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genre: opera
description: thumb|Keilberth photographed by Avraham Pisarek, 1945 Joseph Keilberth (19 April 1908 – 20 July 1968) was a German conductor who specialised in opera. Career Keilberth began his career in the State
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album: Berliner Philharmoniker - Brahms
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album: Wagner: Siegfried, WWV 86C & Parsifal, WWV 111 (Excerpts) [Live]
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album: The Symphony Lounge, Vol. 10: Mozart Symphonies Nos. 40-41 & Eine kleine Nachtmusik
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track: Beethoven: Symphony No. 5 in C Minor, Op. 67: I. Allegro con brio
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Berliner Philharmoniker - Brahms
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value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738d71f5c8ebf8765f22ca25a5915408d26002bb9c2d984afa31f0692a9cf61e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC629502797 — a six-check JSON result.
date published: 2026-07-31T15:20:15Z

Brahms: Violin Concerto in D Major, Op. 77: II. Adagio
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 124.303
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: 0.197
additional property: Energy
  type: PropertyValue
  value: 0.038
additional property: Speechiness
  type: PropertyValue
  value: 0.044
additional property: Acousticness
  type: PropertyValue
  value: 0.96
additional property: Instrumentalness
  type: PropertyValue
  value: 0.377
additional property: Liveness
  type: PropertyValue
  value: 0.066
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.037
additional property: Loudness (dB)
  type: PropertyValue
  value: -30.871
additional property: Key Name
  type: PropertyValue
  value: F
additional property: Mode Name
  type: PropertyValue
  value: Major

Kaminski, Schwarz-Schilling, & Höller: Orchestra Works
type: MusicAlbum
date published: 2022-04-01

Wagner: Siegfried, WWV 86C & Parsifal, WWV 111 (Excerpts) [Live]
type: MusicAlbum
date published: 2022-02-04

R. Strauss: Orchestral Works
type: MusicAlbum
date published: 2020-12-11

Mozart, Beethoven & Others: Piano Concertos (Live)
type: MusicAlbum
date published: 2020-02-14

Mozart: Serenades
type: MusicAlbum
date published: 2019-08-14

The Symphony Lounge, Vol. 10: Mozart Symphonies Nos. 40-41 & Eine kleine Nachtmusik
type: MusicAlbum
date published: 2019-06-21

Schubert, Berg & Bruckner: Orchestral Works (Live)
type: MusicAlbum
date published: 2019-03-22

More Piano Giants: Annie Fischer, Vol. 8 (1958)
type: MusicAlbum
date published: 2019-03-15

R. Strauss: Arabella, Op. 79, TrV 263 & 4 Letzte Lieder, TrV 296 (Live)
type: MusicAlbum
date published: 2019-03-08

The Romantic Aspect in German & Australian Classics (Live)
type: MusicAlbum
date published: 2018-06-15

The Telefunken Recordings 1953-1963
type: MusicAlbum
date published: 2018-06-01

Milestones of a Legend - Georg Kulenkampff, Vol. 5 (1941, 1948)
type: MusicAlbum
date published: 2018-03-18

Beethoven & Brahms: Works for Piano (Live)
type: MusicAlbum
date published: 2018-03-09

C. P. E. Bach - L. van Beethoven - J. Brahms, Concert du 25/09/1962, Orchestre National de la RTF, Joseph Keilberth (dir), Whilhelm Backhaus (piano)
type: MusicAlbum
date published: 2016-11-22

Salome: Salome, Op. 54, TrV 215
type: MusicAlbum
date published: 2016-07-01

Pfitzner: Palestrina
type: MusicAlbum
date published: 2016-07-01

Opernszenen, Vol. 1: Dietrich Fischer-Dieskau 1965-1976
type: MusicAlbum
date published: 2016-07-01

Mozart, Einem, Wagner & R. Strauss: Opera Arias
type: MusicAlbum
date published: 2016-07-01

Janáček: Výlety páne Brouckovy
type: MusicAlbum
date published: 2016-07-01

Richard Strauss: Salome, Op. 54, TrV 215 (Bayerische Staatsoper Live)
type: MusicAlbum
date published: 2016-01-01

R. Strauss: Die ägyptische Helena, Op. 75 (Live)
type: MusicAlbum
date published: 2016-01-01

Mozart: Symphony No. 40 in G Minor, K. 550 - Brahms: Symphony No. 2 in D Major, Op. 73
type: MusicAlbum
date published: 2016-01-01

Janáček: Výlety páne Brouckovy, JW I/7 (Sung in German) [Bayerische Staatsoper Live]
type: MusicAlbum
date published: 2016-01-01

Der Rosenkavalier
type: MusicAlbum
date published: 2016-01-01

Brahms, Schumann & R. Strauss
type: MusicAlbum
date published: 2016-01-01

Beethoven: Orchestral Works
type: MusicAlbum
date published: 2016-01-01

Tomasi: Don Juan de Mañara
type: MusicAlbum
date published: 2015-09-04

The Great Violin Concertos Recorded in Berlin
type: MusicAlbum
date published: 2015-09-01

Die Schöpfung: Keilberth / Cologne RSO
type: MusicAlbum
date published: 2015-09-01

Die Schopfung: Keilberth / Cologne RSO
type: MusicAlbum
date published: 2015-09-01

Richard Wagner: Lohengrin
type: MusicAlbum
date published: 2015-07-17

Richard Wagner: Das Rheingold
type: MusicAlbum
date published: 2015-07-17

Richard Wagner: Siegfried
type: MusicAlbum
date published: 2015-07-10

Richard Wagner: Götterdämmerung
type: MusicAlbum
date published: 2015-07-10

Joseph Keilberth: Rare Recordings (1943-1957)
type: MusicAlbum
date published: 2015-07-01

Die Zauberflöte (The Magic Flute), K. 620
type: MusicAlbum
date published: 2015-07-01

Beethoven: Fidelio
type: MusicAlbum
date published: 2015-03-01

Wagner: Siegfried, WWV 86C (Live)
type: MusicAlbum
date published: 2024-07-05

Hindemith: Cardillac; Mathis der Maler (Excerpts)
type: MusicAlbum
date published: 2007-01-01

Verdi: Macbeth (Live Recordings 1950) [Sung in German]
type: MusicAlbum
date published: 2014-07-01

Wagner: Siegfried
type: MusicAlbum
date published: 2015-02-01

Mozart: Die Zauberflöte, K. 620
type: MusicAlbum
date published: 2014-09-01

Chorszenen und Konzertchöre in Rundfunkaufnahmen ab 1938
type: MusicAlbum
date published: 2018-03-02
track: Die Meistersinger von Nürnberg, WWV 96: Silentium! Silentium!
  type: MusicRecording
  duration: PT4M40S
  duration ms: 280800
  explicit: false
  by artist: Richard Wagner
  by artist: Saxon State Opera Chorus, Dresden
  by artist: Staatskapelle Dresden
  by artist: Karl Böhm
  in album: Chorszenen und Konzertchöre in Rundfunkaufnahmen ab 1938
    type: MusicAlbum
    date published: 2018-03-02
  popularity: 2
  genre: classical
  genre: opera
  isrc code: DEAD61703101
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T10:17:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x925beb334e4510324cb2cbbc05be3a76e9342f2860b61c9f887212bfc3032cbd
  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/DEAD61703101
  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 0x925beb334e4510324cb2cbbc05be3a76e9342f2860b61c9f887212bfc3032cbd. 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/DEAD61703101 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Die Meistersinger von Nürnberg, WWV 96: Silentium! Silentium!
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 137.391
    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: 0.271
    additional property: Energy
      type: PropertyValue
      value: 0.331
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.837
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.823
    additional property: Liveness
      type: PropertyValue
      value: 0.132
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.087
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.88
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Lohengrin, WWV 75 (Highlights): Gesegnet soll sie schreiten
  type: MusicRecording
  duration: PT4M6S
  duration ms: 246800
  explicit: false
  by artist: Richard Wagner
  by artist: Saxon State Opera Chorus, Dresden
  by artist: Staatskapelle Dresden
  by artist: Karl Böhm
  in album: Chorszenen und Konzertchöre in Rundfunkaufnahmen ab 1938
    type: MusicAlbum
    date published: 2018-03-02
  popularity: 1
  genre: classical
  genre: opera
  isrc code: DEAD61703104
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T20:56:57+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x98e7f7a947768f8ce3d4fb1abb602183bbe7ed51d6a799af45f385a2961c7276
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960468
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960468
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD61703104
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T21:25:57Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e7f7a947768f8ce3d4fb1abb602183bbe7ed51d6a799af45f385a2961c7276. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD61703104 — a six-check JSON result.
    date published: 2026-07-31T21:25:57Z
  audio: Lohengrin, WWV 75 (Highlights): Gesegnet soll sie schreiten
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 99.541
    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: 0.065
    additional property: Energy
      type: PropertyValue
      value: 0.255
    additional property: Speechiness
      type: PropertyValue
      value: 0.039
    additional property: Acousticness
      type: PropertyValue
      value: 0.948
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.611
    additional property: Liveness
      type: PropertyValue
      value: 0.324
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.04
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.3
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Carmen, WD 31 (Highlights Sung in German): Diese Menge, im Gedrange!
  type: MusicRecording
  duration: PT1M9S
  duration ms: 69333
  explicit: false
  by artist: Georges Bizet
  by artist: Jan Rittel
  by artist: Saxon State Opera Chorus, Dresden
  by artist: Staatskapelle Dresden
  by artist: Karl Böhm
  in album: Chorszenen und Konzertchöre in Rundfunkaufnahmen ab 1938
    type: MusicAlbum
    date published: 2018-03-02
  popularity: 1
  genre: classical
  genre: opera
  isrc code: DEAD61703111
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Carmen, WD 31 (Highlights Sung in German): Diese Menge, im Gedrange!
track: Carmen, WD 31 (Highlights Sung in German): Habanera. Ja, die Liebe hat bunte Flügel

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-31T10:07:35+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x004b915f359d5c4d95541434d2757870f19388669f5d230206090085b9b911cd

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 960389

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960389

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD61703111

OTSTimestamp
type: PropertyValue
value: 2026-07-31T10:20:10Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004b915f359d5c4d95541434d2757870f19388669f5d230206090085b9b911cd. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD61703111 — a six-check JSON result.
date published: 2026-07-31T10:20:10Z

Carmen, WD 31 (Highlights Sung in German): Diese Menge, im Gedrange!
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 130.169
additional property: Musical Key
  type: PropertyValue
  value: 11
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.394
additional property: Energy
  type: PropertyValue
  value: 0.335
additional property: Speechiness
  type: PropertyValue
  value: 0.037
additional property: Acousticness
  type: PropertyValue
  value: 0.9
additional property: Instrumentalness
  type: PropertyValue
  value: 0.036
additional property: Liveness
  type: PropertyValue
  value: 0.397
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.447
additional property: Loudness (dB)
  type: PropertyValue
  value: -14.765
additional property: Key Name
  type: PropertyValue
  value: B
additional property: Mode Name
  type: PropertyValue
  value: Major

Carmen, WD 31 (Highlights Sung in German): Habanera. Ja, die Liebe hat bunte Flügel
type: MusicRecording
duration: PT4M4S
duration ms: 244613
explicit: false
by artist: Georges Bizet
by artist: Elisabeth Höngen
by artist: Saxon State Opera Chorus, Dresden
by artist: Staatskapelle Dresden
by artist: Karl Böhm
in album: Chorszenen und Konzertchöre in Rundfunkaufnahmen ab 1938
  type: MusicAlbum
  date published: 2018-03-02
popularity: 1
genre: classical
genre: opera
isrc code: DEAD61703114
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T09:53:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf9d756f56b604565583ad0754228a90a7a0e4f49e53cd1b027e8dab368545ee4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960387
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960387
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD61703114
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T10:06:30Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d756f56b604565583ad0754228a90a7a0e4f49e53cd1b027e8dab368545ee4. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD61703114 — a six-check JSON result.
  date published: 2026-07-31T10:06:30Z
audio: Carmen, WD 31 (Highlights Sung in German): Habanera. Ja, die Liebe hat bunte Flügel
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.91
  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: 0.492
  additional property: Energy
    type: PropertyValue
    value: 0.223
  additional property: Speechiness
    type: PropertyValue
    value: 0.116
  additional property: Acousticness
    type: PropertyValue
    value: 0.961
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.66
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.222
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.596
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Wagner: Der Ring des Nibelungen, WWV 86 (Remastered 2021) [Live]
type: MusicAlbum
date published: 2021-11-05

Mozart, W.A.: Magic Flute (The) [Opera]
type: MusicAlbum
date published: 2005-01-01
track: Die Zauberflöte, K. 620: Ouverture
  type: MusicRecording
  duration: PT6M26S
  duration ms: 386893
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Hermann Thimig
  by artist: Kurt Lieck
  by artist: Josef Greindl
  by artist: Rudolf Schock
  by artist: Hans Hotter
  by artist: Peter Esser
  by artist: Horst Otto Rainer
  by artist: Kathe Moller-Siepermann
  by artist: Wilma Lipp
  by artist: Teresa Stich-Randall
  by artist: Annelies Kupper
  by artist: Elisabeth Lindermeier
  by artist: Hanna Ludwig
  by artist: Hilla Oppel
  by artist: Gisela Litz
  by artist: Kristina Sert
  by artist: Erich Kunz
  by artist: Kurt Marschner
  by artist: Wilhelm Lückert
  by artist: Walter Kreppel
  by artist: Cologne Radio Chorus
  by artist: Cologne Radio Symphony Orchestra
  by artist: Joseph Keilberth
  in album: Mozart, W.A.: Magic Flute (The) [Opera]
    type: MusicAlbum
    date published: 2005-01-01
  popularity: 3
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
  isrc code: US2TL0945001
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T16:22:07+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb79dd0d3a21ef6c892451608f9ba14cb5a88cf3df73c4c90b5f0b4c9de7effd3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957124
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957124
  additional property: OTSVerificationAPI
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2TL0945001
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:53:27Z
  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 0xb79dd0d3a21ef6c892451608f9ba14cb5a88cf3df73c4c90b5f0b4c9de7effd3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US2TL0945001 — a six-check JSON result.
    date published: 2026-07-08T03:53:27Z
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    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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track: Die Zauberflöte, K. 620: Act I: Arie: Der Vogelfanger bin ich ja (Papageno)
  type: MusicRecording
  duration: PT2M25S
  duration ms: 145760
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Hermann Thimig
  by artist: Kurt Lieck
  by artist: Josef Greindl
  by artist: Rudolf Schock
  by artist: Hans Hotter
  by artist: Peter Esser
  by artist: Horst Otto Rainer
  by artist: Kathe Moller-Siepermann
  by artist: Wilma Lipp
  by artist: Teresa Stich-Randall
  by artist: Annelies Kupper
  by artist: Elisabeth Lindermeier
  by artist: Hanna Ludwig
  by artist: Hilla Oppel
  by artist: Gisela Litz
  by artist: Kristina Sert
  by artist: Erich Kunz
  by artist: Kurt Marschner
  by artist: Wilhelm Lückert
  by artist: Walter Kreppel
  by artist: Cologne Radio Chorus
  by artist: Cologne Radio Symphony Orchestra
  by artist: Joseph Keilberth
  in album: Mozart, W.A.: Magic Flute (The) [Opera]
    type: MusicAlbum
    date published: 2005-01-01
  popularity: 4
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
  isrc code: US2TL0945005
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960236
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2TL0945005
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T09:37:10Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ee81aaa65ba1f62accb6f069d633838c5cf71195227d7dd9927285eaf8c67a. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2TL0945005 — a six-check JSON result.
    date published: 2026-07-30T09:37:10Z
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    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
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track: Die Zauberflöte, K. 620: Act II: Terzett: Seid uns zum zweiten Mal willkommen (Drei Knaben)
track: Die Zauberflöte, K. 620: Act II: Finale: Bald prangt, den Morgen zu verkunden - Der, welcher wandert - Papagena! Papagena! Papagena! - Nur stille! Stille! Stille Stille!

Danceability
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value: 0.542

Energy
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Speechiness
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Acousticness
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Instrumentalness
type: PropertyValue
value: 0.002

Liveness
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Valence (Positivity)
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Loudness (dB)
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value: -21.554

Key Name
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Mode Name
type: PropertyValue
value: Major

Die Zauberflöte, K. 620: Act II: Terzett: Seid uns zum zweiten Mal willkommen (Drei Knaben)
type: MusicRecording
duration: PT1M34S
duration ms: 94733
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Hermann Thimig
by artist: Kurt Lieck
by artist: Josef Greindl
by artist: Rudolf Schock
by artist: Hans Hotter
by artist: Peter Esser
by artist: Horst Otto Rainer
by artist: Kathe Moller-Siepermann
by artist: Wilma Lipp
by artist: Teresa Stich-Randall
by artist: Annelies Kupper
by artist: Elisabeth Lindermeier
by artist: Hanna Ludwig
by artist: Hilla Oppel
by artist: Gisela Litz
by artist: Kristina Sert
by artist: Erich Kunz
by artist: Kurt Marschner
by artist: Wilhelm Lückert
by artist: Walter Kreppel
by artist: Cologne Radio Chorus
by artist: Cologne Radio Symphony Orchestra
by artist: Joseph Keilberth
in album: Mozart, W.A.: Magic Flute (The) [Opera]
  type: MusicAlbum
  date published: 2005-01-01
popularity: 3
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: US2TL0945033
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x319c4a529b6b2fc3158b358a6ba7b1d84933620c037f17ff15e35a871f097595
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960435
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2TL0945033
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T16:33:26Z
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 0x319c4a529b6b2fc3158b358a6ba7b1d84933620c037f17ff15e35a871f097595. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2TL0945033 — a six-check JSON result.
  date published: 2026-07-31T16:33:26Z
audio: Die Zauberflöte, K. 620: Act II: Terzett: Seid uns zum zweiten Mal willkommen (Drei Knaben)
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Mode Name
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Die Zauberflöte, K. 620: Act II: Finale: Bald prangt, den Morgen zu verkunden - Der, welcher wandert - Papagena! Papagena! Papagena! - Nur stille! Stille! Stille Stille!
type: MusicRecording
duration: PT31M22S
duration ms: 1882106
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Hermann Thimig
by artist: Kurt Lieck
by artist: Josef Greindl
by artist: Rudolf Schock
by artist: Hans Hotter
by artist: Peter Esser
by artist: Horst Otto Rainer
by artist: Kathe Moller-Siepermann
by artist: Wilma Lipp
by artist: Teresa Stich-Randall
by artist: Annelies Kupper
by artist: Elisabeth Lindermeier
by artist: Hanna Ludwig
by artist: Hilla Oppel
by artist: Gisela Litz
by artist: Kristina Sert
by artist: Erich Kunz
by artist: Kurt Marschner
by artist: Wilhelm Lückert
by artist: Walter Kreppel
by artist: Cologne Radio Chorus
by artist: Cologne Radio Symphony Orchestra
by artist: Joseph Keilberth
in album: Mozart, W.A.: Magic Flute (The) [Opera]
  type: MusicAlbum
  date published: 2005-01-01
popularity: 3
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: US2TL0945043
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe48fbe584a5d3ea8a517534e17e58adc79ffa802fae92a0e69ee887fffacf73b
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960403
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2TL0945043
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48fbe584a5d3ea8a517534e17e58adc79ffa802fae92a0e69ee887fffacf73b. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2TL0945043 — a six-check JSON result.
  date published: 2026-07-31T13:04:34Z
audio: Die Zauberflöte, K. 620: Act II: Finale: Bald prangt, den Morgen zu verkunden - Der, welcher wandert - Papagena! Papagena! Papagena! - Nur stille! Stille! Stille Stille!
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Strauss, R.: Ariadne Auf Naxos [Opera]
type: MusicAlbum
date published: 1954-01-01

Beethoven: Symphony No. 5 in C Minor, Op. 67: I. Allegro con brio
type: MusicRecording
duration: PT8M46S
duration ms: 526560
explicit: false
by artist: Ludwig van Beethoven
by artist: Joseph Keilberth
by artist: Philharmonisches Staatsorchester Hamburg
in album: 40 Most Beautiful Classical Anthems
  type: MusicAlbum
  date published: 2008-12-09
popularity: 10
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: DEA805800101
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T12:14:28+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960105
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA805800101
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T12:35:17Z
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b8be4297b5acfdafd1fdc14995442f61769e138fe9cbe394b5b420aedf0af2. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/DEA805800101 — a six-check JSON result.
  date published: 2026-07-29T12:35:17Z
audio: Beethoven: Symphony No. 5 in C Minor, Op. 67: I. Allegro con brio
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Acousticness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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Der Freischütz - Ouvertüre
type: MusicRecording
duration: PT2M15S
duration ms: 135400
explicit: false
by artist: Carl Maria von Weber
by artist: Joseph Keilberth
by artist: Berliner Philharmoniker
in album: Klassik 100 Meisterwerke: Klassik die man gehört haben muss
  type: MusicAlbum
  date published: 2021-09-25
popularity: 7
genre: classical
genre: opera
isrc code: DEA349601680
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-03T23:00:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9950e396879aa0330fe97a25ea12968e94270f35b820b0e71f944e7d8239a0f0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956856
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349601680
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T01:25:57Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9950e396879aa0330fe97a25ea12968e94270f35b820b0e71f944e7d8239a0f0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA349601680 — a six-check JSON result.
  date published: 2026-07-06T01:25:57Z
audio: Der Freischütz - Ouvertüre
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
    type: PropertyValue
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