Sandrine Piau
type: MusicGroup
description: Sandrine Piau (born 5 June 1965) is a French soprano. She is particularly renowned in Baroque music although also excels in Romantic and modernist art songs. She has the versatility to perform works f
popularity: 23
followers: 170
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x72f88ea4f84ea988dd2c4d1c2c7e04f160592e5ee50a8e775de7480f19ed6655
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3d33cca1-78a3-4ded-b054-bb60b40d2950.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3d33cca1-78a3-4ded-b054-bb60b40d2950.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3d33cca1-78a3-4ded-b054-bb60b40d2950
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x72f88ea4f84ea988dd2c4d1c2c7e04f160592e5ee50a8e775de7480f19ed6655","name":"Sandrine Piau","registered_at":"2026-06-11T17:18:52Z","symbol":"NIM0079989","token_address":"0xe0342676709d2ab131da50e22688da19f5af7459","type":"artist","uuid":"3d33cca1-78a3-4ded-b054-bb60b40d2950"}
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 0x72f88ea4f84ea988dd2c4d1c2c7e04f160592e5ee50a8e775de7480f19ed6655. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3d33cca1-78a3-4ded-b054-bb60b40d2950.json and https://artists.proofprofile.net/proofs/artist/3d33cca1-78a3-4ded-b054-bb60b40d2950.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x72f88ea4f84ea988dd2c4d1c2c7e04f160592e5ee50a8e775de7480f19ed6655","name":"Sandrine Piau","registered_at":"2026-06-11T17:18:52Z","symbol":"NIM0079989","token_address":"0xe0342676709d2ab131da50e22688da19f5af7459","type":"artist","uuid":"3d33cca1-78a3-4ded-b054-bb60b40d2950"}
track: Cum Dederit
  type: MusicRecording
  duration: PT5M3S
  duration ms: 303800
  explicit: false
  by artist: Armand Amar
  by artist: Sandrine Piau
  in album: Home (Original Motion Picture Soundtrack) [Deluxe Version]
    type: MusicAlbum
    date published: 2009-06-05
  popularity: 36
  isrc code: FR86U0900038
  additional property: CopyrightID
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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/953513
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR86U0900038
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T12:47:07Z
  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 0x30a2308a530d8b58a787af3448e0ad1260298363268dfe3e58921451f7054c0d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR86U0900038.
    date published: 2026-06-13T12:47:07Z
  audio: Cum Dederit
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 142.524
    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
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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
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    additional property: Instrumentalness
      type: PropertyValue
      value: 0.009
    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: -20.539
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor