Brad Brouwer
type: MusicGroup
popularity: 2
followers: 32
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb753701aa18535fe464618a6bb77944aea986dbc8b90cd4dec0163dd5410edbc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954569
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954569
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b354204d-dd8d-4109-b9ff-f60d454caf04.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b354204d-dd8d-4109-b9ff-f60d454caf04.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b354204d-dd8d-4109-b9ff-f60d454caf04
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T14:36:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb753701aa18535fe464618a6bb77944aea986dbc8b90cd4dec0163dd5410edbc","name":"Brad Brouwer","registered_at":"2026-06-20T13:04:58Z","symbol":"NIM1621127","token_address":"0xd2a8377131aee9811384e5ad26d759366edb1681","type":"artist","uuid":"b354204d-dd8d-4109-b9ff-f60d454caf04"}
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 0xb753701aa18535fe464618a6bb77944aea986dbc8b90cd4dec0163dd5410edbc. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b354204d-dd8d-4109-b9ff-f60d454caf04.json and https://artists.proofprofile.net/proofs/artist/b354204d-dd8d-4109-b9ff-f60d454caf04.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T14:36:29Z
  text: {"copyright_id":"0xb753701aa18535fe464618a6bb77944aea986dbc8b90cd4dec0163dd5410edbc","name":"Brad Brouwer","registered_at":"2026-06-20T13:04:58Z","symbol":"NIM1621127","token_address":"0xd2a8377131aee9811384e5ad26d759366edb1681","type":"artist","uuid":"b354204d-dd8d-4109-b9ff-f60d454caf04"}
album: Niet te beschrijven
  type: MusicAlbum
  date published: 2024-10-11
  track: Niet te beschrijven
    type: MusicRecording
    duration: PT2M32S
    duration ms: 152000
    explicit: false
    by artist: Brad Brouwer
    in album: Niet te beschrijven
      type: MusicAlbum
      date published: 2024-10-11
    isrc code: NLV4S2400010
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T17:57:35+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0fba558e1a5f89017c8384907f0e08227883a30e1227d6aca24990ca4cc17026
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958765
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958765
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLV4S2400010
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T20:59:13Z
    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 0x0fba558e1a5f89017c8384907f0e08227883a30e1227d6aca24990ca4cc17026. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:59:13Z), 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/NLV4S2400010.
      date published: 2026-07-19T20:59:13Z
    audio: Niet te beschrijven
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 118.055
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.721
      additional property: Energy
        type: PropertyValue
        value: 0.716
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.006
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.002
      additional property: Liveness
        type: PropertyValue
        value: 0.199
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.891
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.898
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major