Valse Fréquence
type: MusicGroup
genre: french indie pop
popularity: 17
followers: 1162
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x51f6dfac8e86dc37ac916acb655513986993e4fdb8f1cd281822f62438176477
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953625
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953625
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2aec53bc-24e0-4e49-a34d-b3ad24695f35.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2aec53bc-24e0-4e49-a34d-b3ad24695f35.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2aec53bc-24e0-4e49-a34d-b3ad24695f35
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T11:37:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x51f6dfac8e86dc37ac916acb655513986993e4fdb8f1cd281822f62438176477","name":"Valse Fréquence","registered_at":"2026-06-14T08:54:21Z","symbol":"NIM0401948","token_address":"0x1c88791e656eedf70a28be2398f4f094651bd2cb","type":"artist","uuid":"2aec53bc-24e0-4e49-a34d-b3ad24695f35"}
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f6dfac8e86dc37ac916acb655513986993e4fdb8f1cd281822f62438176477. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2aec53bc-24e0-4e49-a34d-b3ad24695f35.json and https://artists.proofprofile.net/proofs/artist/2aec53bc-24e0-4e49-a34d-b3ad24695f35.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T11:37:06Z
  text: {"copyright_id":"0x51f6dfac8e86dc37ac916acb655513986993e4fdb8f1cd281822f62438176477","name":"Valse Fréquence","registered_at":"2026-06-14T08:54:21Z","symbol":"NIM0401948","token_address":"0x1c88791e656eedf70a28be2398f4f094651bd2cb","type":"artist","uuid":"2aec53bc-24e0-4e49-a34d-b3ad24695f35"}
album: EP
  type: MusicAlbum
  date published: 2018-05-10
album: Rouge
  type: MusicAlbum
  date published: 2018-05-10
album: Entremêlés
  type: MusicAlbum
  date published: 2020-07-10
album: Ville américaine
  type: MusicAlbum
  date published: 2021-10-06
  track: Ville américaine
    type: MusicRecording
    duration: PT3M11S
    duration ms: 191013
    explicit: false
    by artist: Valse Fréquence
    in album: Ville américaine
      type: MusicAlbum
      date published: 2021-10-06
    genre: french indie pop
    isrc code: CAJSV2100001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T12:17:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc45d7f5e894b53bb65c0d3f3e9114737855cdaf881f512aac8c3e23e222229f9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959009
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959009
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJSV2100001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T13:14:47Z
    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 0xc45d7f5e894b53bb65c0d3f3e9114737855cdaf881f512aac8c3e23e222229f9. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T13:14:47Z), 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/CAJSV2100001 — a six-check JSON result.
      date published: 2026-07-21T13:14:47Z
    audio: Ville américaine
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 148.229
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.468
      additional property: Energy
        type: PropertyValue
        value: 0.58
      additional property: Speechiness
        type: PropertyValue
        value: 0.027
      additional property: Acousticness
        type: PropertyValue
        value: 0.302
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.092
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.391
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.046
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Jamais t'oublier
  type: MusicAlbum
  date published: 2023-04-13
album: Mirage
  type: MusicAlbum
  date published: 2023-05-30
album: Tache d'encre
  type: MusicAlbum
  date published: 2023-08-17
album: Jamais t'oublier
  type: MusicAlbum
  date published: 2023-11-03
album: Bedroom Sessions
  type: MusicAlbum
  date published: 2024-05-10
  track: Mirage
    type: MusicRecording
    duration: PT3M13S
    duration ms: 193090
    explicit: false
    by artist: Valse Fréquence
    in album: Bedroom Sessions
      type: MusicAlbum
      date published: 2024-05-10
    genre: french indie pop
    isrc code: CAJSV2400001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-30T04:10:00+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xaac00440ed48f74f0ae3b7dee3fde87e756f84c13dfaafd05eafeec9de65ea89
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956375
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956375
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJSV2400001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T16:51:38Z
    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 0xaac00440ed48f74f0ae3b7dee3fde87e756f84c13dfaafd05eafeec9de65ea89. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CAJSV2400001 — a six-check JSON result.
      date published: 2026-07-02T16:51:38Z
    audio: Mirage
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 124.986
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.58

Energy
type: PropertyValue
value: 0.372

Speechiness
type: PropertyValue
value: 0.03

Acousticness
type: PropertyValue
value: 0.468

Instrumentalness
type: PropertyValue
value: 0.019

Liveness
type: PropertyValue
value: 0.173

Valence (Positivity)
type: PropertyValue
value: 0.315

Loudness (dB)
type: PropertyValue
value: -11.108

Key Name
type: PropertyValue
value: B

Mode Name
type: PropertyValue
value: Minor