Les Filles & Christopher
type: MusicGroup
genre: french indie pop
genre: french pop
popularity: 29
followers: 569
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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. 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 0xfa1e88c99738b3c16c22e001880ea3b42a967ab4327125ee55b0d33820535cdf. 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/1c821a66-c08e-4bb9-92bb-a87f350d176a.json and https://artists.proofprofile.net/proofs/artist/1c821a66-c08e-4bb9-92bb-a87f350d176a.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-12T19:24:56Z
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album: Disque d'or
  type: MusicAlbum
  date published: 2020-09-15
album: Disque d'or
  type: MusicAlbum
  date published: 2020-09-15
album: Disque d'or
  type: MusicAlbum
  date published: 2020-09-15
album: Tattoo
  type: MusicAlbum
  date published: 2020-10-10
album: Tattoo
  type: MusicAlbum
  date published: 2020-10-10
album: Tattoo
  type: MusicAlbum
  date published: 2020-10-10
album: San Francisco
  type: MusicAlbum
  date published: 2020-11-10
album: San Francisco
  type: MusicAlbum
  date published: 2020-11-10
album: San Francisco
  type: MusicAlbum
  date published: 2020-11-10
album: A l'imparfait
  type: MusicAlbum
  date published: 2020-12-10
album: A l'imparfait
  type: MusicAlbum
  date published: 2020-12-10
album: A l'imparfait
  type: MusicAlbum
  date published: 2020-12-10
album: Ice Cream
  type: MusicAlbum
  date published: 2021-03-25
album: Ice Cream
  type: MusicAlbum
  date published: 2021-03-25
album: Ice Cream
  type: MusicAlbum
  date published: 2021-03-25
album: Off
  type: MusicAlbum
  date published: 2021-05-13
album: Off
  type: MusicAlbum
  date published: 2021-05-13
album: Off
  type: MusicAlbum
  date published: 2021-05-13
album: Amoureuse
  type: MusicAlbum
  date published: 2025-02-20
album: Amoureuse
  type: MusicAlbum
  date published: 2025-02-20
album: Something special about us
  type: MusicAlbum
  date published: 2025-04-03
album: Something special about us
  type: MusicAlbum
  date published: 2025-04-03
album: Baiser volé
  type: MusicAlbum
  date published: 2025-07-31
album: Surf
  type: MusicAlbum
  date published: 2025-10-10
track: Chaleur épique sous les tropiques - Remix
  type: MusicRecording
  duration: PT2M40S
  duration ms: 160498
  explicit: false
  by artist: AGAV
  by artist: Mathilde Ollivier
  by artist: Les Filles & Christopher
  in album: Chaleur épique sous les tropiques ( Remix)
    type: MusicAlbum
    date published: 2021-11-05
  isrc code: TCAFU2197483
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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 0x26df3945404247aecec58349f9055813d55f03f1497a86c2f0edb0ca96115166. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFU2197483 — a six-check JSON result.
    date published: 2026-06-13T12:47:07Z
  audio: Chaleur épique sous les tropiques - Remix
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 128.206
    additional property: Musical Key
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      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.7
    additional property: Energy
      type: PropertyValue
      value: 0.635
    additional property: Speechiness
      type: PropertyValue
      value: 0.03
    additional property: Acousticness
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      value: 0.131
    additional property: Instrumentalness
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      value: 0.027
    additional property: Liveness
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      value: 0.477
    additional property: Valence (Positivity)
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      value: 0.734
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.927
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Minor