Floris van Vliet
type: MusicGroup
popularity: 5
followers: 66
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x202ca6ddfc4d0ae5ebf90e462680eba284669119c1250f0069f1c1e40df88a09
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954618
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954618
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c83712fe-40ae-4f5e-a5f2-60c7cae07bae.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c83712fe-40ae-4f5e-a5f2-60c7cae07bae.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c83712fe-40ae-4f5e-a5f2-60c7cae07bae
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:05:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x202ca6ddfc4d0ae5ebf90e462680eba284669119c1250f0069f1c1e40df88a09","name":"Floris van Vliet","registered_at":"2026-06-20T22:12:21Z","symbol":"NIM1726611","token_address":"0x9d1a3a452da6ed7c91be93e182e73a9a7d8b1964","type":"artist","uuid":"c83712fe-40ae-4f5e-a5f2-60c7cae07bae"}
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 0x202ca6ddfc4d0ae5ebf90e462680eba284669119c1250f0069f1c1e40df88a09. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c83712fe-40ae-4f5e-a5f2-60c7cae07bae.json and https://artists.proofprofile.net/proofs/artist/c83712fe-40ae-4f5e-a5f2-60c7cae07bae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:05:13Z
  text: {"copyright_id":"0x202ca6ddfc4d0ae5ebf90e462680eba284669119c1250f0069f1c1e40df88a09","name":"Floris van Vliet","registered_at":"2026-06-20T22:12:21Z","symbol":"NIM1726611","token_address":"0x9d1a3a452da6ed7c91be93e182e73a9a7d8b1964","type":"artist","uuid":"c83712fe-40ae-4f5e-a5f2-60c7cae07bae"}
album: Halcyon
  type: MusicAlbum
  date published: 2024-10-07
  track: Elara
    type: MusicRecording
    duration: PT2M8S
    duration ms: 128354
    explicit: false
    by artist: Floris van Vliet
    in album: Halcyon
      type: MusicAlbum
      date published: 2024-10-07
    isrc code: AEA2Z2484691
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T12:03:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3abfe4cb0141afdd9a38c213b748cc8ef0cb93012d4e0c2079bb9330d203f7f0
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958157
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958157
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AEA2Z2484691
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T15:04:56Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3abfe4cb0141afdd9a38c213b748cc8ef0cb93012d4e0c2079bb9330d203f7f0. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:04:56Z), 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/AEA2Z2484691.
      date published: 2026-07-15T15:04:56Z
    audio: Elara
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 74.661
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.659
      additional property: Energy
        type: PropertyValue
        value: 0.058
      additional property: Speechiness
        type: PropertyValue
        value: 0.044
      additional property: Acousticness
        type: PropertyValue
        value: 0.99
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.959
      additional property: Liveness
        type: PropertyValue
        value: 0.104
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.367
      additional property: Loudness (dB)
        type: PropertyValue
        value: -19.716
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major