Barend Servet
type: MusicGroup
genre: nederpop
popularity: 2
followers: 167
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdaed0d885433da4984f014adc32a7de4b8b14627022713c9486dac1e409c58aa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d0f349cd-13c7-480c-9e76-89c0b0f9fb07.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d0f349cd-13c7-480c-9e76-89c0b0f9fb07.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d0f349cd-13c7-480c-9e76-89c0b0f9fb07
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdaed0d885433da4984f014adc32a7de4b8b14627022713c9486dac1e409c58aa","name":"Barend Servet","registered_at":"2026-06-21T01:02:43Z","symbol":"NIM1769978","token_address":"0x7cef4a9849a2e4dcbd0c5a4a5dbf6c962d4cdd55","type":"artist","uuid":"d0f349cd-13c7-480c-9e76-89c0b0f9fb07"}
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 0xdaed0d885433da4984f014adc32a7de4b8b14627022713c9486dac1e409c58aa. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d0f349cd-13c7-480c-9e76-89c0b0f9fb07.json and https://artists.proofprofile.net/proofs/artist/d0f349cd-13c7-480c-9e76-89c0b0f9fb07.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0xdaed0d885433da4984f014adc32a7de4b8b14627022713c9486dac1e409c58aa","name":"Barend Servet","registered_at":"2026-06-21T01:02:43Z","symbol":"NIM1769978","token_address":"0x7cef4a9849a2e4dcbd0c5a4a5dbf6c962d4cdd55","type":"artist","uuid":"d0f349cd-13c7-480c-9e76-89c0b0f9fb07"}
album: Waar moet dat heen? Hoe zal dat gaan?
  type: MusicAlbum
  date published: 1973
  track: Waar moet dat heen?
    type: MusicRecording
    duration: PT4M17S
    duration ms: 257040
    explicit: true
    by artist: Barend Servet
    in album: Waar moet dat heen? Hoe zal dat gaan?
      type: MusicAlbum
      date published: 1973
    genre: nederpop
    isrc code: NLC287300021
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T04:05:46+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd1a8d191a5d25b239eb5fff351c5ea0f1069ff0b7b240361d59fc235f5a75c82
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958965
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958965
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLC287300021
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T04:29:05Z
    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 0xd1a8d191a5d25b239eb5fff351c5ea0f1069ff0b7b240361d59fc235f5a75c82. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/NLC287300021.
      date published: 2026-07-21T04:29:05Z
    audio: Waar moet dat heen?
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.611
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.647
      additional property: Energy
        type: PropertyValue
        value: 0.327
      additional property: Speechiness
        type: PropertyValue
        value: 0.044
      additional property: Acousticness
        type: PropertyValue
        value: 0.887
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.427
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.522
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.044
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: En Van Je A, B, C / Den Blinde (Instrumentaal)
  type: MusicAlbum
  date published: 1976-05-19