Timo van Lierop
type: MusicGroup
popularity: 7
followers: 223
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9f92aa662c89c64a2b8b15626bd8dd0a3b6535a4785d5a5586d58c73165d53f3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4ea9f8be-2316-42b2-8171-bcff742d9f20.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4ea9f8be-2316-42b2-8171-bcff742d9f20.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4ea9f8be-2316-42b2-8171-bcff742d9f20
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9f92aa662c89c64a2b8b15626bd8dd0a3b6535a4785d5a5586d58c73165d53f3","name":"Timo van Lierop","registered_at":"2026-06-16T16:56:37Z","symbol":"NIM1116039","token_address":"0xead283707c79c2eb491d96f41001700c8965e603","type":"artist","uuid":"4ea9f8be-2316-42b2-8171-bcff742d9f20"}
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 0x9f92aa662c89c64a2b8b15626bd8dd0a3b6535a4785d5a5586d58c73165d53f3. 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/4ea9f8be-2316-42b2-8171-bcff742d9f20.json and https://artists.proofprofile.net/proofs/artist/4ea9f8be-2316-42b2-8171-bcff742d9f20.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x9f92aa662c89c64a2b8b15626bd8dd0a3b6535a4785d5a5586d58c73165d53f3","name":"Timo van Lierop","registered_at":"2026-06-16T16:56:37Z","symbol":"NIM1116039","token_address":"0xead283707c79c2eb491d96f41001700c8965e603","type":"artist","uuid":"4ea9f8be-2316-42b2-8171-bcff742d9f20"}
album: Under a Tree
  type: MusicAlbum
  date published: 2020-02-01
album: Home Recordings EP
  type: MusicAlbum
  date published: 2021-03-19
album: Try Again
  type: MusicAlbum
  date published: 2023-01-01
album: Earth Tones
  type: MusicAlbum
  date published: 2023-12-15
  track: House by the Sea
    type: MusicRecording
    duration: PT2M54S
    duration ms: 174403
    explicit: false
    by artist: Timo van Lierop
    in album: Earth Tones
      type: MusicAlbum
      date published: 2023-12-15
    isrc code: TCAHP2360450
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T15:18:37+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa1efd35549ff04dc3cb01ce6585abdded2a3a55a13d01108ceaeaf02f68b727f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958169
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958169
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAHP2360450
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T16:16:18Z
    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 0xa1efd35549ff04dc3cb01ce6585abdded2a3a55a13d01108ceaeaf02f68b727f. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/TCAHP2360450.
      date published: 2026-07-15T16:16:18Z
    audio: House by the Sea
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.978
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.626
      additional property: Energy
        type: PropertyValue
        value: 0.867
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.039
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.109
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.757
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.803
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Mind Bender
  type: MusicAlbum
  date published: 2025-05-23