Francesca van Keeken
type: MusicGroup
popularity: 21
followers: 681
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x90b8b96355dc7d9aaa20d11d11e0864edd27c8388c76618959eab14b46023217
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/fd206d30-67d3-4dd7-a8b2-88f560710295.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fd206d30-67d3-4dd7-a8b2-88f560710295.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fd206d30-67d3-4dd7-a8b2-88f560710295
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x90b8b96355dc7d9aaa20d11d11e0864edd27c8388c76618959eab14b46023217","name":"Francesca van Keeken","registered_at":"2026-06-12T14:28:42Z","symbol":"NIM0325608","token_address":"0xc3467b753a7918fcf462725e321d8bd2742bfd77","type":"artist","uuid":"fd206d30-67d3-4dd7-a8b2-88f560710295"}
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 0x90b8b96355dc7d9aaa20d11d11e0864edd27c8388c76618959eab14b46023217. 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/fd206d30-67d3-4dd7-a8b2-88f560710295.json and https://artists.proofprofile.net/proofs/artist/fd206d30-67d3-4dd7-a8b2-88f560710295.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x90b8b96355dc7d9aaa20d11d11e0864edd27c8388c76618959eab14b46023217","name":"Francesca van Keeken","registered_at":"2026-06-12T14:28:42Z","symbol":"NIM0325608","token_address":"0xc3467b753a7918fcf462725e321d8bd2742bfd77","type":"artist","uuid":"fd206d30-67d3-4dd7-a8b2-88f560710295"}
album: Sorry
  type: MusicAlbum
  date published: 2024-02-06
album: Love to Lie
  type: MusicAlbum
  date published: 2024-05-24
album: Better
  type: MusicAlbum
  date published: 2025-01-24
album: Distance
  type: MusicAlbum
  date published: 2025-03-07
album: With You
  type: MusicAlbum
  date published: 2025-05-23
album: What Goes Around
  type: MusicAlbum
  date published: 2025-07-11
  track: What Goes Around
    type: MusicRecording
    duration: PT2M34S
    duration ms: 154285
    explicit: false
    by artist: Francesca van Keeken
    in album: What Goes Around
      type: MusicAlbum
      date published: 2025-07-11
    isrc code: TCAJT2596237
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T00:55:06+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe3ab89e15bdc67c0f3b5c661875133164bbff3c939777085dc19c48b1dbb2fb6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958476
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958476
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJT2596237
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T01:26:56Z
    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 0xe3ab89e15bdc67c0f3b5c661875133164bbff3c939777085dc19c48b1dbb2fb6. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/TCAJT2596237.
      date published: 2026-07-18T01:26:56Z
    audio: What Goes Around
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 111.937
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.627
      additional property: Energy
        type: PropertyValue
        value: 0.803
      additional property: Speechiness
        type: PropertyValue
        value: 0.062
      additional property: Acousticness
        type: PropertyValue
        value: 0.012
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.12
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.238
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.522
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 3:00 Am
  type: MusicAlbum
  date published: 2025-09-26