Huguette Dreyfus
type: MusicGroup
description: thumb|Dreyfus (May 2006) Pauline Huguette Dreyfus (30 November 1928 – 16 May 2016) was a French harpsichordist. Biography Dreyfus was born in Mulhouse, Alsace, France, on 30 November 1928 to Fernan
popularity: 2
followers: 232
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xa30803655e6a6ed809cfdf92893bbdf67a8265422fa58172c14046e6c6e34047
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954031
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3b2bab0f-82e5-4c8b-a2e3-2ca41abd632b.ots
additional property: OTSRecordURL
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  value: https://artists.proofprofile.net/proofs/artist/3b2bab0f-82e5-4c8b-a2e3-2ca41abd632b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3b2bab0f-82e5-4c8b-a2e3-2ca41abd632b
additional property: OTSTimestamp
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  value: 2026-06-17T01:43:23Z
additional property: OTSCanonicalRecord
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  value: {"copyright_id":"0xa30803655e6a6ed809cfdf92893bbdf67a8265422fa58172c14046e6c6e34047","name":"Huguette Dreyfus","registered_at":"2026-06-16T10:11:47Z","symbol":"NIM1019475","token_address":"0x5a3b5fdbadaa59ab71db96357b34a37ff3733672","type":"artist","uuid":"3b2bab0f-82e5-4c8b-a2e3-2ca41abd632b"}
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 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 0xa30803655e6a6ed809cfdf92893bbdf67a8265422fa58172c14046e6c6e34047. Chain 2 (Bitcoin): anchored in block 954031 (2026-06-17T01:43:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3b2bab0f-82e5-4c8b-a2e3-2ca41abd632b.json and https://artists.proofprofile.net/proofs/artist/3b2bab0f-82e5-4c8b-a2e3-2ca41abd632b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T01:43:23Z
  text: {"copyright_id":"0xa30803655e6a6ed809cfdf92893bbdf67a8265422fa58172c14046e6c6e34047","name":"Huguette Dreyfus","registered_at":"2026-06-16T10:11:47Z","symbol":"NIM1019475","token_address":"0x5a3b5fdbadaa59ab71db96357b34a37ff3733672","type":"artist","uuid":"3b2bab0f-82e5-4c8b-a2e3-2ca41abd632b"}
track: Eine Geigerfamilie
  type: MusicRecording
  duration: PT4M30S
  duration ms: 270680
  explicit: false
  by artist: Arcangelo Corelli
  by artist: Will Quadflieg
  by artist: Solisti dell'orchestra "Scarlatti" Napoli
  by artist: Ettore Gracis
  by artist: Eduard Melkus
  by artist: Garo Atmacayan
  by artist: Huguette Dreyfus
  in album: Wir entdecken Komponisten: Antonio Vivaldi – Frühling, Sommer, Herbst und Winter
    type: MusicAlbum
    date published: 1984-01-01
  genre: classical
  genre: early-music
  genre: baroque
  genre: italian-baroque
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  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/DEF058331202
  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 0x266d7f4c417ea60e3fb537a232df06e5c6859d66a02ed62278fa2a2e428d75f0. 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/DEF058331202.
    date published: 2026-07-08T03:20:19Z
  audio: Eine Geigerfamilie
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 103.326
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
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    additional property: Energy
      type: PropertyValue
      value: 0.19
    additional property: Speechiness
      type: PropertyValue
      value: 0.847
    additional property: Acousticness
      type: PropertyValue
      value: 0.878
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.473
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.181
    additional property: Loudness (dB)
      type: PropertyValue
      value: -23.94
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major