Klaus Knubben
type: MusicGroup
popularity: 3
followers: 7
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSProofURL
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additional property: OTSVerificationAPI
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d2bc24691d958cb5142d52b664c6a07ec1b4bb6ab89c9fd47cd34041e400e8. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/679f4c81-ed8e-4a33-8e11-67ff6ec03574.json and https://artists.proofprofile.net/proofs/artist/679f4c81-ed8e-4a33-8e11-67ff6ec03574.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
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album: Durante, Hammerschmidt & Others: Choral Works
  type: MusicAlbum
  date published: 2023-03-24
album: Jesu, meine Freude: Greatest Choral Masterpieces
  type: MusicAlbum
  date published: 2014-03-01
album: Sacred Masterpieces Stuttgart Gachinger Kantorei, Stuttgart Bach Collegium, Rilling
  type: MusicAlbum
  date published: 2018-01-05
album: Classical Essentials, Vol. 1
  type: MusicAlbum
  date published: 2018-11-16
  track: Te Deum, H. 146: No. 1, Prelude
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    duration: PT2M4S
    duration ms: 124800
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    by artist: Marc-Antoine Charpentier
    by artist: National Philharmonic Orchestra
    by artist: Charles Gerhardt
    in album: Classical Essentials, Vol. 1
      type: MusicAlbum
      date published: 2018-11-16
    popularity: 23
    genre: classical
    genre: early-music
    genre: baroque
    genre: french-baroque
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    additional property: OTSBitcoinBlockVerifyURL
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      value: https://blockstream.info/api/block-height/956302
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD61820610
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad6fa486f2710266a182d9f6525c483f2fa31e7b5dc078361e4d89aef7b95121. 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/DEAD61820610.
      date published: 2026-07-02T03:30:09Z
    audio: Te Deum, H. 146: No. 1, Prelude
      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)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
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      additional property: Energy
        type: PropertyValue
        value: 0.273
      additional property: Speechiness
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      additional property: Acousticness
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      additional property: Instrumentalness
        type: PropertyValue
        value: 0.894
      additional property: Liveness
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        value: 0.245
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.557
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.4
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Mozart: Mass No. 11 in C Major, "Credo" / Te Deum Laudamus / Regina Coeli
  type: MusicAlbum
  date published: 2004-01-01
album: Mozart: Sacred Works
  type: MusicAlbum
  date published: 2020-09-18
album: 100 Sacred Choral Masterpieces
  type: MusicAlbum
  date published: 2018-05-04
album: Klassische Musik in Baden-Württemberg, Vol. 2
  type: MusicAlbum
  date published: 1992