Hans Francken
type: MusicGroup
popularity: 9
followers: 260
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa9521cd9b43d5baddb1d091104bebdae84b16999d8eab9c5762d52439bdea920
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/69c07158-9d63-4182-b204-7287a99ffa08.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/69c07158-9d63-4182-b204-7287a99ffa08.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/69c07158-9d63-4182-b204-7287a99ffa08
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa9521cd9b43d5baddb1d091104bebdae84b16999d8eab9c5762d52439bdea920","name":"Hans Francken","registered_at":"2026-06-17T02:31:26Z","symbol":"NIM1253189","token_address":"0x0ef66a96f01ce1444644d2ad949e879d1cfc74ea","type":"artist","uuid":"69c07158-9d63-4182-b204-7287a99ffa08"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9521cd9b43d5baddb1d091104bebdae84b16999d8eab9c5762d52439bdea920. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/69c07158-9d63-4182-b204-7287a99ffa08.json and https://artists.proofprofile.net/proofs/artist/69c07158-9d63-4182-b204-7287a99ffa08.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xa9521cd9b43d5baddb1d091104bebdae84b16999d8eab9c5762d52439bdea920","name":"Hans Francken","registered_at":"2026-06-17T02:31:26Z","symbol":"NIM1253189","token_address":"0x0ef66a96f01ce1444644d2ad949e879d1cfc74ea","type":"artist","uuid":"69c07158-9d63-4182-b204-7287a99ffa08"}
album: When Feeling Blue
  type: MusicAlbum
  date published: 2020-11-19
  track: When Feeling Blue
    type: MusicRecording
    duration: PT2M24S
    duration ms: 144033
    explicit: false
    by artist: Hans Francken
    in album: When Feeling Blue
      type: MusicAlbum
      date published: 2020-11-19
    isrc code: BEC432000070
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T16:37:17+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x72212f9dfd647ffa364d505fa2a66079cd09c7f40e7987c6ba4300673ef674ca
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958176
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958176
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEC432000070
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T19:39:33Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72212f9dfd647ffa364d505fa2a66079cd09c7f40e7987c6ba4300673ef674ca. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:39:33Z), 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/BEC432000070.
      date published: 2026-07-15T19:39:33Z
    audio: When Feeling Blue
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 74.955
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.531
      additional property: Energy
        type: PropertyValue
        value: 0.078
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.975
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.924
      additional property: Liveness
        type: PropertyValue
        value: 0.112
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.157
      additional property: Loudness (dB)
        type: PropertyValue
        value: -19.843
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: When Feeling Blue
  type: MusicAlbum
  date published: 2020-11-19
album: When It Snows In November
  type: MusicAlbum
  date published: 2020-12-24
album: When It Snows In November
  type: MusicAlbum
  date published: 2020-12-24
album: When Spring Is Coming
  type: MusicAlbum
  date published: 2021-01-21
album: When Spring Is Coming
  type: MusicAlbum
  date published: 2021-01-21
album: When The Evening Turns Yellow
  type: MusicAlbum
  date published: 2021-02-18