Johan de Wal
type: MusicGroup
popularity: 6
followers: 119
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x05d3d4eac57f2eda5b687021fad911bf80a941ab526a9857667f9e559a2af90b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954035
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954035
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3c406c31-b10b-45e0-9e2b-b34b81bce129.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3c406c31-b10b-45e0-9e2b-b34b81bce129.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3c406c31-b10b-45e0-9e2b-b34b81bce129
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T02:39:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x05d3d4eac57f2eda5b687021fad911bf80a941ab526a9857667f9e559a2af90b","name":"Johan de Wal","registered_at":"2026-06-16T10:34:02Z","symbol":"NIM1024779","token_address":"0xaac1b602088cf459d023036c10b4331b0cd5cb82","type":"artist","uuid":"3c406c31-b10b-45e0-9e2b-b34b81bce129"}
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 0x05d3d4eac57f2eda5b687021fad911bf80a941ab526a9857667f9e559a2af90b. Chain 2 (Bitcoin): anchored in block 954035 (2026-06-17T02:39:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c406c31-b10b-45e0-9e2b-b34b81bce129.json and https://artists.proofprofile.net/proofs/artist/3c406c31-b10b-45e0-9e2b-b34b81bce129.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T02:39:28Z
  text: {"copyright_id":"0x05d3d4eac57f2eda5b687021fad911bf80a941ab526a9857667f9e559a2af90b","name":"Johan de Wal","registered_at":"2026-06-16T10:34:02Z","symbol":"NIM1024779","token_address":"0xaac1b602088cf459d023036c10b4331b0cd5cb82","type":"artist","uuid":"3c406c31-b10b-45e0-9e2b-b34b81bce129"}
album: Tenor Banjo, Sets & Tunes - Part B
  type: MusicAlbum
  date published: 2011
album: Tenor Banjo, Sets & Tunes - Part A
  type: MusicAlbum
  date published: 2011
  track: Dancingmaster / Gillian's Apples / Three Little Drummers (Jigs)
    type: MusicRecording
    duration: PT3M48S
    duration ms: 228284
    explicit: false
    by artist: Johan de Wal
    in album: Tenor Banjo, Sets & Tunes - Part A
      type: MusicAlbum
      date published: 2011
    isrc code: USJ3V1293922
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T05:00:59+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9dbe14d2154bd0402b15f165f1574f2cc87a29112115a5d4ff81a1eaa7120d42
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956894
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956894
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V1293922
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T07:53:57Z
    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 0x9dbe14d2154bd0402b15f165f1574f2cc87a29112115a5d4ff81a1eaa7120d42. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USJ3V1293922.
      date published: 2026-07-06T07:53:57Z
    audio: Dancingmaster / Gillian's Apples / Three Little Drummers (Jigs)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 123.111
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.639
      additional property: Energy
        type: PropertyValue
        value: 0.573
      additional property: Speechiness
        type: PropertyValue
        value: 0.092
      additional property: Acousticness
        type: PropertyValue
        value: 0.567
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.916
      additional property: Liveness
        type: PropertyValue
        value: 0.086
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.818
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.367
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Johan's Tenor Banjo - Part 1
  type: MusicAlbum
  date published: 2017-03-15
album: Johan's Tenor Banjo - Part 2
  type: MusicAlbum
  date published: 2017-03-19
album: Smeceno Horo
  type: MusicAlbum
  date published: 2018-04-13
album: Salley Gardens
  type: MusicAlbum
  date published: 2018-04-13
album: Green Groves of Erin
  type: MusicAlbum
  date published: 2019-01-21
album: Johan's Tenor Banjo - Album 2
  type: MusicAlbum
  date published: 2019-02-26
album: Johan's Tenor Banjo - Album 4
  type: MusicAlbum
  date published: 2019-02-26
album: Johan's Tenor Banjo - Album 3
  type: MusicAlbum
  date published: 2019-02-26
album: Johan's Tenor Banjo - Album 1
  type: MusicAlbum
  date published: 2019-02-26
album: Johan's Tenor Banjo Sets & Tunes Album 4
  type: MusicAlbum
  date published: 2019-05-28
album: Johan's Tenor Banjo Sets & Tunes Album 3
  type: MusicAlbum
  date published: 2019-06-14
album: Johan's Tenor Banjo Sets & Tunes Album 2
  type: MusicAlbum
  date published: 2019-07-17
album: Johan's Tenor Banjo Sets & Tunes Album 1
  type: MusicAlbum
  date published: 2019-09-14
album: Smeceno Horo
  type: MusicAlbum
  date published: 2019-11-26