published: 1994-01-01

Tomášek, Vranický, Koželuh: Missae
type: MusicAlbum
date published: 2024-02-16

Janáček Essentials
type: MusicAlbum
date published: 2024-07-03

Janáček: Male Choruses
type: MusicAlbum
date published: 1978

Smetana: The Bartered Bride
type: MusicAlbum
date published: 2003-01-13
track: The Bartered Bride, JB 1:100: Overture
  type: MusicRecording
  duration: PT6M33S
  duration ms: 393853
  explicit: false
  by artist: Bedřich Smetana
  by artist: Czech Philharmonic
  by artist: Zdeněk Košler
  in album: Smetana: The Bartered Bride
    type: MusicAlbum
    date published: 2003-01-13
  popularity: 4
  genre: classical
  genre: late-romantic-era
  genre: czech-classical
  genre: early-modern-classical
  isrc code: CZA168103092
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T02:33:44+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xce7c37d669e005d4606c0d8215e75c51bfd60ddc1d7d7c26dce79f80b8c5f80d
  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/CZA168103092
  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 0xce7c37d669e005d4606c0d8215e75c51bfd60ddc1d7d7c26dce79f80b8c5f80d. 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/CZA168103092.
    date published: 2026-07-08T03:20:19Z
  audio: The Bartered Bride, JB 1:100: Overture
    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: 0.31
    additional property: Energy
      type: PropertyValue
      value: 0.302
    additional property: Speechiness
      type: PropertyValue
      value: 0.052
    additional property: Acousticness
      type: PropertyValue
      value: 0.903
    additional property: Instrumentalness
      type: PropertyValue
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    additional property: Liveness
      type: PropertyValue
      value: 0.286
    additional property: Valence (Positivity)
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      value: 0.183
    additional property: Loudness (dB)
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      value: -23.329
    additional property: Key Name
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    additional property: Mode Name
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track: The Bartered Bride, JB 1:100, Act I, Scene 1: Let Us Rejoice, Let´s Be Merry
  type: MusicRecording
  duration: PT8M7S
  duration ms: 487440
  explicit: false
  by artist: Bedřich Smetana
  by artist: Czech Philharmonic
  by artist: Prague Philharmonic Choir
  by artist: Zdeněk Košler
  by artist: Josef Veselka
  in album: Smetana: The Bartered Bride
    type: MusicAlbum
    date published: 2003-01-13
  popularity: 7
  genre: classical
  genre: late-romantic-era
  genre: czech-classical
  genre: early-modern-classical
  isrc code: CZA168104092
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
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    value: 2026-07-06T20:51:13+00:00
  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0x1a554b10eb4703b79885b88a5d6be5a63828c04edde0fd4ecb3508e5ad53ae87
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168104092
  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 0x1a554b10eb4703b79885b88a5d6be5a63828c04edde0fd4ecb3508e5ad53ae87. 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/CZA168104092.
    date published: 2026-07-08T03:20:19Z
  audio: The Bartered Bride, JB 1:100, Act I, Scene 1: Let Us Rejoice, Let´s Be Merry
    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
      type: PropertyValue
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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track: The Bartered Bride, JB 1:100, Act I, Scene 2: It Will Then Happen like I Have Been Told! (Mařenka, Krušinova dcera, Jeník, Míchův syn z prvního manželství)
  type: MusicRecording
  duration: PT1M22S
  duration ms: 82920
  explicit: false
  by artist: Bedřich Smetana
  by artist: Gabriela Beňačková
  by artist: Peter Dvorsky
  by artist: Czech Philharmonic
  by artist: Zdeněk Košler
  in album: Smetana: The Bartered Bride
    type: MusicAlbum
    date published: 2003-01-13
  popularity: 2
  genre: classical
  genre: late-romantic-era
  genre: czech-classical
  genre: early-modern-classical
  isrc code: CZA168105092
  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: The Bartered Bride, JB 1:100, Act I, Scene 2: It Will Then Happen like I Have Been Told! (Mařenka, Krušinova dcera, Jeník, Míchův syn z prvního manželství)
track: The Bartered Bride, JB 1:100, Act I, Scene 2: Should I Ever Happen to Learn Something like That about You (Mařenka, Krušinova dcera)
track: The Bartered Bride, JB 1:100, Act I, Scene 2: It´s Only True That Your past Life Seems to Be Veiled in a Sort of Mystery (Mařenka, Krušinova dcera, Jeník, Míchův syn z prvního manželství)
track: The Bartered Bride, JB 1:100, Act I, Scene 2: While a Mother´s Love Means Blessing, Painful Is a Stepmother´s Hate ... (Mařenka, Krušinova dcera, Jeník, Míchův syn z prvního manželství)
track: The Bartered Bride, JB 1:100, Act I, Scene 3: As I´m Saying, My Dear Fellow ... (Krušina, sedlák, Ludmila, manželka Krušiny, Kecal, vesnický dohazovač)
track: The Bartered Bride, JB 1:100, Act I, Scene 4: Here She´s Coming! (Krušina, sedlák, Ludmila, manželka Krušiny, Mařenka, Krušinova dcera, Kecal, vesnický dohazovač)
track: The Bartered Bride, JB 1:100, Act II, Scene 1: Beer´s No Doubt a Gift from Heaven... (Jeník, Míchův syn z prvního manželství, Kecal, vesnický dohazovač)
track: The Bartered Bride, JB 1:100, Act II, Scene 1: Furiant
track: The Bartered Bride, JB 1:100, Act II, Scene 3: I Know a Maiden Fair Whose Love for You Is Boundless ... (Mařenka, Krušinova dcera, Vašek, syn Míchy a Háty)
track: The Bartered Bride, JB 1:100, Act II, Scene 4: Now Then, My Dear Man ... (Jeník, Míchův syn z prvního manželství, Kecal, vesnický dohazovač)
track: The Bartered Bride, JB 1:100, Act II, Scene 6: Come Inside, People ... (Krušina, sedlák, Jeník, Míchův syn z prvního manželství, Kecal, vesnický dohazovač)
track: The Bartered Bride, JB 1:100, Act III, Scene 2: Dance of the Comedians
track: The Bartered Bride, JB 1:100, Act III, Scene 3: We Shall Make a Graceful Little Bear of You ... (Principál komediantů, Esmeralda, komediantka)
track: The Bartered Bride, JB 1:100, Act III, Scene 8: Well, so You Are Still Here, My Young Man? (Mařenka, Krušinova dcera, Jeník, Míchův syn z prvního manželství, Kecal, vesnický dohazovač)
track: The Bartered Bride, JB 1:100, Act III, Scene 9: What Have You Decided, Mařenka? (Krušina, Sedlák, Ludmila, manželka Krušiny, Mařenka, Krušinova dcera, Mícha, gruntovník, Háta, manželka Míchy,
track: The Bartered Bride, JB 1:100, Act III, Scene 10: Remember, Neighbour! (Krušina, sedlák, Ludmila, manželka Krušiny, Mařenka, Krušinova dcera, Mícha, gruntovník, Jeník, Míchův syn z prvního man

CopyrightID
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CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-31T02:23:40+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xb7fa9c2ee559ee451ace0fdb54cc370cf150cf97534eaeb3642a3ae5ff439c3d

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 960337

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960337

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168105092

OTSTimestamp
type: PropertyValue
value: 2026-07-31T02:51:48Z

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 0xb7fa9c2ee559ee451ace0fdb54cc370cf150cf97534eaeb3642a3ae5ff439c3d. 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/CZA168105092.
date published: 2026-07-31T02:51:48Z

The Bartered Bride, JB 1:100, Act I, Scene 2: It Will Then Happen like I Have Been Told! (Mařenka, Krušinova dcera, Jeník, Míchův syn z prvního manželství)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 108.872
additional property: Musical Key
  type: PropertyValue
  value: 7
additional property: Mode (Major/Minor)
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  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.455
additional property: Energy
  type: PropertyValue
  value: 0.024
additional property: Speechiness
  type: PropertyValue
  value: 0.108
additional property: Acousticness
  type: PropertyValue
  value: 0.959
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.248
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.169
additional property: Loudness (dB)
  type: PropertyValue
  value: -28.031
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Major

The Bartered Bride, JB 1:100, Act I, Scene 2: Should I Ever Happen to Learn Something like That about You (Mařenka, Krušinova dcera)
type: MusicRecording
duration: PT3M51S
duration ms: 231786
explicit: false
by artist: Bedřich Smetana
by artist: Gabriela Beňačková
by artist: Czech Philharmonic
by artist: Zdeněk Košler
in album: Smetana: The Bartered Bride
  type: MusicAlbum
  date published: 2003-01-13
popularity: 2
genre: classical
genre: late-romantic-era
genre: czech-classical
genre: early-modern-classical
isrc code: CZA168106092
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5f15c42fcede2bfd23ad62afbbae7532decc4c73a3fb34ee2b5c127f403f6fdf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960489
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168106092
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T00:40:43Z
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 0x5f15c42fcede2bfd23ad62afbbae7532decc4c73a3fb34ee2b5c127f403f6fdf. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/CZA168106092.
  date published: 2026-08-01T00:40:43Z
audio: The Bartered Bride, JB 1:100, Act I, Scene 2: Should I Ever Happen to Learn Something like That about You (Mařenka, Krušinova dcera)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.339
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.293
  additional property: Energy
    type: PropertyValue
    value: 0.032
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Mode Name
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The Bartered Bride, JB 1:100, Act I, Scene 2: It´s Only True That Your past Life Seems to Be Veiled in a Sort of Mystery (Mařenka, Krušinova dcera, Jeník, Míchův syn z prvního manželství)
type: MusicRecording
duration: PT0M46S
duration ms: 46000
explicit: false
by artist: Bedřich Smetana
by artist: Gabriela Beňačková
by artist: Peter Dvorsky
by artist: Czech Philharmonic
by artist: Zdeněk Košler
in album: Smetana: The Bartered Bride
  type: MusicAlbum
  date published: 2003-01-13
popularity: 2
genre: classical
genre: late-romantic-era
genre: czech-classical
genre: early-modern-classical
isrc code: CZA168107092
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T10:54:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xddb46a1f54c98d5099879f98e78c33641fd0b3ca7d5329e924505e4c7395529f
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/CZA168107092
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 0xddb46a1f54c98d5099879f98e78c33641fd0b3ca7d5329e924505e4c7395529f. 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/CZA168107092.
  date published: 2026-07-31T12:24:41Z
audio: The Bartered Bride, JB 1:100, Act I, Scene 2: It´s Only True That Your past Life Seems to Be Veiled in a Sort of Mystery (Mařenka, Krušinova dcera, Jeník, Míchův syn z prvního manželství)
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  additional property: Tempo (BPM)
    type: PropertyValue
    value: 167.623
  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: 0.45
  additional property: Energy
    type: PropertyValue
    value: 0.048
  additional property: Speechiness
    type: PropertyValue
    value: 0.119
  additional property: Acousticness
    type: PropertyValue
    value: 0.857
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.063
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.37
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.378
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
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The Bartered Bride, JB 1:100, Act I, Scene 2: While a Mother´s Love Means Blessing, Painful Is a Stepmother´s Hate ... (Mařenka, Krušinova dcera, Jeník, Míchův syn z prvního manželství)
type: MusicRecording
duration: PT6M5S
duration ms: 365493
explicit: false
by artist: Bedřich Smetana
by artist: Gabriela Beňačková
by artist: Peter Dvorsky
by artist: Czech Philharmonic
by artist: Zdeněk Košler
in album: Smetana: The Bartered Bride
  type: MusicAlbum
  date published: 2003-01-13
popularity: 2
genre: classical
genre: late-romantic-era
genre: czech-classical
genre: early-modern-classical
isrc code: CZA168108092
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-31T11:35:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcd34b376544bcdd0e37e3a719520bb856b7b0c9874b021f3a4790551a01b0d36
additional property: OTSHash
additional property: OTSBitcoinBlock
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  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/CZA168108092
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 0xcd34b376544bcdd0e37e3a719520bb856b7b0c9874b021f3a4790551a01b0d36. 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/CZA168108092.
  date published: 2026-07-31T12:24:41Z
audio: The Bartered Bride, JB 1:100, Act I, Scene 2: While a Mother´s Love Means Blessing, Painful Is a Stepmother´s Hate ... (Mařenka, Krušinova dcera, Jeník, Míchův syn z prvního manželství)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.179
  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: 0.168
  additional property: Energy
    type: PropertyValue
    value: 0.103
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.959
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.109
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.1
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.22
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

The Bartered Bride, JB 1:100, Act I, Scene 3: As I´m Saying, My Dear Fellow ... (Krušina, sedlák, Ludmila, manželka Krušiny, Kecal, vesnický dohazovač)
type: MusicRecording
duration: PT5M5S
duration ms: 305373
explicit: false
by artist: Bedřich Smetana
by artist: Jindřich Jindrák
by artist: Marie Vesela
by artist: Richard Novak
by artist: Czech Philharmonic
by artist: Zdeněk Košler
in album: Smetana: The Bartered Bride
  type: MusicAlbum
  date published: 2003-01-13
popularity: 5
genre: classical
genre: late-romantic-era
genre: czech-classical
genre: early-modern-classical
isrc code: CZA168109092
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T10:55:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1c87e350e351444a8b070dd90b9eb5c85da71365545aec6f81ff0e63ef3c169a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960095
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960095
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168109092
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T11:07:37Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c87e350e351444a8b070dd90b9eb5c85da71365545aec6f81ff0e63ef3c169a. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168109092.
  date published: 2026-07-29T11:07:37Z
audio: The Bartered Bride, JB 1:100, Act I, Scene 3: As I´m Saying, My Dear Fellow ... (Krušina, sedlák, Ludmila, manželka Krušiny, Kecal, vesnický dohazovač)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 149.124
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.466
  additional property: Energy
    type: PropertyValue
    value: 0.211
  additional property: Speechiness
    type: PropertyValue
    value: 0.092
  additional property: Acousticness
    type: PropertyValue
    value: 0.923
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.141
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.485
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.632
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

The Bartered Bride, JB 1:100, Act I, Scene 4: Here She´s Coming! (Krušina, sedlák, Ludmila, manželka Krušiny, Mařenka, Krušinova dcera, Kecal, vesnický dohazovač)
type: MusicRecording
duration: PT4M49S
duration ms: 289093
explicit: false
by artist: Bedřich Smetana
by artist: Jindřich Jindrák
by artist: Marie Vesela
by artist: Gabriela Beňačková
by artist: Richard Novak
by artist: Czech Philharmonic
by artist: Zdeněk Košler
in album: Smetana: The Bartered Bride
  type: MusicAlbum
  date published: 2003-01-13
popularity: 1
genre: classical
genre: late-romantic-era
genre: czech-classical
genre: early-modern-classical
isrc code: CZA168112092
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T11:05:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x65caf285728cc4c1467e864b2af42825a7636437b0d443317e457139496793a3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960403
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960403
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168112092
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:04:34Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65caf285728cc4c1467e864b2af42825a7636437b0d443317e457139496793a3. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168112092.
  date published: 2026-07-31T13:04:34Z
audio: The Bartered Bride, JB 1:100, Act I, Scene 4: Here She´s Coming! (Krušina, sedlák, Ludmila, manželka Krušiny, Mařenka, Krušinova dcera, Kecal, vesnický dohazovač)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 144.06
  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: 0.406
  additional property: Energy
    type: PropertyValue
    value: 0.103
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.962
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.207
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.313
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.645
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

The Bartered Bride, JB 1:100, Act II, Scene 1: Beer´s No Doubt a Gift from Heaven... (Jeník, Míchův syn z prvního manželství, Kecal, vesnický dohazovač)
type: MusicRecording
duration: PT5M32S
duration ms: 332946
explicit: false
by artist: Bedřich Smetana
by artist: Peter Dvorsky
by artist: Richard Novak
by artist: Czech Philharmonic
by artist: Prague Philharmonic Choir
by artist: Zdeněk Košler
by artist: Josef Veselka
in album: Smetana: The Bartered Bride
  type: MusicAlbum
  date published: 2003-01-13
popularity: 2
genre: classical
genre: late-romantic-era
genre: czech-classical
genre: early-modern-classical
isrc code: CZA168118092
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-08-01T01:57:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x86e2e64889e71b91dc032add3b1e8190d2c0d740ce401a0c0a3feb3ac4a8095e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960500
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960500
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168118092
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T03:13:03Z
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 0x86e2e64889e71b91dc032add3b1e8190d2c0d740ce401a0c0a3feb3ac4a8095e. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/CZA168118092.
  date published: 2026-08-01T03:13:03Z
audio: The Bartered Bride, JB 1:100, Act II, Scene 1: Beer´s No Doubt a Gift from Heaven... (Jeník, Míchův syn z prvního manželství, Kecal, vesnický dohazovač)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.37
  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: 0.266
  additional property: Energy
    type: PropertyValue
    value: 0.303
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.921
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.007
  additional property: Liveness
    type: PropertyValue
    value: 0.15
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.31
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.528
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

The Bartered Bride, JB 1:100, Act II, Scene 1: Furiant
type: MusicRecording
duration: PT2M12S
duration ms: 132386
explicit: false
by artist: Bedřich Smetana
by artist: Czech Philharmonic
by artist: Zdeněk Košler
in album: Smetana: The Bartered Bride
  type: MusicAlbum
  date published: 2003-01-13
popularity: 3
genre: classical
genre: late-romantic-era
genre: czech-classical
genre: early-modern-classical
isrc code: CZA168119092
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:46:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbc33e3d02fd176a85ebed867a96ad6cfc6788d88fe2780335f4c76437f6b5f1e
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/CZA168119092
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 0xbc33e3d02fd176a85ebed867a96ad6cfc6788d88fe2780335f4c76437f6b5f1e. 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/CZA168119092.
  date published: 2026-07-08T03:20:19Z
audio: The Bartered Bride, JB 1:100, Act II, Scene 1: Furiant
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.336
  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: 0.402
  additional property: Energy
    type: PropertyValue
    value: 0.188
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.82
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.838
  additional property: Liveness
    type: PropertyValue
    value: 0.224
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.472
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.707
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

The Bartered Bride, JB 1:100, Act II, Scene 3: I Know a Maiden Fair Whose Love for You Is Boundless ... (Mařenka, Krušinova dcera, Vašek, syn Míchy a Háty)
type: MusicRecording
duration: PT5M56S
duration ms: 356493
explicit: false
by artist: Bedřich Smetana
by artist: Gabriela Beňačková
by artist: Miroslav Kopp
by artist: Czech Philharmonic
by artist: Zdeněk Košler
in album: Smetana: The Bartered Bride
  type: MusicAlbum
  date published: 2003-01-13
popularity: 1
genre: classical
genre: late-romantic-era
genre: czech-classical
genre: early-modern-classical
isrc code: CZA168122092
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T14:07:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd339db820b12fee7335348e01b9317e46e1ddc1d6bdac8d1a033bba0da3a8902
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960418
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960418
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168122092
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:20:15Z
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: The Bartered Bride, JB 1:100, Act II, Scene 3: I Know a Maiden Fair Whose Love for You Is Boundless ... (Mařenka, Krušinova dcera, Vašek, syn Míchy a Háty)
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The Bartered Bride, JB 1:100, Act II, Scene 4: Now Then, My Dear Man ... (Jeník, Míchův syn z prvního manželství, Kecal, vesnický dohazovač)
type: MusicRecording
duration: PT7M51S
duration ms: 471826
explicit: false
by artist: Bedřich Smetana
by artist: Peter Dvorsky
by artist: Richard Novak
by artist: Czech Philharmonic
by artist: Zdeněk Košler
in album: Smetana: The Bartered Bride
  type: MusicAlbum
  date published: 2003-01-13
popularity: 2
genre: classical
genre: late-romantic-era
genre: czech-classical
genre: early-modern-classical
isrc code: CZA168124092
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168124092
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T04:14:58Z
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 0xfd0b565345e1e4126865139fc002d325c48a570230664dd4238a2525e12eedfb. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168124092.
  date published: 2026-07-31T04:14:58Z
audio: The Bartered Bride, JB 1:100, Act II, Scene 4: Now Then, My Dear Man ... (Jeník, Míchův syn z prvního manželství, Kecal, vesnický dohazovač)
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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The Bartered Bride, JB 1:100, Act II, Scene 6: Come Inside, People ... (Krušina, sedlák, Jeník, Míchův syn z prvního manželství, Kecal, vesnický dohazovač)
type: MusicRecording
duration: PT4M8S
duration ms: 248733
explicit: false
by artist: Bedřich Smetana
by artist: Jindřich Jindrák
by artist: Peter Dvorsky
by artist: Richard Novak
by artist: Czech Philharmonic
by artist: Prague Philharmonic Choir
by artist: Zdeněk Košler
by artist: Josef Veselka
in album: Smetana: The Bartered Bride
  type: MusicAlbum
  date published: 2003-01-13
popularity: 1
genre: classical
genre: late-romantic-era
genre: czech-classical
genre: early-modern-classical
isrc code: CZA168127092
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
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960418
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168127092
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:20:15Z
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 0xc8fb16d2ad31af498894acced1092511f05e3db457ffb42e5c06a18c3fab70b4. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168127092.
  date published: 2026-07-31T15:20:15Z
audio: The Bartered Bride, JB 1:100, Act II, Scene 6: Come Inside, People ... (Krušina, sedlák, Jeník, Míchův syn z prvního manželství, Kecal, vesnický dohazovač)
  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: Liveness
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  additional property: Valence (Positivity)
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  additional property: Key Name
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The Bartered Bride, JB 1:100, Act III, Scene 2: Dance of the Comedians
type: MusicRecording
duration: PT5M55S
duration ms: 355360
explicit: false
by artist: Bedřich Smetana
by artist: Czech Philharmonic
by artist: Zdeněk Košler
in album: Smetana: The Bartered Bride
  type: MusicAlbum
  date published: 2003-01-13
popularity: 4
genre: classical
genre: late-romantic-era
genre: czech-classical
genre: early-modern-classical
isrc code: CZA168135092
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x372db8edb4890d26fb19a0b6ec2c5cb2f420207fe73a259c94214e569e7e47f2
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960321
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168135092
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T22:27:30Z
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 0x372db8edb4890d26fb19a0b6ec2c5cb2f420207fe73a259c94214e569e7e47f2. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/CZA168135092.
  date published: 2026-07-30T22:27:30Z
audio: The Bartered Bride, JB 1:100, Act III, Scene 2: Dance of the Comedians
  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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    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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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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The Bartered Bride, JB 1:100, Act III, Scene 3: We Shall Make a Graceful Little Bear of You ... (Principál komediantů, Esmeralda, komediantka)
type: MusicRecording
duration: PT1M35S
duration ms: 95773
explicit: false
by artist: Bedřich Smetana
by artist: Alfréd Hampel
by artist: Jana Jonasova
by artist: Czech Philharmonic
by artist: Zdeněk Košler
in album: Smetana: The Bartered Bride
  type: MusicAlbum
  date published: 2003-01-13
popularity: 4
genre: classical
genre: late-romantic-era
genre: czech-classical
genre: early-modern-classical
isrc code: CZA168137092
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:24:23+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x6f52e1d6ff6a7bc12a5b843a7af34ebb9c393e9a9dc185bd96925d90ca84d484
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/CZA168137092
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 0x6f52e1d6ff6a7bc12a5b843a7af34ebb9c393e9a9dc185bd96925d90ca84d484. 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/CZA168137092.
  date published: 2026-07-08T03:20:19Z
audio: The Bartered Bride, JB 1:100, Act III, Scene 3: We Shall Make a Graceful Little Bear of You ... (Principál komediantů, Esmeralda, komediantka)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.741
  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: 0.553
  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
    value: 0.445
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.489
  additional property: Key Name
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    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

The Bartered Bride, JB 1:100, Act III, Scene 8: Well, so You Are Still Here, My Young Man? (Mařenka, Krušinova dcera, Jeník, Míchův syn z prvního manželství, Kecal, vesnický dohazovač)
type: MusicRecording
duration: PT1M7S
duration ms: 67586
explicit: false
by artist: Bedřich Smetana
by artist: Gabriela Beňačková
by artist: Peter Dvorsky
by artist: Richard Novak
by artist: Czech Philharmonic
by artist: Zdeněk Košler
in album: Smetana: The Bartered Bride
  type: MusicAlbum
  date published: 2003-01-13
popularity: 1
genre: classical
genre: late-romantic-era
genre: czech-classical
genre: early-modern-classical
isrc code: CZA168145092
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T23:36:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x54a5ccdf85fddee948223efd8416b133a3060c7e65c0d7ef8780a96b5e4054e3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960481
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960481
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168145092
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T23:51:35Z
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 0x54a5ccdf85fddee948223efd8416b133a3060c7e65c0d7ef8780a96b5e4054e3. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/CZA168145092.
  date published: 2026-07-31T23:51:35Z
audio: The Bartered Bride, JB 1:100, Act III, Scene 8: Well, so You Are Still Here, My Young Man? (Mařenka, Krušinova dcera, Jeník, Míchův syn z prvního manželství, Kecal, vesnický dohazovač)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 164.84
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.476
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.473
  additional property: Acousticness
    type: PropertyValue
    value: 0.942
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  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: Key Name
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The Bartered Bride, JB 1:100, Act III, Scene 9: What Have You Decided, Mařenka? (Krušina, Sedlák, Ludmila, manželka Krušiny, Mařenka, Krušinova dcera, Mícha, gruntovník, Háta, manželka Míchy,
type: MusicRecording
duration: PT4M28S
duration ms: 268346
explicit: false
by artist: Bedřich Smetana
by artist: Jindřich Jindrák
by artist: Marie Vesela
by artist: Gabriela Beňačková
by artist: Jaroslav Horáček
by artist: Marie Mrazova
by artist: Peter Dvorsky
by artist: Richard Novak
by artist: Czech Philharmonic
by artist: Prague Philharmonic Choir
by artist: Zdeněk Košler
by artist: Josef Veselka
in album: Smetana: The Bartered Bride
  type: MusicAlbum
  date published: 2003-01-13
popularity: 1
genre: classical
genre: late-romantic-era
genre: czech-classical
genre: early-modern-classical
isrc code: CZA168147092
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T10:37:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x583f1a4eb50b06e8f878d21f7f9605aab72a4d0ac653305685986c75b96823e4
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/CZA168147092
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
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  date published: 2026-07-30T15:42:38Z
audio: The Bartered Bride, JB 1:100, Act III, Scene 10: Remember, Neighbour! (Krušina, sedlák, Ludmila, manželka Krušiny, Mařenka, Krušinova dcera, Mícha, gruntovník, Jeník, Míchův syn z prvního man
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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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    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 0xb6808cdef764ee07063f9b0a9b97606f84790b5b2f8da6cd26bddc14c141e91c. 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/CZA168101393.
    date published: 2026-07-31T16:07:24Z
  audio: The Greek Passion, H. 372, Act I: Christ Is Risen. Joy! (Kněz Grigoris, Kostandis, majitel kovárny, Janakos, podomní obchodník, Panait / Jidáš, Manolios, ovčák)
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    additional property: Mode (Major/Minor)
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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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Dvořák: Kate and the Devil
type: MusicAlbum
date published: 1993-01-01

Janácek: Operas
type: MusicAlbum
date published: 2005-01-01

Verdi, Leoncavallo, Mascagni, Giordano: Scenes from Italian Operas
type: MusicAlbum
date published: 2019-12-20
track: I pagliacci, Act I: "Vesti la giubba" (Canio)
  type: MusicRecording
  duration: PT3M23S
  duration ms: 203402
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  by artist: Ruggero Leoncavallo
  by artist: Gaetano Bardini
  by artist: Prague Smetana Theatre Orchestra
  by artist: Jan Štych
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    type: MusicAlbum
    date published: 2019-12-20
  genre: italian-opera
  genre: italian-romanticism
  genre: opera
  isrc code: CZA167202584
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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
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167202584
  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 0x24445ca3b1afb9f4eefbaf6fcc957348dc39066016b125e196265da929123fcc. 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/CZA167202584.
    date published: 2026-07-30T07:28:30Z
  audio: I pagliacci, Act I: "Vesti la giubba" (Canio)
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    additional property: Danceability
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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Life with Czech Music - Janáček, Martinů
type: MusicAlbum
date published: 2010-10-15

Janáček: Glagolitic Mass
type: MusicAlbum
date published: 1987-01-01
track: Glagolitic Mass: I. Introduction
  type: MusicRecording
  duration: PT2M58S
  duration ms: 178666
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  by artist: Leoš Janáček
  by artist: Czech Philharmonic
  by artist: Sir Charles Mackerras
  in album: Janáček: Glagolitic Mass
    type: MusicAlbum
    date published: 1987-01-01
  genre: classical
  genre: czech-classical
  genre: early-modern-classical
  genre: contemporary-classical
  genre: post-romantic-era
  isrc code: CZA168501059
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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/960236
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168501059
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T09:37:10Z
  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 0x9c6ddda8911abe4210cd402177f213a2f2068ce44b0bd7a24a6288f24d161b8b. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/CZA168501059.
    date published: 2026-07-30T09:37:10Z
  audio: Glagolitic Mass: I. Introduction
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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: 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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      value: -22.067
    additional property: Key Name
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track: Glagolitic Mass: II. Kyrie eleison
  type: MusicRecording
  duration: PT3M20S
  duration ms: 200400
  explicit: false
  by artist: Leoš Janáček
  by artist: Elisabeth Söderström
  by artist: Czech Philharmonic
  by artist: Prague Philharmonic Choir
  by artist: Sir Charles Mackerras
  by artist: Lubomir Matl
  in album: Janáček: Glagolitic Mass
    type: MusicAlbum
    date published: 1987-01-01
  genre: classical
  genre: czech-classical
  genre: early-modern-classical
  genre: contemporary-classical
  genre: post-romantic-era
  isrc code: CZA168502059
  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: OTSBitcoinBlock
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  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/CZA168502059
  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 0xd36735d35dff82de425367bc2aba9b11acc2ed45e747ea8330a5cceb092b3a83. 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/CZA168502059.
    date published: 2026-07-07T18:39:05Z
  audio: Glagolitic Mass: II. Kyrie eleison
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    additional property: Mode (Major/Minor)
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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: Valence (Positivity)
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track: Glagolitic Mass: III. Gloria
  type: MusicRecording
  duration: PT6M32S
  duration ms: 392160
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  by artist: Leoš Janáček
  by artist: Elisabeth Söderström
  by artist: František Livora
  by artist: Czech Philharmonic
  by artist: Prague Philharmonic Choir
  by artist: Sir Charles Mackerras
  by artist: Lubomir Matl
  by artist: Jan Hora
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  genre: classical
  genre: czech-classical
  genre: early-modern-classical
  genre: contemporary-classical
  genre: post-romantic-era
  isrc code: CZA168503059
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Glagolitic Mass: III. Gloria
track: Glagolitic Mass: IV. Credo
track: Glagolitic Mass: V. Sanctus
track: Glagolitic Mass: VI. Agnus Dei
track: Glagolitic Mass: VII. Postludium
track: Glagolitic Mass: VIII. Intrada

Jan Hora
type: MusicGroup

Janáček: Glagolitic Mass
type: MusicAlbum
date published: 1987-01-01

CopyrightID
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CopyrightStatus
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CopyrightRegisteredAt
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CopyrightChainExplorerURL
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OTSHash
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OTSBitcoinBlock
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value: 960254

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960254

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168503059

OTSTimestamp
type: PropertyValue
value: 2026-07-30T12:06:10Z

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 0xdf90b6b28fc7b96c421fb9ba30d0695b00e502702360d470d7d6ec81dd7a2f22. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/CZA168503059.
date published: 2026-07-30T12:06:10Z

Glagolitic Mass: III. Gloria
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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: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Mode Name
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Glagolitic Mass: IV. Credo
type: MusicRecording
duration: PT11M36S
duration ms: 696240
explicit: false
by artist: Leoš Janáček
by artist: František Livora
by artist: Richard Novak
by artist: Czech Philharmonic
by artist: Prague Philharmonic Choir
by artist: Sir Charles Mackerras
by artist: Lubomir Matl
by artist: Jan Hora
in album: Janáček: Glagolitic Mass
  type: MusicAlbum
  date published: 1987-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: CZA168504059
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
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168504059
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 0xf8bc2c94bca06280689dea5c02c169330c3ad07fca7678fe545a6cc46d478cc8. 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/CZA168504059.
  date published: 2026-07-08T03:20:19Z
audio: Glagolitic Mass: IV. Credo
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  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
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Glagolitic Mass: V. Sanctus
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duration: PT6M33S
duration ms: 393466
explicit: false
by artist: Leoš Janáček
by artist: Elisabeth Söderström
by artist: Drahomíra Drobková
by artist: František Livora
by artist: Richard Novak
by artist: Czech Philharmonic
by artist: Prague Philharmonic Choir
by artist: Sir Charles Mackerras
by artist: Lubomir Matl
in album: Janáček: Glagolitic Mass
  type: MusicAlbum
  date published: 1987-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: CZA168505059
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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: 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
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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: 2026-07-31T02:19:15Z
audio: Glagolitic Mass: V. Sanctus
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Glagolitic Mass: VI. Agnus Dei
type: MusicRecording
duration: PT4M56S
duration ms: 296493
explicit: false
by artist: Leoš Janáček
by artist: Elisabeth Söderström
by artist: Drahomíra Drobková
by artist: Richard Novak
by artist: Czech Philharmonic
by artist: Prague Philharmonic Choir
by artist: Sir Charles Mackerras
by artist: Lubomir Matl
in album: Janáček: Glagolitic Mass
  type: MusicAlbum
  date published: 1987-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: CZA168506059
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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
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960273
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168506059
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: 2026-07-30T15:42:38Z
audio: Glagolitic Mass: VI. Agnus Dei
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Glagolitic Mass: VII. Postludium
type: MusicRecording
duration: PT2M35S
duration ms: 155866
explicit: false
by artist: Leoš Janáček
by artist: Jan Hora
in album: Janáček: Glagolitic Mass
  type: MusicAlbum
  date published: 1987-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: CZA168507059
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
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960404
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168507059
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:06:57Z
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf96a0c852a7a19a2fc49546ea8f710d0aacf47f483c2e1bdc8ec88c8c25115a5. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/CZA168507059.
  date published: 2026-07-31T13:06:57Z
audio: Glagolitic Mass: VII. Postludium
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Glagolitic Mass: VIII. Intrada
type: MusicRecording
duration: PT1M44S
duration ms: 104440
explicit: false
by artist: Leoš Janáček
by artist: Czech Philharmonic
by artist: Sir Charles Mackerras
in album: Janáček: Glagolitic Mass
  type: MusicAlbum
  date published: 1987-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: CZA168508059
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
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960334
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168508059
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T02:19:15Z
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 0xf4094f396d57e2fa4e7827d73b1156bc1e5c560de7f14ee6b71f9e4e8e09063a. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168508059.
  date published: 2026-07-31T02:19:15Z
audio: Glagolitic Mass: VIII. Intrada
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A Classical Encyclopedia: J as in Janáček
type: MusicAlbum
date published: 2012-04-01

Magdalena Blahušiaková, Jaroslav Souček (Smetana, Janáček,Verdi, Foerster, Rossini)
type: MusicAlbum
date published: 2020-03-27

Janácek: The Cunning Little Vixen
type: MusicAlbum
date published: 1982-01-01
track: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 3: Dez sem vandroval, mozeka hrála
  type: MusicRecording
  duration: PT7M1S
  duration ms: 421093
  explicit: false
  by artist: Leoš Janáček
  by artist: Vaclav Zitek
  by artist: Dalibor Jedlicka
  by artist: Wiener Philharmoniker
  by artist: Sir Charles Mackerras
  in album: Janácek: The Cunning Little Vixen
    type: MusicAlbum
    date published: 1982-01-01
  genre: classical
  genre: czech-classical
  genre: early-modern-classical
  genre: contemporary-classical
  genre: post-romantic-era
  isrc code: GBF078140221
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T21:47:20+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6022469a6aeafced468fdecb2b3ceda4cf590d9f654e0f3f9b76af129e0d2f2d
  additional property: OTSHash
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    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/GBF078140221
  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 0x6022469a6aeafced468fdecb2b3ceda4cf590d9f654e0f3f9b76af129e0d2f2d. 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/GBF078140221.
    date published: 2026-07-08T03:20:19Z
  audio: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 3: Dez sem vandroval, mozeka hrála
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    additional property: Tempo (BPM)
      type: PropertyValue
      value: 142.958
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
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      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
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      value: 0.344
    additional property: Energy
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
      type: PropertyValue
      value: 0.327
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    additional property: Loudness (dB)
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      value: -21.707
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      value: Ab
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      value: Minor
track: The Cunning Little Vixen (Prihody Lisky Bystrousky): Prelude
  type: MusicRecording
  duration: PT3M18S
  duration ms: 198626
  explicit: false
  by artist: Leoš Janáček
  by artist: Wiener Philharmoniker
  by artist: Sir Charles Mackerras
  in album: Janácek: The Cunning Little Vixen
    type: MusicAlbum
    date published: 1982-01-01
  genre: classical
  genre: czech-classical
  genre: early-modern-classical
  genre: contemporary-classical
  genre: post-romantic-era
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    value: registered
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078140201
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-22T05:29:55Z
  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: 2026-07-22T05:29:55Z
  audio: The Cunning Little Vixen (Prihody Lisky Bystrousky): Prelude
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    additional property: Danceability
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    additional property: Liveness
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    additional property: Loudness (dB)
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track: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 3: Bezi liska Táboru
  type: MusicRecording
  duration: PT1M49S
  duration ms: 109040
  explicit: false
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  by artist: Lucia Popp
  by artist: Eva Randová
  by artist: Wiener Philharmoniker
  by artist: Sir Charles Mackerras
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    type: MusicAlbum
    date published: 1982-01-01
  genre: classical
  genre: czech-classical
  genre: early-modern-classical
  genre: contemporary-classical
  genre: post-romantic-era
  isrc code: GBF078140222
  additional property: CopyrightID
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 3: Bezi liska Táboru
track: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: Dostaneme bourku
track: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 3: Kolik jsme uz meli deti?
track: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: Kmotrenka zakoncertovala si také?
track: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 3: Nusu dule!
track: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: Mami!
track: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 3: A kde otec Pásak?
track: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: Pantomime
track: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 3: To uz ne!
track: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: Change of Scene (Promena)
track: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 3: Nerikal jsem to?
track: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: To cucis Lapáku!?
track: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 3: Hoj! Ale neni tu Bystrousky!
track: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: Ze nevis, co mamé?
track: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 3: Totok nejsem já
track: The Cunning Little Vixen - Orchestral Suite: 1. Andante
track: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: Melas delat podlica mné!
track: The Cunning Little Vixen - Orchestral Suite: 2. Andante
track: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: Hled'te sestry jakého máte vudce!
track: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 2: Ach!
track: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 2: Ano, ve Strani bude daleko lépe
track: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 2: Domu? Pro ten snupec tvého spani
track: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 2: Bud'to mám teziste pohyblivé
track: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 2: Pomni, abys byl dobrym muzém!
track: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 2: Bozinku, ten je hezké!
track: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 2: Kradla jsem!
track: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 2: Zlatohrbitek, lisák a krouzkovymi pesiky
track: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 2: Kdbyste vedeli, co já videla

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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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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

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date published: 2026-07-30T03:35:13Z

The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 3: Bezi liska Táboru
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The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: Dostaneme bourku
type: MusicRecording
duration: PT1M22S
duration ms: 82773
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by artist: Leoš Janáček
by artist: Dalibor Jedlicka
by artist: Wiener Philharmoniker
by artist: Sir Charles Mackerras
in album: Janácek: The Cunning Little Vixen
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  date published: 1982-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-07-06T06:56:49Z
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: 2026-07-06T06:56:49Z
audio: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: Dostaneme bourku
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The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 3: Kolik jsme uz meli deti?
type: MusicRecording
duration: PT2M24S
duration ms: 144960
explicit: false
by artist: Leoš Janáček
by artist: Eva Randová
by artist: Lucia Popp
by artist: Vaclav Zitek
by artist: Wiener Philharmoniker
by artist: Sir Charles Mackerras
in album: Janácek: The Cunning Little Vixen
  type: MusicAlbum
  date published: 1982-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078140223
additional property: OTSTimestamp
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  value: 2026-07-30T00:11:40Z
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: 2026-07-30T00:11:40Z
audio: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 3: Kolik jsme uz meli deti?
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The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: Kmotrenka zakoncertovala si také?
type: MusicRecording
duration: PT1M44S
duration ms: 104960
explicit: false
by artist: Leoš Janáček
by artist: Miriam Ondraskova
by artist: Peter Saray
by artist: Vladimir Krejcik
by artist: Wiener Philharmoniker
by artist: Sir Charles Mackerras
in album: Janácek: The Cunning Little Vixen
  type: MusicAlbum
  date published: 1982-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: GBF078140203
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
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957050
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078140203
additional property: OTSTimestamp
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  value: 2026-07-07T14:41:13Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T14:41:13Z
audio: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: Kmotrenka zakoncertovala si také?
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The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 3: Nusu dule!
type: MusicRecording
duration: PT3M7S
duration ms: 187466
explicit: false
by artist: Leoš Janáček
by artist: Vaclav Zitek
by artist: Lucia Popp
by artist: Wiener Philharmoniker
by artist: Sir Charles Mackerras
in album: Janácek: The Cunning Little Vixen
  type: MusicAlbum
  date published: 1982-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
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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: 2026-07-08T03:20:19Z
audio: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 3: Nusu dule!
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The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: Mami!
type: MusicRecording
duration: PT1M44S
duration ms: 104306
explicit: false
by artist: Leoš Janáček
by artist: Lucia Popp
by artist: Dalibor Jedlicka
by artist: Wiener Philharmoniker
by artist: Sir Charles Mackerras
in album: Janácek: The Cunning Little Vixen
  type: MusicAlbum
  date published: 1982-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: GBF078140204
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
  value: https://blockstream.info/api/block-height/957073
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078140204
additional property: OTSTimestamp
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  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
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  date published: 2026-07-07T18:39:05Z
audio: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: Mami!
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The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 3: A kde otec Pásak?
type: MusicRecording
duration: PT3M38S
duration ms: 218706
explicit: false
by artist: Leoš Janáček
by artist: Dalibor Jedlicka
by artist: Eva Zigmundova
by artist: Wiener Philharmoniker
by artist: Sir Charles Mackerras
in album: Janácek: The Cunning Little Vixen
  type: MusicAlbum
  date published: 1982-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: GBF078140225
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3dd4f4d66ae2e7b5f6448f3bc92728449665db71a5893b7c09f7ae5ab1e8b9f8
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/GBF078140225
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 0x3dd4f4d66ae2e7b5f6448f3bc92728449665db71a5893b7c09f7ae5ab1e8b9f8. 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/GBF078140225.
  date published: 2026-07-31T02:51:48Z
audio: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 3: A kde otec Pásak?
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.798
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.199
  additional property: Energy
    type: PropertyValue
    value: 0.08
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.958
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.098
  additional property: Liveness
    type: PropertyValue
    value: 0.681
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.054
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.221
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: Pantomime
type: MusicRecording
duration: PT3M5S
duration ms: 185893
explicit: false
by artist: Leoš Janáček
by artist: Dalibor Jedlicka
by artist: Wiener Philharmoniker
by artist: Sir Charles Mackerras
in album: Janácek: The Cunning Little Vixen
  type: MusicAlbum
  date published: 1982-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: GBF078140205
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T17:04:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe1869083ae9835c989cd97c55e5dd146ca542b554bc017e460439a5729058709
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960138
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960138
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078140205
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T19:35:34Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1869083ae9835c989cd97c55e5dd146ca542b554bc017e460439a5729058709. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078140205.
  date published: 2026-07-29T19:35:34Z
audio: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: Pantomime
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 144.222
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.222
  additional property: Energy
    type: PropertyValue
    value: 0.025
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.95
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.034
  additional property: Liveness
    type: PropertyValue
    value: 0.135
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.042
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.424
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 3: To uz ne!
type: MusicRecording
duration: PT4M59S
duration ms: 299160
explicit: false
by artist: Leoš Janáček
by artist: Vladimir Krejcik
by artist: Eva Zigmundova
by artist: Dalibor Jedlicka
by artist: Wiener Philharmoniker
by artist: Sir Charles Mackerras
in album: Janácek: The Cunning Little Vixen
  type: MusicAlbum
  date published: 1982-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: GBF078140226
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:16:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x92e2d4fa8d8d5edaec44a6e5970ecbded0bfa62e953519ec857d7e4051110bda
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/GBF078140226
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 0x92e2d4fa8d8d5edaec44a6e5970ecbded0bfa62e953519ec857d7e4051110bda. 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/GBF078140226.
  date published: 2026-07-08T03:20:19Z
audio: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 3: To uz ne!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.512
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.284
  additional property: Energy
    type: PropertyValue
    value: 0.053
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.98
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.229
  additional property: Liveness
    type: PropertyValue
    value: 0.314
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.072
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.756
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: Change of Scene (Promena)
type: MusicRecording
duration: PT2M2S
duration ms: 122106
explicit: false
by artist: Leoš Janáček
by artist: Wiener Philharmoniker
by artist: Sir Charles Mackerras
in album: Janácek: The Cunning Little Vixen
  type: MusicAlbum
  date published: 1982-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: GBF078140206
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T11:09:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc11ef92e1744f780a6a098438124db87e61262cd706263cedb36a3f518e78320
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957064
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957064
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078140206
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T16:43:08Z
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 0xc11ef92e1744f780a6a098438124db87e61262cd706263cedb36a3f518e78320. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/GBF078140206.
  date published: 2026-07-07T16:43:08Z
audio: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: Change of Scene (Promena)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 173.227
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.267
  additional property: Energy
    type: PropertyValue
    value: 0.132
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.96
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.774
  additional property: Liveness
    type: PropertyValue
    value: 0.202
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.115
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.999
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Minor

The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 3: Nerikal jsem to?
type: MusicRecording
duration: PT4M50S
duration ms: 290373
explicit: false
by artist: Leoš Janáček
by artist: Dalibor Jedlicka
by artist: Wiener Philharmoniker
by artist: Sir Charles Mackerras
in album: Janácek: The Cunning Little Vixen
  type: MusicAlbum
  date published: 1982-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: GBF078140227
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T01:31:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7c5d3f808764a0a7f94bab78494a20445ee77c31fda5444e64fa3552aa35dbfc
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/GBF078140227
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 0x7c5d3f808764a0a7f94bab78494a20445ee77c31fda5444e64fa3552aa35dbfc. 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/GBF078140227.
  date published: 2026-07-08T03:20:19Z
audio: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 3: Nerikal jsem to?
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 123.809
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.24
  additional property: Energy
    type: PropertyValue
    value: 0.123
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.958
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.011
  additional property: Liveness
    type: PropertyValue
    value: 0.335
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.123
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.912
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Minor

The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: To cucis Lapáku!?
type: MusicRecording
duration: PT2M25S
duration ms: 145933
explicit: false
by artist: Leoš Janáček
by artist: Dalibor Jedlicka
by artist: Eva Zigmundova
by artist: Lucia Popp
by artist: Libuse Marova
by artist: Wiener Philharmoniker
by artist: Sir Charles Mackerras
in album: Janácek: The Cunning Little Vixen
  type: MusicAlbum
  date published: 1982-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: GBF078140207
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T19:19:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfe3a26b00007c22780dbce6c9102671fa301c47098fe45c349d8c21150596854
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960138
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960138
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078140207
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T19:35:34Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3a26b00007c22780dbce6c9102671fa301c47098fe45c349d8c21150596854. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078140207.
  date published: 2026-07-29T19:35:34Z
audio: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: To cucis Lapáku!?
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.206
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.306
  additional property: Energy
    type: PropertyValue
    value: 0.086
  additional property: Speechiness
    type: PropertyValue
    value: 0.08
  additional property: Acousticness
    type: PropertyValue
    value: 0.97
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.662
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.173
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.393
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 3: Hoj! Ale neni tu Bystrousky!
type: MusicRecording
duration: PT0M58S
duration ms: 58466
explicit: false
by artist: Leoš Janáček
by artist: Dalibor Jedlicka
by artist: Wiener Philharmoniker
by artist: Sir Charles Mackerras
in album: Janácek: The Cunning Little Vixen
  type: MusicAlbum
  date published: 1982-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: GBF078140228
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T20:52:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xebaf6e6bb98b8915e73c91e2a3c68efa272da2384cfc591e1437779ca60114ff
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960314
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960314
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078140228
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T21:00:46Z
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 0xebaf6e6bb98b8915e73c91e2a3c68efa272da2384cfc591e1437779ca60114ff. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/GBF078140228.
  date published: 2026-07-30T21:00:46Z
audio: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 3: Hoj! Ale neni tu Bystrousky!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 154.413
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.292
  additional property: Energy
    type: PropertyValue
    value: 0.207
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.931
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.038
  additional property: Liveness
    type: PropertyValue
    value: 0.656
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.354
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.126
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: Ze nevis, co mamé?
type: MusicRecording
duration: PT1M6S
duration ms: 66066
explicit: false
by artist: Leoš Janáček
by artist: Zuzana Hudecova
by artist: Eva Hribkova
by artist: Lucia Popp
by artist: Eva Zigmundova
by artist: Wiener Philharmoniker
by artist: Sir Charles Mackerras
in album: Janácek: The Cunning Little Vixen
  type: MusicAlbum
  date published: 1982-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: GBF078140208
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T23:48:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0ce309ce4991cdef1f8c26b8d29b0d279a8e191bb61fa75747082ae518a78ba8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960170
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960170
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078140208
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T23:52:38Z
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 0x0ce309ce4991cdef1f8c26b8d29b0d279a8e191bb61fa75747082ae518a78ba8. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/GBF078140208.
  date published: 2026-07-29T23:52:38Z
audio: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: Ze nevis, co mamé?
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 143.578
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.435
  additional property: Energy
    type: PropertyValue
    value: 0.17
  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.94
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.006
  additional property: Liveness
    type: PropertyValue
    value: 0.529
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.397
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.948
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 3: Totok nejsem já
type: MusicRecording
duration: PT1M12S
duration ms: 72226
explicit: false
by artist: Leoš Janáček
by artist: Peter Saray
by artist: Wiener Philharmoniker
by artist: Sir Charles Mackerras
in album: Janácek: The Cunning Little Vixen
  type: MusicAlbum
  date published: 1982-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: GBF078140229
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T07:41:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x510787ea6a4792a4ec840468858b6476946baaee68989ae3fa7d787b3e9629cd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960222
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960222
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078140229
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T07:48:45Z
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 0x510787ea6a4792a4ec840468858b6476946baaee68989ae3fa7d787b3e9629cd. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078140229.
  date published: 2026-07-30T07:48:45Z
audio: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 3: Totok nejsem já
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 79.558
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.351
  additional property: Energy
    type: PropertyValue
    value: 0.355
  additional property: Speechiness
    type: PropertyValue
    value: 0.028
  additional property: Acousticness
    type: PropertyValue
    value: 0.817
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.068
  additional property: Liveness
    type: PropertyValue
    value: 0.215
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.167
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.733
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: Pantomime
type: MusicRecording
duration: PT3M33S
duration ms: 213626
explicit: false
by artist: Leoš Janáček
by artist: Lucia Popp
by artist: Wiener Philharmoniker
by artist: Sir Charles Mackerras
in album: Janácek: The Cunning Little Vixen
  type: MusicAlbum
  date published: 1982-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: GBF078140209
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T20:08:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x68ccc74c3cecd7c5c7074d2fe75624e9132dd2eb9ea3a628410d116a8b356b39
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960144
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960144
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078140209
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T21:09:47Z
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 0x68ccc74c3cecd7c5c7074d2fe75624e9132dd2eb9ea3a628410d116a8b356b39. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078140209.
  date published: 2026-07-29T21:09:47Z
audio: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: Pantomime
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 163.306
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.09
  additional property: Energy
    type: PropertyValue
    value: 0.094
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.935
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.856
  additional property: Liveness
    type: PropertyValue
    value: 0.13
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.037
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.787
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

The Cunning Little Vixen - Orchestral Suite: 1. Andante
type: MusicRecording
duration: PT9M3S
duration ms: 543560
explicit: false
by artist: Leoš Janáček
by artist: Wiener Philharmoniker
by artist: Sir Charles Mackerras
in album: Janácek: The Cunning Little Vixen
  type: MusicAlbum
  date published: 1982-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: GBF077810151
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T07:01:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeea44a7b35752a0283559a34913cc0c60d7f3066cfc46a9bb7ad793983d9df57
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/GBF077810151
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 0xeea44a7b35752a0283559a34913cc0c60d7f3066cfc46a9bb7ad793983d9df57. 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/GBF077810151.
  date published: 2026-07-30T07:28:30Z
audio: The Cunning Little Vixen - Orchestral Suite: 1. Andante
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.408
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.261
  additional property: Energy
    type: PropertyValue
    value: 0.049
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.955
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.328
  additional property: Liveness
    type: PropertyValue
    value: 0.156
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.082
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.649
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Minor

The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: Melas delat podlica mné!
type: MusicRecording
duration: PT0M54S
duration ms: 54866
explicit: false
by artist: Leoš Janáček
by artist: Libuse Marova
by artist: Ivana Mixova
by artist: Gertrude Jahn
by artist: Wiener Staatsopernchor
by artist: Wiener Philharmoniker
by artist: Sir Charles Mackerras
in album: Janácek: The Cunning Little Vixen
  type: MusicAlbum
  date published: 1982-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: GBF078140210
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T01:29:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x19cbb7690137d94a5a901601744c82b8b59527ea96db3f54cf7058508cb5c76a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960187
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960187
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078140210
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T01:34:28Z
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 0x19cbb7690137d94a5a901601744c82b8b59527ea96db3f54cf7058508cb5c76a. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/GBF078140210.
  date published: 2026-07-30T01:34:28Z
audio: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: Melas delat podlica mné!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 170.446
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.321
  additional property: Energy
    type: PropertyValue
    value: 0.238
  additional property: Speechiness
    type: PropertyValue
    value: 0.069
  additional property: Acousticness
    type: PropertyValue
    value: 0.954
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.243
  additional property: Liveness
    type: PropertyValue
    value: 0.85
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.318
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.289
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

The Cunning Little Vixen - Orchestral Suite: 2. Andante
type: MusicRecording
duration: PT10M1S
duration ms: 601133
explicit: false
by artist: Leoš Janáček
by artist: Wiener Philharmoniker
by artist: Sir Charles Mackerras
in album: Janácek: The Cunning Little Vixen
  type: MusicAlbum
  date published: 1982-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: GBF077810152
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T11:15:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x35ceee225718ca7ff5d2c5e19a86aee15376c211c6af2169627d873c4f32263c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960254
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960254
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077810152
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T12:06:10Z
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 0x35ceee225718ca7ff5d2c5e19a86aee15376c211c6af2169627d873c4f32263c. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GBF077810152.
  date published: 2026-07-30T12:06:10Z
audio: The Cunning Little Vixen - Orchestral Suite: 2. Andante
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.708
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.241
  additional property: Energy
    type: PropertyValue
    value: 0.118
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.943
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.722
  additional property: Liveness
    type: PropertyValue
    value: 0.109
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.048
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.8
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Minor

The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: Hled'te sestry jakého máte vudce!
type: MusicRecording
duration: PT3M45S
duration ms: 225440
explicit: false
by artist: Leoš Janáček
by artist: Lucia Popp
by artist: Gertrude Jahn
by artist: Ivana Mixova
by artist: Eva Zigmundova
by artist: Wiener Staatsopernchor
by artist: Wiener Philharmoniker
by artist: Sir Charles Mackerras
in album: Janácek: The Cunning Little Vixen
  type: MusicAlbum
  date published: 1982-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: GBF078140211
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T16:28:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe123999f7660bbda9e9a731dac51c3a8b4b38b780000f27a54baf5a335c813bf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960138
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960138
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078140211
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T19:35:34Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe123999f7660bbda9e9a731dac51c3a8b4b38b780000f27a54baf5a335c813bf. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078140211.
  date published: 2026-07-29T19:35:34Z
audio: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 1: Hled'te sestry jakého máte vudce!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.7
  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: 0.373
  additional property: Energy
    type: PropertyValue
    value: 0.298
  additional property: Speechiness
    type: PropertyValue
    value: 0.061
  additional property: Acousticness
    type: PropertyValue
    value: 0.931
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.221
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.136
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.52
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 2: Ach!
type: MusicRecording
duration: PT3M55S
duration ms: 235560
explicit: false
by artist: Leoš Janáček
by artist: Lucia Popp
by artist: Richard Novak
by artist: Wiener Staatsopernchor
by artist: Wiener Philharmoniker
by artist: Sir Charles Mackerras
in album: Janácek: The Cunning Little Vixen
  type: MusicAlbum
  date published: 1982-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: GBF078140212
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T10:18:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x16b731e2ad0d0693de7d3421092f9878527b43d7df8c7a6f5be960b9ef5c8083
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/GBF078140212
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 0x16b731e2ad0d0693de7d3421092f9878527b43d7df8c7a6f5be960b9ef5c8083. 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/GBF078140212.
  date published: 2026-07-07T18:39:05Z
audio: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 2: Ach!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 116.187
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.331
  additional property: Energy
    type: PropertyValue
    value: 0.229
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.936
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.004
  additional property: Liveness
    type: PropertyValue
    value: 0.306
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.212
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.887
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 2: Ano, ve Strani bude daleko lépe
type: MusicRecording
duration: PT3M58S
duration ms: 238066
explicit: false
by artist: Leoš Janáček
by artist: Richard Novak
by artist: Dalibor Jedlicka
by artist: Vladimir Krejcik
by artist: Beno Blachut
by artist: Wiener Staatsopernchor
by artist: Wiener Philharmoniker
by artist: Sir Charles Mackerras
in album: Janácek: The Cunning Little Vixen
  type: MusicAlbum
  date published: 1982-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: GBF078140213
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T22:33:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa237a46cd862093ca03d74fb304e30521c171338d613b3235f9aaa6f2cd8cfef
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/GBF078140213
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 0xa237a46cd862093ca03d74fb304e30521c171338d613b3235f9aaa6f2cd8cfef. 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/GBF078140213.
  date published: 2026-07-08T03:20:19Z
audio: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 2: Ano, ve Strani bude daleko lépe
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.778
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.377
  additional property: Energy
    type: PropertyValue
    value: 0.184
  additional property: Speechiness
    type: PropertyValue
    value: 0.07
  additional property: Acousticness
    type: PropertyValue
    value: 0.966
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.364
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.206
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.539
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 2: Domu? Pro ten snupec tvého spani
type: MusicRecording
duration: PT2M16S
duration ms: 136640
explicit: false
by artist: Leoš Janáček
by artist: Dalibor Jedlicka
by artist: Beno Blachut
by artist: Wiener Philharmoniker
by artist: Sir Charles Mackerras
in album: Janácek: The Cunning Little Vixen
  type: MusicAlbum
  date published: 1982-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: GBF078140214
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T22:08:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0b7c07c4f3e70cf72a787bc6ea01bece26855e980af4f10999bc8a8f719f5b0f
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/GBF078140214
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 0x0b7c07c4f3e70cf72a787bc6ea01bece26855e980af4f10999bc8a8f719f5b0f. 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/GBF078140214.
  date published: 2026-07-08T03:20:19Z
audio: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 2: Domu? Pro ten snupec tvého spani
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.718
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.295
  additional property: Energy
    type: PropertyValue
    value: 0.118
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.936
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.213
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.217
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.974
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 2: Bud'to mám teziste pohyblivé
type: MusicRecording
duration: PT3M3S
duration ms: 183026
explicit: false
by artist: Leoš Janáček
by artist: Vladimir Krejcik
by artist: Wiener Philharmoniker
by artist: Sir Charles Mackerras
in album: Janácek: The Cunning Little Vixen
  type: MusicAlbum
  date published: 1982-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: GBF078140215
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T04:47:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3e7cbd2de6b07a3f140c9477359fcfc13332c053005370fe99fe11dc9d82fd02
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960209
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960209
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078140215
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T05:15:54Z
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 0x3e7cbd2de6b07a3f140c9477359fcfc13332c053005370fe99fe11dc9d82fd02. 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/GBF078140215.
  date published: 2026-07-30T05:15:54Z
audio: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 2: Bud'to mám teziste pohyblivé
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.88
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.354
  additional property: Energy
    type: PropertyValue
    value: 0.177
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.951
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.915
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.328
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.298
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Minor

The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 2: Pomni, abys byl dobrym muzém!
type: MusicRecording
duration: PT3M22S
duration ms: 202933
explicit: false
by artist: Leoš Janáček
by artist: Richard Novak
by artist: Dalibor Jedlicka
by artist: Vladimir Krejcik
by artist: Wiener Staatsopernchor
by artist: Wiener Philharmoniker
by artist: Sir Charles Mackerras
in album: Janácek: The Cunning Little Vixen
  type: MusicAlbum
  date published: 1982-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: GBF078140216
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T01:06:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbc24832c2996de12165ddea8730031cbbb5b82dfbc130751389e6137cd55da94
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/GBF078140216
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 0xbc24832c2996de12165ddea8730031cbbb5b82dfbc130751389e6137cd55da94. 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/GBF078140216.
  date published: 2026-07-08T03:20:19Z
audio: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 2: Pomni, abys byl dobrym muzém!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 121.068
  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: 0.316
  additional property: Energy
    type: PropertyValue
    value: 0.176
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.961
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.369
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.216
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.204
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major

The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 2: Bozinku, ten je hezké!
type: MusicRecording
duration: PT2M36S
duration ms: 156240
explicit: false
by artist: Leoš Janáček
by artist: Lucia Popp
by artist: Eva Randová
by artist: Wiener Philharmoniker
by artist: Sir Charles Mackerras
in album: Janácek: The Cunning Little Vixen
  type: MusicAlbum
  date published: 1982-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: GBF078140217
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T18:22:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078140217
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2696242bc72dfc2e07d7e7d9d6405277845527775089c586b1886256e4fbbfd. 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/GBF078140217.
  date published: 2026-07-08T03:20:19Z
audio: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 2: Bozinku, ten je hezké!
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The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 2: Kradla jsem!
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duration: PT3M7S
duration ms: 187800
explicit: false
by artist: Leoš Janáček
by artist: Lucia Popp
by artist: Wiener Philharmoniker
by artist: Sir Charles Mackerras
in album: Janácek: The Cunning Little Vixen
  type: MusicAlbum
  date published: 1982-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: GBF078140218
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
  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/GBF078140218
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332c4049a816fc9bc1a2f4b51d1ee03f41f5887a34dcc65efe38f97ca2c9879f. 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/GBF078140218.
  date published: 2026-07-08T03:20:19Z
audio: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 2: Kradla jsem!
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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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The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 2: Zlatohrbitek, lisák a krouzkovymi pesiky
type: MusicRecording
duration: PT8M24S
duration ms: 504733
explicit: false
by artist: Leoš Janáček
by artist: Eva Randová
by artist: Lucia Popp
by artist: Wiener Philharmoniker
by artist: Sir Charles Mackerras
in album: Janácek: The Cunning Little Vixen
  type: MusicAlbum
  date published: 1982-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
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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
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078140219
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ef9a74e0443801c7b2a9c22b7de7f97b9f511100703002dd1dbc5c106603ae. 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/GBF078140219.
  date published: 2026-07-08T03:20:19Z
audio: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 2: Zlatohrbitek, lisák a krouzkovymi pesiky
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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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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The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 2: Kdbyste vedeli, co já videla
type: MusicRecording
duration: PT3M26S
duration ms: 206040
explicit: false
by artist: Leoš Janáček
by artist: Eva Zigmundova
by artist: Gertrude Jahn
by artist: Lucia Popp
by artist: Eva Randová
by artist: Ivana Mixova
by artist: Wiener Staatsopernchor
by artist: Wiener Philharmoniker
by artist: Sir Charles Mackerras
in album: Janácek: The Cunning Little Vixen
  type: MusicAlbum
  date published: 1982-01-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
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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
  value: 960160
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960160
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078140220
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T22:48:59Z
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 0xb3f1cb1c15500a641ebab47afe3bee9d93f164cc0f093c336c35296dd155e8f6. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/GBF078140220.
  date published: 2026-07-29T22:48:59Z
audio: The Cunning Little Vixen (Prihody Lisky Bystrousky) / Act 2: Kdbyste vedeli, co já videla
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  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
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A Guided Tour of the Romantic Era, Vol. 14
type: MusicAlbum
date published: 2013-03-12

Ryba: Hej, Mistře!
type: MusicAlbum
date published: 2013-03-26

Salfen: Stations of Mychal
type: MusicAlbum
date published: 2024-08-23

Haydn: Die Jahreszeiten (Czech Radio Symphony Orchestra & Czech Radio Chorus)
type: MusicAlbum
date published: 1986

Zbyněk Vostřák - Portrétní deska ke skladatelovým padesátinám
type: MusicAlbum
date published: 1967

Puccini: Boheme (La)
type: MusicAlbum
date published: 1990-11-12
track: La boheme: Act I: Che gelida manina (Rodolfo)
  type: MusicRecording
  duration: PT4M22S
  duration ms: 262666
  explicit: false
  by artist: Giacomo Puccini
  by artist: Stanislav Beňačka
  by artist: Carmen Gonzales
  by artist: Ladislav Hallon
  by artist: Richard Novak
  by artist: Luba Orgonasova
  by artist: Fabio Previati
  by artist: Boaz Senator
  by artist: Jiri Sulzenko
  by artist: Ivan Urbas
  by artist: Jonathan Welch
  by artist: Slovak Philharmonic Chorus
  by artist: Slovak Radio Symphony Orchestra
  by artist: Will Humburg
  in album: Puccini: Boheme (La)
    type: MusicAlbum
    date published: 1990-11-12
  isrc code: HKI199092209
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
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  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0xd4cda9532a65dad285bc7a9fbfc66a7efd51afad7afc59ea1197fda3b5fe2c02
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
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  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/HKI199092209
  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 0xd4cda9532a65dad285bc7a9fbfc66a7efd51afad7afc59ea1197fda3b5fe2c02. 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/HKI199092209.
    date published: 2026-07-02T03:30:09Z
  audio: La boheme: Act I: Che gelida manina (Rodolfo)
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    additional property: Mode (Major/Minor)
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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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track: La boheme: Act I: Si, mi chiamano Mimi (Mimi, Rodolfo)
  type: MusicRecording
  duration: PT4M32S
  duration ms: 272626
  explicit: false
  by artist: Giacomo Puccini
  by artist: Stanislav Beňačka
  by artist: Carmen Gonzales
  by artist: Ladislav Hallon
  by artist: Richard Novak
  by artist: Luba Orgonasova
  by artist: Fabio Previati
  by artist: Boaz Senator
  by artist: Jiri Sulzenko
  by artist: Ivan Urbas
  by artist: Jonathan Welch
  by artist: Slovak Philharmonic Chorus
  by artist: Slovak Radio Symphony Orchestra
  by artist: Will Humburg
  in album: Puccini: Boheme (La)
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    date published: 1990-11-12
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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: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953515
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199092210
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T12:53:06Z
  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: 2026-06-13T12:53:06Z
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  by artist: Stanislav Beňačka
  by artist: Carmen Gonzales
  by artist: Ladislav Hallon
  by artist: Richard Novak
  by artist: Luba Orgonasova
  by artist: Fabio Previati
  by artist: Boaz Senator
  by artist: Jiri Sulzenko
  by artist: Ivan Urbas
  by artist: Jonathan Welch
  by artist: Slovak Philharmonic Chorus
  by artist: Slovak Radio Symphony Orchestra
  by artist: Will Humburg
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  additional property: CopyrightID
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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
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Giacomo Puccini
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Stanislav Beňačka
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Carmen Gonzales
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Ladislav Hallon
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Luba Orgonasova
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Boaz Senator
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Ivan Urbas
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Slovak Philharmonic Chorus
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Puccini: Boheme (La)
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La boheme: Act I: O soave fanciulla (Rodolfo, Mimi)
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Suita na básně Michelangela Buonarrotiho pro bas a klavír, 145a, Symfonie č. 1 f moll, Op. 10
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date published: 1976

Klusák: Sonata for Violin and Wind Instruments - Burghauser: The Roads - Vostřák: Three Sonets after Shakespeare - Kučera: The Pied Piper
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date published: 2020-02-01

Music from 6 Continents (1991 Series)
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date published: 2011-11-01

Hurník: Solomon, Piano Studies - Šesták: Sonata da camera - Vacek: Olympic Fire
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date published: 2012-11-25

Kubík: To the Future Earth, Songs of Hope
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date published: 2017-04-28