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album: Gounod: Faust (Excerpts) (Sung in Hungarian)
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album: Gluck: Orfeo ed Euridice - Mozart: Le Nozze di Figaro - Così fan tutte - La Clemenza di Tito
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album: Annie Fischer: The Centennial Collection
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album: Mozart: Piano Concertos Nos. 21 and 22 / Rondo, K. 382
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album: 99 Must-Have Mozart Masterpieces
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      date published: 2026-07-08T03:20:19Z
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album: Soprano Love Arias: 50 Must-Have Opera Classics
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album: 100 Must-Have Austrian Classics
album: Fifty Years of Hungaroton (1951-2001) - Conductors
album: 300 Years Dance Music
album: Lalo: Symphonie Espagnole - D'Indy: Symphonie Cevenole
album: 50 Years of Hungaraton (1951-2000): Singers
album: 400 Years Of The Opera, Vol. 1
album: Viennese Classicism In Slow Movements, Vol. 1: Haydn
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album: Agay, Karola: Songs by Stradella, Caccini, Scarlatti, Britten and Others, and Hungarian Love Songs
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album: Mozart, W.A.: Ave Verum Corpus / Exsultate Jubilate / Laudate Dominum / Church Sonata No. 15 / Fantasy in F Minor, K. 608 / Ah, Lo Previdi

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Soprano Love Arias: 50 Must-Have Opera Classics
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Pergolesi: Stabat Mater / Respighi: Il Tramonto / Mozart: Piano Concerto No. 21, "Elvira Madigan"
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100 Must-Have Austrian Classics
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Fifty Years of Hungaroton (1951-2001) - Conductors
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300 Years Dance Music
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Lalo: Symphonie Espagnole - D'Indy: Symphonie Cevenole
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50 Years of Hungaraton (1951-2000): Singers
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400 Years Of The Opera, Vol. 1
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Viennese Classicism In Slow Movements, Vol. 1: Haydn
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track: Janos vitez (Hero John): Act II: A francia kiraly belepoje: Vivtam eletemben sok nehez csatat
track: Janos vitez (Hero John): Act I: Bago dala: A fuszulyka szara
track: Janos vitez (Hero John): Act II: Janos belepoje: Szep huszarok
track: Janos vitez (Hero John): Act I: Mellettem csatazo pajtasom
track: Janos vitez (Hero John): Act II: Egyuttes: Szep a huszar, ha lora pattan
track: Janos vitez (Hero John): Act I: Egyuttes
track: Janos vitez (Hero John): Act I: Jancsi belepoje: En a pasztorok kiralya
track: Janos vitez (Hero John): Act I: Iluska dala: Van egy szegeny kis arvalany
track: Janos vitez (Hero John): Act II: Finale B
track: Janos vitez (Hero John): Act I: Furulyanota: En vagyok a bojtargyerek, Jancsi
track: Janos vitez (Hero John): Act II: Finale C
track: Janos vitez (Hero John): Act III: Elozene
track: Janos vitez (Hero John): Act III: Bago dala: A furulyam, jaj be busan szol
track: Janos vitez (Hero John): Act II: A francia kiralyleany dala: O csak ne volnek gyonge lanyka
track: Janos vitez (Hero John): Act III: Kek to, tiszta to
track: Janos vitez (Hero John): Act III: Finale A: Balett
track: Janos vitez (Hero John): Act III: Finale C: Befejezo melodrama

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by artist: Gyorgy Radnai
by artist: Gyorgy Melis
by artist: Anna Zentai
by artist: Robert Ilosfalvy
by artist: Tivadar Bilicsi
by artist: Mária Gyurkovics
by artist: Hilda Gobbi
by artist: Pethes Sandor
by artist: Hungarian Radio and Television Chorus
by artist: Hungarian State Opera Orchestra
by artist: Ervin Lukacs
in album: János vitéz
  type: MusicAlbum
  date published: 2015-01-01
isrc code: HUA250401203
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T12:02:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf5093092760f11a662f1f73dc1d208ee6e762e78c19d98fb6daaf6d148c3903f
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/HUA250401203
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 0xf5093092760f11a662f1f73dc1d208ee6e762e78c19d98fb6daaf6d148c3903f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA250401203 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Janos vitez (Hero John): Act II: Janos belepoje: Szep huszarok
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 96.415
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.576
  additional property: Energy
    type: PropertyValue
    value: 0.197
  additional property: Speechiness
    type: PropertyValue
    value: 0.51
  additional property: Acousticness
    type: PropertyValue
    value: 0.916
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.218
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.323
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.798
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Janos vitez (Hero John): Act I: Mellettem csatazo pajtasom
type: MusicRecording
duration: PT5M35S
duration ms: 335000
explicit: false
by artist: Pongrác Kacsóh
by artist: Gyorgy Radnai
by artist: Gyorgy Melis
by artist: Anna Zentai
by artist: Robert Ilosfalvy
by artist: Tivadar Bilicsi
by artist: Mária Gyurkovics
by artist: Hilda Gobbi
by artist: Pethes Sandor
by artist: Hungarian Radio and Television Chorus
by artist: Hungarian State Opera Orchestra
by artist: Ervin Lukacs
in album: János vitéz
  type: MusicAlbum
  date published: 2015-01-01
isrc code: HUA250401104
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T05:34:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x609b43f1deeda6cb2bf7277388349bef8035b47aee76eb12524144b3554df8c5
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/HUA250401104
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 0x609b43f1deeda6cb2bf7277388349bef8035b47aee76eb12524144b3554df8c5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA250401104 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Janos vitez (Hero John): Act I: Mellettem csatazo pajtasom
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.435
  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: 0.401
  additional property: Energy
    type: PropertyValue
    value: 0.226
  additional property: Speechiness
    type: PropertyValue
    value: 0.096
  additional property: Acousticness
    type: PropertyValue
    value: 0.975
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.368
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.261
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.409
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Janos vitez (Hero John): Act II: Egyuttes: Szep a huszar, ha lora pattan
type: MusicRecording
duration: PT6M39S
duration ms: 399573
explicit: false
by artist: Pongrác Kacsóh
by artist: Gyorgy Radnai
by artist: Gyorgy Melis
by artist: Anna Zentai
by artist: Robert Ilosfalvy
by artist: Tivadar Bilicsi
by artist: Mária Gyurkovics
by artist: Hilda Gobbi
by artist: Pethes Sandor
by artist: Hungarian Radio and Television Chorus
by artist: Hungarian State Opera Orchestra
by artist: Ervin Lukacs
in album: János vitéz
  type: MusicAlbum
  date published: 2015-01-01
isrc code: HUA250401204
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T05:55:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc9a4a3619f46e4d6d46ca4cb9a88b99a514c545129d24f3ad0ef784447864bfb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960360
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960360
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA250401204
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T06:42:11Z
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 0xc9a4a3619f46e4d6d46ca4cb9a88b99a514c545129d24f3ad0ef784447864bfb. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA250401204 — a six-check JSON result.
  date published: 2026-07-31T06:42:11Z
audio: Janos vitez (Hero John): Act II: Egyuttes: Szep a huszar, ha lora pattan
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.641
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.431
  additional property: Energy
    type: PropertyValue
    value: 0.223
  additional property: Speechiness
    type: PropertyValue
    value: 0.114
  additional property: Acousticness
    type: PropertyValue
    value: 0.961
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.708
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.172
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.226
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Janos vitez (Hero John): Act I: Egyuttes
type: MusicRecording
duration: PT7M30S
duration ms: 450066
explicit: false
by artist: Pongrác Kacsóh
by artist: Gyorgy Radnai
by artist: Gyorgy Melis
by artist: Anna Zentai
by artist: Robert Ilosfalvy
by artist: Tivadar Bilicsi
by artist: Mária Gyurkovics
by artist: Hilda Gobbi
by artist: Pethes Sandor
by artist: Hungarian Radio and Television Chorus
by artist: Hungarian State Opera Orchestra
by artist: Ervin Lukacs
in album: János vitéz
  type: MusicAlbum
  date published: 2015-01-01
isrc code: HUA250401105
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T23:44:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7491645c88cadef014330bfc8bc58023c2f624099d4e2571f9685b173a3cfc85
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960327
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960327
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA250401105
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T00:26:26Z
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 0x7491645c88cadef014330bfc8bc58023c2f624099d4e2571f9685b173a3cfc85. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA250401105 — a six-check JSON result.
  date published: 2026-07-31T00:26:26Z
audio: Janos vitez (Hero John): Act I: Egyuttes
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.046
  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: 0.391
  additional property: Energy
    type: PropertyValue
    value: 0.148
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.979
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.745
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.146
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.592
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Janos vitez (Hero John): Act I: Jancsi belepoje: En a pasztorok kiralya
type: MusicRecording
duration: PT8M6S
duration ms: 486200
explicit: false
by artist: Pongrác Kacsóh
by artist: Gyorgy Radnai
by artist: Gyorgy Melis
by artist: Anna Zentai
by artist: Robert Ilosfalvy
by artist: Tivadar Bilicsi
by artist: Mária Gyurkovics
by artist: Hilda Gobbi
by artist: Pethes Sandor
by artist: Hungarian Radio and Television Chorus
by artist: Hungarian State Opera Orchestra
by artist: Ervin Lukacs
in album: János vitéz
  type: MusicAlbum
  date published: 2015-01-01
isrc code: HUA250401106
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T23:24:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcd41a11e8259bef41ba770b9d1d534894547f9742ae5f3213bc667b1c213986e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960327
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960327
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA250401106
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T00:26:26Z
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 0xcd41a11e8259bef41ba770b9d1d534894547f9742ae5f3213bc667b1c213986e. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA250401106 — a six-check JSON result.
  date published: 2026-07-31T00:26:26Z
audio: Janos vitez (Hero John): Act I: Jancsi belepoje: En a pasztorok kiralya
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.824
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.526
  additional property: Energy
    type: PropertyValue
    value: 0.137
  additional property: Speechiness
    type: PropertyValue
    value: 0.544
  additional property: Acousticness
    type: PropertyValue
    value: 0.922
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.521
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.214
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.96
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Janos vitez (Hero John): Act I: Iluska dala: Van egy szegeny kis arvalany
type: MusicRecording
duration: PT4M50S
duration ms: 290626
explicit: false
by artist: Pongrác Kacsóh
by artist: Gyorgy Radnai
by artist: Gyorgy Melis
by artist: Anna Zentai
by artist: Robert Ilosfalvy
by artist: Tivadar Bilicsi
by artist: Mária Gyurkovics
by artist: Hilda Gobbi
by artist: Pethes Sandor
by artist: Hungarian Radio and Television Chorus
by artist: Hungarian State Opera Orchestra
by artist: Ervin Lukacs
in album: János vitéz
  type: MusicAlbum
  date published: 2015-01-01
isrc code: HUA250401107
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T09:32:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x813208914737b1976860f56cfdfa62e792f1fc9ba39ddf61631aa83ee38bc8be
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/HUA250401107
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 0x813208914737b1976860f56cfdfa62e792f1fc9ba39ddf61631aa83ee38bc8be. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA250401107 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Janos vitez (Hero John): Act I: Iluska dala: Van egy szegeny kis arvalany
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.789
  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: 0.33
  additional property: Energy
    type: PropertyValue
    value: 0.065
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.959
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.258
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.068
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.05
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Janos vitez (Hero John): Act II: Finale B
type: MusicRecording
duration: PT10M8S
duration ms: 608106
explicit: false
by artist: Pongrác Kacsóh
by artist: Gyorgy Radnai
by artist: Gyorgy Melis
by artist: Anna Zentai
by artist: Robert Ilosfalvy
by artist: Tivadar Bilicsi
by artist: Mária Gyurkovics
by artist: Hilda Gobbi
by artist: Pethes Sandor
by artist: Hungarian Radio and Television Chorus
by artist: Hungarian State Opera Orchestra
by artist: Ervin Lukacs
in album: János vitéz
  type: MusicAlbum
  date published: 2015-01-01
isrc code: HUA250401207
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:59:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa73d43f3989d856d06821cf30699cc93ef74760cf15862593a9903825dd80ed8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA250401207
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xa73d43f3989d856d06821cf30699cc93ef74760cf15862593a9903825dd80ed8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA250401207 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: Janos vitez (Hero John): Act II: Finale B
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.735
  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: 0.242
  additional property: Energy
    type: PropertyValue
    value: 0.086
  additional property: Speechiness
    type: PropertyValue
    value: 0.062
  additional property: Acousticness
    type: PropertyValue
    value: 0.954
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.248
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.064
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.746
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Janos vitez (Hero John): Act I: Furulyanota: En vagyok a bojtargyerek, Jancsi
type: MusicRecording
duration: PT4M10S
duration ms: 250706
explicit: false
by artist: Pongrác Kacsóh
by artist: Gyorgy Radnai
by artist: Gyorgy Melis
by artist: Anna Zentai
by artist: Robert Ilosfalvy
by artist: Tivadar Bilicsi
by artist: Mária Gyurkovics
by artist: Hilda Gobbi
by artist: Pethes Sandor
by artist: Hungarian Radio and Television Chorus
by artist: Hungarian State Opera Orchestra
by artist: Ervin Lukacs
in album: János vitéz
  type: MusicAlbum
  date published: 2015-01-01
isrc code: HUA250401108
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T05:34:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0e51ced84a31fc3a910b73a84e0b7a161edbed60b3a454a6697c3e8123255f5b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960354
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960354
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA250401108
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T05:48:18Z
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 0x0e51ced84a31fc3a910b73a84e0b7a161edbed60b3a454a6697c3e8123255f5b. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA250401108 — a six-check JSON result.
  date published: 2026-07-31T05:48:18Z
audio: Janos vitez (Hero John): Act I: Furulyanota: En vagyok a bojtargyerek, Jancsi
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.567
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.354
  additional property: Energy
    type: PropertyValue
    value: 0.13
  additional property: Speechiness
    type: PropertyValue
    value: 0.325
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.454
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.209
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.825
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Janos vitez (Hero John): Act II: Finale C
type: MusicRecording
duration: PT11M41S
duration ms: 701360
explicit: false
by artist: Pongrác Kacsóh
by artist: Gyorgy Radnai
by artist: Gyorgy Melis
by artist: Anna Zentai
by artist: Robert Ilosfalvy
by artist: Tivadar Bilicsi
by artist: Mária Gyurkovics
by artist: Hilda Gobbi
by artist: Pethes Sandor
by artist: Hungarian Radio and Television Chorus
by artist: Hungarian State Opera Orchestra
by artist: Ervin Lukacs
in album: János vitéz
  type: MusicAlbum
  date published: 2015-01-01
isrc code: HUA250401208
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T08:26:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x590a118bce4f8959bda4e7ebd75e5000cdb2903542979a4dd29601ee8c545ab3
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/HUA250401208
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 0x590a118bce4f8959bda4e7ebd75e5000cdb2903542979a4dd29601ee8c545ab3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA250401208 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Janos vitez (Hero John): Act II: Finale C
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 160.287
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.18
  additional property: Energy
    type: PropertyValue
    value: 0.117
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.038
  additional property: Liveness
    type: PropertyValue
    value: 0.158
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.041
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.638
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Janos vitez (Hero John): Act III: Elozene
type: MusicRecording
duration: PT4M15S
duration ms: 255600
explicit: false
by artist: Pongrác Kacsóh
by artist: Gyorgy Radnai
by artist: Gyorgy Melis
by artist: Anna Zentai
by artist: Robert Ilosfalvy
by artist: Tivadar Bilicsi
by artist: Mária Gyurkovics
by artist: Hilda Gobbi
by artist: Pethes Sandor
by artist: Hungarian Radio and Television Chorus
by artist: Hungarian State Opera Orchestra
by artist: Ervin Lukacs
in album: János vitéz
  type: MusicAlbum
  date published: 2015-01-01
isrc code: HUA250401209
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:39:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3b50e6869fa356e49dfd13428064cffe54e5e95abef80613e1cbf34d224403ae
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/HUA250401209
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 0x3b50e6869fa356e49dfd13428064cffe54e5e95abef80613e1cbf34d224403ae. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA250401209 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Janos vitez (Hero John): Act III: Elozene
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 120.221
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.303
  additional property: Energy
    type: PropertyValue
    value: 0.067
  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.957
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.009
  additional property: Liveness
    type: PropertyValue
    value: 0.526
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.143
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.933
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Janos vitez (Hero John): Act III: Bago dala: A furulyam, jaj be busan szol
type: MusicRecording
duration: PT8M23S
duration ms: 503533
explicit: false
by artist: Pongrác Kacsóh
by artist: Gyorgy Radnai
by artist: Gyorgy Melis
by artist: Anna Zentai
by artist: Robert Ilosfalvy
by artist: Tivadar Bilicsi
by artist: Mária Gyurkovics
by artist: Hilda Gobbi
by artist: Pethes Sandor
by artist: Hungarian Radio and Television Chorus
by artist: Hungarian State Opera Orchestra
by artist: Ervin Lukacs
in album: János vitéz
  type: MusicAlbum
  date published: 2015-01-01
isrc code: HUA250401210
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T13:32:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2e937e85f3b78cef3bd04aea7b56a593d981d0e3813a0871348e99ffabdae986
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960410
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960410
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA250401210
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:50:38Z
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 0x2e937e85f3b78cef3bd04aea7b56a593d981d0e3813a0871348e99ffabdae986. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA250401210 — a six-check JSON result.
  date published: 2026-07-31T13:50:38Z
audio: Janos vitez (Hero John): Act III: Bago dala: A furulyam, jaj be busan szol
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.015
  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: 0.459
  additional property: Energy
    type: PropertyValue
    value: 0.088
  additional property: Speechiness
    type: PropertyValue
    value: 0.289
  additional property: Acousticness
    type: PropertyValue
    value: 0.927
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.165
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.142
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.527
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Janos vitez (Hero John): Act II: A francia kiralyleany dala: O csak ne volnek gyonge lanyka
type: MusicRecording
duration: PT3M7S
duration ms: 187760
explicit: false
by artist: Pongrác Kacsóh
by artist: Gyorgy Radnai
by artist: Gyorgy Melis
by artist: Anna Zentai
by artist: Robert Ilosfalvy
by artist: Tivadar Bilicsi
by artist: Mária Gyurkovics
by artist: Hilda Gobbi
by artist: Pethes Sandor
by artist: Hungarian Radio and Television Chorus
by artist: Hungarian State Opera Orchestra
by artist: Ervin Lukacs
in album: János vitéz
  type: MusicAlbum
  date published: 2015-01-01
isrc code: HUA250401111
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T18:36:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa2cfbb110133259fc47ac10a5c5cce2f7c39ac696a0fb3a924b35a6c92e683bf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA250401111
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xa2cfbb110133259fc47ac10a5c5cce2f7c39ac696a0fb3a924b35a6c92e683bf. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA250401111 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: Janos vitez (Hero John): Act II: A francia kiralyleany dala: O csak ne volnek gyonge lanyka
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.439
  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: 0.326
  additional property: Energy
    type: PropertyValue
    value: 0.125
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.979
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.046
  additional property: Liveness
    type: PropertyValue
    value: 0.163
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.107
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.564
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Janos vitez (Hero John): Act III: Kek to, tiszta to
type: MusicRecording
duration: PT3M28S
duration ms: 208666
explicit: false
by artist: Pongrác Kacsóh
by artist: Gyorgy Radnai
by artist: Gyorgy Melis
by artist: Anna Zentai
by artist: Robert Ilosfalvy
by artist: Tivadar Bilicsi
by artist: Mária Gyurkovics
by artist: Hilda Gobbi
by artist: Pethes Sandor
by artist: Hungarian Radio and Television Chorus
by artist: Hungarian State Opera Orchestra
by artist: Ervin Lukacs
in album: János vitéz
  type: MusicAlbum
  date published: 2015-01-01
isrc code: HUA250401211
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T15:42:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc108b632975e7863c0a966c5acd28584b47f4462c1456aa6ebbc9671bf934de1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960276
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960276
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA250401211
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T16:01:17Z
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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Janos vitez (Hero John): Act III: Finale A: Balett
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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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Janos vitez (Hero John): Act III: Finale C: Befejezo melodrama
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T23:51:35Z
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Viennese Classicism In Slow Movements, Vol. 2: Mozart
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-07T14:04:01Z
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track: Violin Concerto No. 4 in D Major, K. 218: II. Andante cantabile (cadenza by Joseph Joachim)
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  subject of: OpenTimestamps Proof of Existence
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track: Klarinettenkonzert A-Dur, K. 622: 2. Adagio (Jenseits von Afrika): Clarinet Concerto in A Major, K. 622: II. Adagio (cadenza by Bela Kovacs)
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track: Divertimento No. 7 in D Major, K. 205: III. Adagio
track: Piano Concerto No. 23 in A Major, K. 488: II. Adagio

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Klarinettenkonzert A-Dur, K. 622: 2. Adagio (Jenseits von Afrika): Clarinet Concerto in A Major, K. 622: II. Adagio (cadenza by Bela Kovacs)
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Divertimento No. 7 in D Major, K. 205: III. Adagio
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subject of: OpenTimestamps Proof of Existence
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Piano Concerto No. 23 in A Major, K. 488: II. Adagio
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Wedding Music
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The Masters Collection
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Sylvia Sass Anniversary Edition
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Eva Marton: The 1971-77 Recordings
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Bartók: Violin Concertos
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Sass, Slvia: Mozart - Wagner Recital
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Bartók: Symphonic Works, Vol. 2 (Complete Edition)
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Gluck: Orfeo ed Euridice (Highlights)
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Schubert - Symphony, No. 9, The Great
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Mozart & M. Haydn: Flute Concertos
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Mozart: Wind Serenade
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Haydn: Symphonies "Oxford" & "The Clock"
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Strauss R.: 4 Last Songs
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Sass, Sylvia: Soprano Arias From Verdi and Donizetti
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Hamari, Julia: Mezzo-Soprano Arias
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Agay, Karola: Songs by Stradella, Caccini, Scarlatti, Britten and Others, and Hungarian Love Songs
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Gluck, C.W.: Orfeo Ed Euridice [Opera]
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Famous Opera Ballets
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Mozart, W.A.: Ave Verum Corpus / Exsultate Jubilate / Laudate Dominum / Church Sonata No. 15 / Fantasy in F Minor, K. 608 / Ah, Lo Previdi
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