Bertus Velde
type: MusicGroup
popularity: 3
followers: 122
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe7a94dec53d7581a8c6ebcf955fc3d70534c649db7a193721bc5ff1cecf6409a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953968
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953968
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/27f13387-5063-4bb1-af85-fb4e05b8d236.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/27f13387-5063-4bb1-af85-fb4e05b8d236.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/27f13387-5063-4bb1-af85-fb4e05b8d236
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:01:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe7a94dec53d7581a8c6ebcf955fc3d70534c649db7a193721bc5ff1cecf6409a","name":"Bertus Velde","registered_at":"2026-06-16T03:44:58Z","symbol":"NIM0927100","token_address":"0x9370ec37844c3aaa6b5a2b891171758853711999","type":"artist","uuid":"27f13387-5063-4bb1-af85-fb4e05b8d236"}
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 0xe7a94dec53d7581a8c6ebcf955fc3d70534c649db7a193721bc5ff1cecf6409a. Chain 2 (Bitcoin): anchored in block 953968 (2026-06-16T16:01:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/27f13387-5063-4bb1-af85-fb4e05b8d236.json and https://artists.proofprofile.net/proofs/artist/27f13387-5063-4bb1-af85-fb4e05b8d236.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:01:49Z
  text: {"copyright_id":"0xe7a94dec53d7581a8c6ebcf955fc3d70534c649db7a193721bc5ff1cecf6409a","name":"Bertus Velde","registered_at":"2026-06-16T03:44:58Z","symbol":"NIM0927100","token_address":"0x9370ec37844c3aaa6b5a2b891171758853711999","type":"artist","uuid":"27f13387-5063-4bb1-af85-fb4e05b8d236"}
album: Vanavond!
  type: MusicAlbum
  date published: 2023-09-01
album: Die Bouzouki's
  type: MusicAlbum
  date published: 2024-07-17
  track: Die Bouzouki's
    type: MusicRecording
    duration: PT3M1S
    duration ms: 181950
    explicit: false
    by artist: Bertus Velde
    in album: Die Bouzouki's
      type: MusicAlbum
      date published: 2024-07-17
    isrc code: NLHA72200165
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T07:16:33+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x83cce25afccc27a365862f1c024c17597188cf08e693693fa8bb1b5e2089111d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958520
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958520
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHA72200165
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T08:19:09Z
    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 0x83cce25afccc27a365862f1c024c17597188cf08e693693fa8bb1b5e2089111d. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/NLHA72200165.
      date published: 2026-07-18T08:19:09Z
    audio: Die Bouzouki's
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 122.006
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.788
      additional property: Energy
        type: PropertyValue
        value: 0.85
      additional property: Speechiness
        type: PropertyValue
        value: 0.077
      additional property: Acousticness
        type: PropertyValue
        value: 0.09
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.082
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.952
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.986
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major