Evgeny Nikitin
type: MusicGroup
genre: opera
popularity: 4
followers: 93
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additional property: OTSVerifyInstructions
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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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  date published: 2026-06-21T06:14:42Z
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track: Lohengrin, WWV 75, Act I: Act I Scene 3: Nun höret mich und achtet wohl (Herald, All The Men, Lohengrin, Friedrich, The King, Elsa, Ortrud, All The Women)
  type: MusicRecording
  duration: PT7M7S
  duration ms: 427026
  explicit: false
  by artist: Richard Wagner
  by artist: Samuel Youn
  by artist: Klaus Florian Vogt
  by artist: Evgeny Nikitin
  by artist: Falk Struckmann
  by artist: Camilla Nylund
  by artist: Katarina Dalayman
  by artist: Netherlands Radio Choir
  by artist: Dutch National Opera Chorus
  by artist: Royal Concertgebouw Orchestra
  by artist: Sir Mark Elder
  in album: Wagner: Lohengrin, WWV 75 (Live)
    type: MusicAlbum
    date published: 2017-03-17
  genre: classical
  genre: opera
  isrc code: NLG761700211
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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
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    date published: 2026-07-31T16:09:41Z
  audio: Lohengrin, WWV 75, Act I: Act I Scene 3: Nun höret mich und achtet wohl (Herald, All The Men, Lohengrin, Friedrich, The King, Elsa, Ortrud, All The Women)
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    additional property: Time Signature
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    additional property: Danceability
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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: Loudness (dB)
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    additional property: Key Name
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      value: Bb
    additional property: Mode Name
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