James Kok
type: MusicGroup
genre: dark cabaret
genre: swing music
description: Arthur James Kok (January 24, 1902, Czernowitz - October 18, 1976, Berlin) was a Romanian bandleader, violinist, and arranger. He led dance bands that played light music and jazz. Kok learned to play
popularity: 5
followers: 369
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  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 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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album: Es gibt nur ein Berlin … Die Lieder von Willi Kollo in Originalaufnahmen (1927-1946)
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  date published: 2013-07-02
  track: Lieber Leierkastenmann
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    by artist: Kleines Ensemble
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      date published: 2013-07-02
    popularity: 1
    genre: vintage-schlager
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-31T18:48:12Z
    audio: Lieber Leierkastenmann
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  track: Jetzt geht's der Dolly gut
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      date published: 2013-07-02
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    genre: vintage-schlager
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-31T10:20:10Z
    audio: Jetzt geht's der Dolly gut
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  track: Schreib' mir mal 'ne Karte
  track: Wir tanzen um die Welt: Einmal wirst du wieder bei mir sein
  track: Zwei in einer grossen Stadt: Zwei in einer grossen Stadt
  track: Es gibt nur ein Berlin
album: “Musik hat mich verliebt gemacht” und andere Gerhard Winkler-Hits (Vol. 2) im Originalsound 1935 bis 1941
album: Capri-Fischer (1935-1943)
album: Tanzdielen und Vergnügungspaläste, Vol. 1
album: Swing Tanzen Verboten - Unerwünschte Musik Vol. 2
album: The Golden Era of the German Dance Orchestra: Wenn im Tanzcafe Musik erklingt (1934-1942)
album: Berliner Tanzcafé (Das Beste der Deutschen Tanzorchester)
album: Tanz und Swing in der Mondschein-Bar (Das Beste der Deutschen Tanzorchester)
album: Immer Wieder Tanzen Vol. 3
album: Eine Gala-Nacht mit Tanzorchester
album: Goldene Zeit Der Deutschen Schlager- Und Filmmusik Vol. 8 (16/20)
album: Grosse Orchester Der 40 er Jahre - Orchestras Of The 40´ies - Big Bands
album: Swing Tanzen Verboten - Volume 4
album: Schellack Schätze - Treasures on 78 rpm from Berlin, Europe and the world, Vol. 42
album: Die Besten Schlager der Goldenen 20er & 30er Jahre, Vol. 8
album: Die Besten Schlager der Goldenen 20er & 30er Jahre, Vol. 6
album: Bei zartlicher Musik … Die schonsten Melodien von Gerhard Mohr im Originalsound der 30er Jahre
album: Immer Wieder Tanzen Vol. 2
album: Retro German Dance Hits Vol. 03
album: Jazznocrazy
album: James Kok / Die Großen Tanzorchester Von 1930 - 1950
album: Pacific Express
album: Wir Gratulieren! Zum Geburtstag
album: Retro German Dance Hits Vol. 02
album: Retro German Dance Hits Vol. 11
album: Die besten Schlager der goldenen 20er & 30er Jahre, Vol. 9

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Schreib' mir mal 'ne Karte
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duration: PT2M57S
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by artist: Paul Dorn
by artist: Erhard Bauschke Dance Orchestra
by artist: Erhard Bauschke
in album: Es gibt nur ein Berlin … Die Lieder von Willi Kollo in Originalaufnahmen (1927-1946)
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  date published: 2013-07-02
popularity: 7
genre: vintage-schlager
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T06:56:49Z
audio: Schreib' mir mal 'ne Karte
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Wir tanzen um die Welt: Einmal wirst du wieder bei mir sein
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genre: vintage-schlager
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T11:07:37Z
audio: Wir tanzen um die Welt: Einmal wirst du wieder bei mir sein
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Zwei in einer grossen Stadt: Zwei in einer grossen Stadt
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genre: vintage-schlager
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Zwei in einer grossen Stadt: Zwei in einer grossen Stadt
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Es gibt nur ein Berlin
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  date published: 2013-07-02
popularity: 2
genre: vintage-schlager
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71ffa90c53ac13bf7e101a758dfacc98a7a02347238d2bbcd9cfc3d8a98921d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEL111301218.
  date published: 2026-07-08T03:20:19Z
audio: Es gibt nur ein Berlin
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  additional property: Danceability
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  additional property: Loudness (dB)
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“Musik hat mich verliebt gemacht” und andere Gerhard Winkler-Hits (Vol. 2) im Originalsound 1935 bis 1941
type: MusicAlbum
date published: 2013-03-05

Capri-Fischer (1935-1943)
type: MusicAlbum
date published: 2013-03-05
track: Capri-Fischer
  type: MusicRecording
  duration: PT3M15S
  duration ms: 195613
  explicit: false
  by artist: Gerhard Winkler
  by artist: Rudi Schuricke
  by artist: Waldo Favre Chorus
  by artist: Orchester des Plaza-Varietes
  by artist: Theo Knobel
  in album: Capri-Fischer (1935-1943)
    type: MusicAlbum
    date published: 2013-03-05
  popularity: 13
  genre: schlager
  isrc code: DEL111200838
  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: OTSVerificationAPI
    type: PropertyValue
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  additional property: OTSTimestamp
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    value: 2026-07-02T03:30:09Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985262e0a6d4e591825e3b3afe2080a211fe817375fb12b02813ce05c64de339. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEL111200838.
    date published: 2026-07-02T03:30:09Z
  audio: Capri-Fischer
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Valence (Positivity)
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track: So allein, schöne Frau? (Swing Fox)
  type: MusicRecording
  duration: PT2M35S
  duration ms: 155106
  explicit: false
  by artist: Gerhard Winkler
  by artist: Horst Winter
  by artist: Ernst Van't Hoff Dance Orchestra
  by artist: Ernst van t´Hoff
  in album: Capri-Fischer (1935-1943)
    type: MusicAlbum
    date published: 2013-03-05
  popularity: 0
  genre: schlager
  isrc code: DEL111200848
  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7c03b4c761a854785e330e84dd96b8dae25589c80bc63824c030038703dc65. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEL111200848.
    date published: 2026-07-31T12:24:41Z
  audio: So allein, schöne Frau? (Swing Fox)
    type: AudioObject
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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Tanzdielen und Vergnügungspaläste, Vol. 1
type: MusicAlbum
date published: 2013-10-18
track: Du bist mir so sympathisch
  type: MusicRecording
  duration: PT2M23S
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  explicit: false
  by artist: Egon Kaiser
  in album: Tanzdielen und Vergnügungspaläste, Vol. 1
    type: MusicAlbum
    date published: 2013-10-18
  popularity: 1
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  additional property: OTSBitcoinBlock
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  additional property: OTSVerificationAPI
    type: PropertyValue
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  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T15:59:18Z
  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 0x2c7dafad46bc2cb44b6e153106fc38d16b18ed350454271e8c7dc1b3e13aa546. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEBL60539210.
    date published: 2026-07-31T15:59:18Z
  audio: Du bist mir so sympathisch
    type: AudioObject
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    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
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    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
      value: 0.946
    additional property: Instrumentalness
      type: PropertyValue
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    additional property: Liveness
      type: PropertyValue
      value: 0.107
    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.453
    additional property: Key Name
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      value: F
    additional property: Mode Name
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      value: Major
track: Bel Ami
  type: MusicRecording
  duration: PT2M43S
  duration ms: 163306
  explicit: false
  by artist: John Abriani
  in album: Tanzdielen und Vergnügungspaläste, Vol. 1
    type: MusicAlbum
    date published: 2013-10-18
  popularity: 3
  genre: big-band
  genre: swing-music
  isrc code: DEBL60539211
  additional property: CopyrightID
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  additional property: CopyrightChainExplorerURL
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    value: https://blockstream.info/api/block-height/960360
  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b1051a473d9c8eeccc520e08bbb6e279637ca3ea3346de69898da41d5d4888. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEBL60539211.
    date published: 2026-07-31T06:42:11Z
  audio: Bel Ami
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
      value: 0.029
    additional property: Acousticness
      type: PropertyValue
      value: 0.972
    additional property: Instrumentalness
      type: PropertyValue
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    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
      type: PropertyValue
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    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.532
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
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track: Die ganze Welt ist himmelblau
  type: MusicRecording
  duration: PT2M58S
  duration ms: 178240
  explicit: false
  by artist: Sid Kay's
  in album: Tanzdielen und Vergnügungspaläste, Vol. 1
    type: MusicAlbum
    date published: 2013-10-18
  popularity: 1
  isrc code: DEBL60539216
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  additional property: CopyrightStatus
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSHash
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  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Die ganze Welt ist himmelblau
track: Schwingende Rhythmen
track: Und die ganze Welt spricht von Nanette
track: Memory

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

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEBL60539216

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

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dbd621ce6bf343fa6b849b77d3f7e5c50b54cf03b25ff447e7c64b025b011ca. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEBL60539216.
date published: 2026-07-08T03:20:19Z

Die ganze Welt ist himmelblau
type: AudioObject
additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.647
additional property: Energy
  type: PropertyValue
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additional property: Speechiness
  type: PropertyValue
  value: 0.028
additional property: Acousticness
  type: PropertyValue
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additional property: Instrumentalness
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additional property: Liveness
  type: PropertyValue
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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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Schwingende Rhythmen
type: MusicRecording
duration: PT2M47S
duration ms: 167093
explicit: false
by artist: Juan Llossas
in album: Tanzdielen und Vergnügungspaläste, Vol. 1
  type: MusicAlbum
  date published: 2013-10-18
popularity: 0
isrc code: DEBL60539219
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b0ee9da18b77af105cdde6a2502b560af67110ba78a46f7424bacb91627d78. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEBL60539219.
  date published: 2026-07-08T03:20:19Z
audio: Schwingende Rhythmen
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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Swing Tanzen Verboten - Unerwünschte Musik Vol. 2
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The Golden Era of the German Dance Orchestra: Wenn im Tanzcafe Musik erklingt (1934-1942)
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Berliner Tanzcafé (Das Beste der Deutschen Tanzorchester)
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Tanz und Swing in der Mondschein-Bar (Das Beste der Deutschen Tanzorchester)
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Immer Wieder Tanzen Vol. 3
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Eine Gala-Nacht mit Tanzorchester
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Goldene Zeit Der Deutschen Schlager- Und Filmmusik Vol. 8 (16/20)
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Grosse Orchester Der 40 er Jahre - Orchestras Of The 40´ies - Big Bands
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Swing Tanzen Verboten - Volume 4
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Schellack Schätze - Treasures on 78 rpm from Berlin, Europe and the world, Vol. 42
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Die Besten Schlager der Goldenen 20er & 30er Jahre, Vol. 8
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Die Besten Schlager der Goldenen 20er & 30er Jahre, Vol. 6
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Bei zartlicher Musik … Die schonsten Melodien von Gerhard Mohr im Originalsound der 30er Jahre
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Immer Wieder Tanzen Vol. 2
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Retro German Dance Hits Vol. 03
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Es gibt nur ein Berlin … Die Lieder von Willi Kollo in Originalaufnahmen (1927-1946)
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  subject of: OpenTimestamps Proof of Existence
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date published: 2026-07-31T12:24:41Z

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James Kok / Die Großen Tanzorchester Von 1930 - 1950
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Pacific Express
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Wir Gratulieren! Zum Geburtstag
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960117
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA371125849
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T14:28:24Z
  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 0xe510afc4f8d72755b1cd8cf5967310c9acdab4616d72725c9325e41a5f18bc43. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA371125849.
    date published: 2026-07-29T14:28:24Z
  audio: Du hast Geburtstag
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 116.291
    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: 0.876
    additional property: Energy
      type: PropertyValue
      value: 0.441
    additional property: Speechiness
      type: PropertyValue
      value: 0.039
    additional property: Acousticness
      type: PropertyValue
      value: 0.526
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.219
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.915
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.64
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major

Retro German Dance Hits Vol. 02
type: MusicAlbum
date published: 2022-05-03

Retro German Dance Hits Vol. 11
type: MusicAlbum
date published: 2022-05-10

Die besten Schlager der goldenen 20er & 30er Jahre, Vol. 9
type: MusicAlbum
date published: 2019-05-03