Louis Kentner
type: MusicGroup
genre: historic-piano-performance
genre: hungarian-classical-piano
description: Louis Philip Kentner (19 July 190523 September 1987) was a Hungarian, later British, pianist who excelled in the works of Chopin and Liszt, as well as the Hungarian repertoire.Morrison, Bryce. 'Kentn
popularity: 13
followers: 256
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x40411021f5758e99d4ccad8caeca1d65a2ea196d0e437b411b6352aafea9e310
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953654
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953654
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/48113704-75b3-4b88-a86c-6fcb30fd982b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/48113704-75b3-4b88-a86c-6fcb30fd982b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/48113704-75b3-4b88-a86c-6fcb30fd982b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T16:26:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x40411021f5758e99d4ccad8caeca1d65a2ea196d0e437b411b6352aafea9e310","name":"Louis Kentner","registered_at":"2026-06-14T12:02:30Z","symbol":"NIM0446826","token_address":"0xbb4cb0a64fa0dbb7b30441c98aec831181551e94","type":"artist","uuid":"48113704-75b3-4b88-a86c-6fcb30fd982b"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 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. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40411021f5758e99d4ccad8caeca1d65a2ea196d0e437b411b6352aafea9e310. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/48113704-75b3-4b88-a86c-6fcb30fd982b.json and https://artists.proofprofile.net/proofs/artist/48113704-75b3-4b88-a86c-6fcb30fd982b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T16:26:51Z
  text: {"copyright_id":"0x40411021f5758e99d4ccad8caeca1d65a2ea196d0e437b411b6352aafea9e310","name":"Louis Kentner","registered_at":"2026-06-14T12:02:30Z","symbol":"NIM0446826","token_address":"0xbb4cb0a64fa0dbb7b30441c98aec831181551e94","type":"artist","uuid":"48113704-75b3-4b88-a86c-6fcb30fd982b"}
album: Louis Kentner plays Brahms, Bartok, Walton, Balakirew, Dvorak et al
  type: MusicAlbum
  date published: 2021-03-19
album: Beethoven: Violin Sonatas No. 5 in F Major, Op. 24 "Spring" & No. 10 in G Major, Op. 96
  type: MusicAlbum
  date published: 2020-04-03
album: Chopin and Liszt Piano Pieces (1948 Remastered)
  type: MusicAlbum
  date published: 2021-10-29
album: Beethoven - Waldstein / Appassionata
  type: MusicAlbum
  date published: 2021-10-09
album: Beecham's L. P. O. Years, Vol. 2: Mozart
  type: MusicAlbum
  date published: 2021-06-11
album: Beethoven: Piano Sonata NO. 29 in B Flat, OP. 106 ’Hammerklavier’ - Liszt: Liebesträume NO. 3 in a Flat Major, S. 541, Konzertetüden in a Major, S. 145 (Live)
  type: MusicAlbum
  date published: 2020-11-12
album: Milestones of a Cello Legend: Gaspar Cassadó, Vol. 6
  type: MusicAlbum
  date published: 2019-02-01
album: Balakirev, Lyapunov & Liszt: Piano Works
  type: MusicAlbum
  date published: 2016-10-28
album: Für Elise And Other Piano Favorites
  type: MusicAlbum
  date published: 2014-07-15
album: Masterpieces Presents Johann Sebastian Bach: Violin and Piano Sonatas, BWV 1014 - 1019
  type: MusicAlbum
  date published: 2014
album: Ferenc Fricsay conducts Béla Bartok - The early RIAS recordings (live and studio recordings from Berlin, 1950-1953)
  type: MusicAlbum
  date published: 2011-11-17
album: Bach: Sonata in A Major; Sonata in E Major; Partita No. 3
  type: MusicAlbum
  date published: 2011-03-20
album: The Pioneering Liszt Recordings, Vol. 2
  type: MusicAlbum
  date published: 2009-06-01
album: Balakirev: Piano Sonata / Liszt: Apres Une Lecture Du Dante (Kentner) (1938-1951)
  type: MusicAlbum
  date published: 2007-09-01
album: Beethoven: The 10 Violin Sonatas
  type: MusicAlbum
  date published: 2001-10-15
  track: Beethoven: Violin Sonata No. 5 in F Major, Op. 24 "Spring": III. Scherzo. Allegro molto
  track: Beethoven: Violin Sonata No. 10 in G Major, Op. 96: III. Scherzo. Allegro
  track: Beethoven: Violin Sonata No. 1 in D Major, Op. 12 No. 1: I. Allegro con brio
  track: Beethoven: Violin Sonata No. 7 in C Minor, Op. 30 No. 2: I. Allegro con brio
  track: Beethoven: Violin Sonata No. 7 in C Minor, Op. 30 No. 2: III. Scherzo. Allegro
  track: Beethoven: Violin Sonata No. 3 in E-Flat Major, Op. 12 No. 3: I. Allegro con spirito
  track: Beethoven: Violin Sonata No. 8 in G Major, Op. 30 No. 3: III. Allegro vivace
album: Lyapunov: Transcendental Etudes, Op.11
  type: MusicAlbum
  date published: 2000-01-01
album: Liszt: Études d'exécution transcendante, S. 139 - En Reve
  type: MusicAlbum
  date published: 2000-01-01
album: The Pioneering Liszt Recordings (Recorded 1937-41)
  type: MusicAlbum
  date published: 1996-10-01
album: Liszt: Solo Piano Music
  type: MusicAlbum
  date published: 1992-01-01
album: Liszt: Piano Transcriptions
  type: MusicAlbum
  date published: 1992-01-01
album: Liszt: Piano Music
  type: MusicAlbum
  date published: 1992-01-01
album: Ravel: Piano Trio in A Minor - Mozart: Piano Trio in E Major, K. 542 (Stereo Version)
  type: MusicAlbum
  date published: 1962-01-01
album: Ravel & Mozart: Trios pour piano, violon et violoncelle (Mono Version)
  type: MusicAlbum
  date published: 1962-01-01
album: Beethoven: Sonates pour violon et piano Nos. 8 & 9 "À Kreutzer" (Mono Version)
  type: MusicAlbum
  date published: 1957-01-01
album: Beethoven: Sonates pour violon et piano Nos. 7 & 10 (Mono Version)
  type: MusicAlbum
  date published: 1957-01-01
album: Beethoven: Sonates pour violon et piano Nos. 3 & 4 (Mono Version)
  type: MusicAlbum
  date published: 1957-01-01
album: Beethoven: Sonates pour violon et piano Nos. 1 & 2 (Mono Version)
  type: MusicAlbum
  date published: 1957-01-01
album: Beethoven: Sonates pour piano Nos. 5 "Le printemps" & 6 (Mono Version)
  type: MusicAlbum
  date published: 1957-01-01
album: Chausson: Concert pour piano, violon et quatuor à cordes, Op. 21 (Mono Version)
  type: MusicAlbum
  date published: 1955-01-01
album: Beethoven: Piano Sonata No.29, Op.106
  type: MusicAlbum
  date published: 2022-07-15
album: Beethoven: Sonata No. 5 in F Major, Op. 24 "Spring": IV. Rondo. Allegro ma non troppo
  type: MusicAlbum
  date published: 2020-04-03
album: Beethoven: Sonata No. 5 in F Major, Op. 24 "Spring": III. Scherzo. Allegro molto - Trio
  type: MusicAlbum
  date published: 2020-04-03
album: Beethoven: Sonata No. 5 in F Major, Op. 24 "Spring": II. Adagio molto espressivo
  type: MusicAlbum
  date published: 2020-04-03
album: Beethoven: Sonata No. 5 in F Major, Op. 24 "Spring": I. Allegro
  type: MusicAlbum
  date published: 2020-04-03
album: Beethoven: Sonata No. 10 in G Major, Op. 96: IV. Poco allegretto - Adagio espressivo - Tempo I - Allegro - Poco adagio - Presto
  type: MusicAlbum
  date published: 2020-04-03
album: Beethoven: Sonata No. 10 in G Major, Op. 96: III. Scherzo. Allegro - Trio
  type: MusicAlbum
  date published: 2020-04-03
album: Beethoven: Sonata No. 10 in G Major, Op. 96: II. Adagio espressivo
  type: MusicAlbum
  date published: 2020-04-03
album: Beethoven: Sonata No. 10 in G Major, Op. 96: I. Allegro moderato
  type: MusicAlbum
  date published: 2020-04-03
album: Dvořák: Piano Trio No.4, Op.90
  type: MusicAlbum
  date published: 1941

Beethoven: Violin Sonata No. 5 in F Major, Op. 24 "Spring": III. Scherzo. Allegro molto
type: MusicRecording
duration: PT1M11S
duration ms: 71146
explicit: false
by artist: Ludwig van Beethoven
by artist: Yehudi Menuhin
by artist: Louis Kentner
in album: Beethoven: The 10 Violin Sonatas
  type: MusicAlbum
  date published: 2001-10-15
popularity: 0
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: GBAYC0101976
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T03:27:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb0c0dfe8a4e77b87c6465673b4f567d51707a09045f02f085a4c5694ef1acdb5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956889
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956889
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0101976
additional property: OTSTimestamp
  type: PropertyValue
  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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956889
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-06T06:56:49+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c0dfe8a4e77b87c6465673b4f567d51707a09045f02f085a4c5694ef1acdb5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBAYC0101976.
  date published: 2026-07-06T06:56:49Z
audio: Beethoven: Violin Sonata No. 5 in F Major, Op. 24 "Spring": III. Scherzo. Allegro molto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.528
  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: 0.64
  additional property: Energy
    type: PropertyValue
    value: 0.141
  additional property: Speechiness
    type: PropertyValue
    value: 0.06
  additional property: Acousticness
    type: PropertyValue
    value: 0.988
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.686
  additional property: Liveness
    type: PropertyValue
    value: 0.102
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.727
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.05
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Beethoven: Violin Sonata No. 10 in G Major, Op. 96: III. Scherzo. Allegro
type: MusicRecording
duration: PT1M47S
duration ms: 107666
explicit: false
by artist: Ludwig van Beethoven
by artist: Yehudi Menuhin
by artist: Louis Kentner
in album: Beethoven: The 10 Violin Sonatas
  type: MusicAlbum
  date published: 2001-10-15
popularity: 0
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: GBAYC0101967
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T10:55:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1bb36e438b8b3eccc8a37652de37e50a2815130cbd2dee5bb1cf4b162a1afd93
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957020
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957020
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0101967
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T09:18:01Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957020
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-07T09:18:01+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb36e438b8b3eccc8a37652de37e50a2815130cbd2dee5bb1cf4b162a1afd93. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/GBAYC0101967.
  date published: 2026-07-07T09:18:01Z
audio: Beethoven: Violin Sonata No. 10 in G Major, Op. 96: III. Scherzo. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.412
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.592
  additional property: Energy
    type: PropertyValue
    value: 0.067
  additional property: Speechiness
    type: PropertyValue
    value: 0.057
  additional property: Acousticness
    type: PropertyValue
    value: 0.918
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.008
  additional property: Liveness
    type: PropertyValue
    value: 0.365
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.756
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.449
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Beethoven: Violin Sonata No. 1 in D Major, Op. 12 No. 1: I. Allegro con brio
type: MusicRecording
duration: PT6M10S
duration ms: 370613
explicit: false
by artist: Ludwig van Beethoven
by artist: Yehudi Menuhin
by artist: Louis Kentner
in album: Beethoven: The 10 Violin Sonatas
  type: MusicAlbum
  date published: 2001-10-15
popularity: 0
genre: classical
genre: classical-piano
genre: chamber-music
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6877372f40c1a0a1dea427a33bdbbc2f4d879184324780e3f337ce7b430b5c68. 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/GBAYC0101940.
  date published: 2026-07-30T07:48:45Z
audio: Beethoven: Violin Sonata No. 1 in D Major, Op. 12 No. 1: I. Allegro con brio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.651
  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: 0.35
  additional property: Energy
    type: PropertyValue
    value: 0.097
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.016
  additional property: Liveness
    type: PropertyValue
    value: 0.102
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.283
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.631
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBAYC0101940
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960222
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T07:48:45+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0101940
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: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T07:48:45+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Beethoven: Violin Sonata No. 7 in C Minor, Op. 30 No. 2: I. Allegro con brio
type: MusicRecording
duration: PT8M7S
duration ms: 487160
explicit: false
by artist: Ludwig van Beethoven
by artist: Yehudi Menuhin
by artist: Louis Kentner
in album: Beethoven: The 10 Violin Sonatas
  type: MusicAlbum
  date published: 2001-10-15
popularity: 0
genre: classical
genre: classical-piano
genre: chamber-music
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0736fd32600529a51b7581d875e9e107fbfd740c30277a9d7939ee7b1aa2a8. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0101956.
  date published: 2026-07-31T16:33:26Z
audio: Beethoven: Violin Sonata No. 7 in C Minor, Op. 30 No. 2: I. Allegro con brio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.673
  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: 0.44
  additional property: Energy
    type: PropertyValue
    value: 0.155
  additional property: Speechiness
    type: PropertyValue
    value: 0.06
  additional property: Acousticness
    type: PropertyValue
    value: 0.96
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.129
  additional property: Liveness
    type: PropertyValue
    value: 0.089
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.205
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.727
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: GBAYC0101956
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960435
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T16:33:26+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0101956
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960435
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960435
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T16:33:26+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Beethoven: Violin Sonata No. 7 in C Minor, Op. 30 No. 2: III. Scherzo. Allegro
type: MusicRecording
duration: PT3M35S
duration ms: 215066
explicit: false
by artist: Ludwig van Beethoven
by artist: Yehudi Menuhin
by artist: Louis Kentner
in album: Beethoven: The 10 Violin Sonatas
  type: MusicAlbum
  date published: 2001-10-15
popularity: 0
genre: classical
genre: classical-piano
genre: chamber-music
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba903b760777e06d9afa2259174a00a74a8daf03399253abc7143a1328bb625. 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/GBAYC0101958.
  date published: 2026-07-30T05:15:54Z
audio: Beethoven: Violin Sonata No. 7 in C Minor, Op. 30 No. 2: III. Scherzo. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.868
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.647
  additional property: Energy
    type: PropertyValue
    value: 0.137
  additional property: Speechiness
    type: PropertyValue
    value: 0.084
  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.465
  additional property: Liveness
    type: PropertyValue
    value: 0.159
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.387
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.41
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBAYC0101958
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960209
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T05:15:54+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0101958
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: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T05:15:54+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Beethoven: Violin Sonata No. 3 in E-Flat Major, Op. 12 No. 3: I. Allegro con spirito
type: MusicRecording
duration: PT6M18S
duration ms: 378120
explicit: false
by artist: Ludwig van Beethoven
by artist: Yehudi Menuhin
by artist: Louis Kentner
in album: Beethoven: The 10 Violin Sonatas
  type: MusicAlbum
  date published: 2001-10-15
popularity: 0
genre: classical
genre: classical-piano
genre: chamber-music
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32017f3742c4bed67e09e2f808ee9ec7726522014e70a7c8772563aa34333ce7. 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/GBAYC0101948.
  date published: 2026-07-31T15:20:15Z
audio: Beethoven: Violin Sonata No. 3 in E-Flat Major, Op. 12 No. 3: I. Allegro con spirito
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.172
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.375
  additional property: Energy
    type: PropertyValue
    value: 0.113
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.132
  additional property: Liveness
    type: PropertyValue
    value: 0.25
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.344
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.268
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBAYC0101948
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960418
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T15:20:15+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0101948
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: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:20:15+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Beethoven: Violin Sonata No. 8 in G Major, Op. 30 No. 3: III. Allegro vivace
type: MusicRecording
duration: PT3M35S
duration ms: 215893
explicit: false
by artist: Ludwig van Beethoven
by artist: Yehudi Menuhin
by artist: Louis Kentner
in album: Beethoven: The 10 Violin Sonatas
  type: MusicAlbum
  date published: 2001-10-15
popularity: 0
genre: classical
genre: classical-piano
genre: chamber-music
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1bd9f5359aeee0bd47d12ce41a74b0d79d00e89a74dcc0ed49ae7430581b54c. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0101963.
  date published: 2026-07-30T06:39:12Z
audio: Beethoven: Violin Sonata No. 8 in G Major, Op. 30 No. 3: III. Allegro vivace
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.825
  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: 0.475
  additional property: Energy
    type: PropertyValue
    value: 0.245
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.804
  additional property: Liveness
    type: PropertyValue
    value: 0.098
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.684
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.529
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBAYC0101963
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960216
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T06:39:12+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0101963
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960216
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960216
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T06:39:12+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch