Chad Van Herk
type: MusicGroup
popularity: 22
followers: 1947
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3dd73b6ababf00a4b2df700b18c27b4f034c995889e034985a650aa0e408e66e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7b66f88b-8d05-4a36-9108-ce6cbcfabd67.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7b66f88b-8d05-4a36-9108-ce6cbcfabd67.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7b66f88b-8d05-4a36-9108-ce6cbcfabd67
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3dd73b6ababf00a4b2df700b18c27b4f034c995889e034985a650aa0e408e66e","name":"Chad Van Herk","registered_at":"2026-06-12T02:31:01Z","symbol":"NIM0160658","token_address":"0x9fe0fa55ab9fb366ee9c8bae44e78092fef6a302","type":"artist","uuid":"7b66f88b-8d05-4a36-9108-ce6cbcfabd67"}
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 0x3dd73b6ababf00a4b2df700b18c27b4f034c995889e034985a650aa0e408e66e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b66f88b-8d05-4a36-9108-ce6cbcfabd67.json and https://artists.proofprofile.net/proofs/artist/7b66f88b-8d05-4a36-9108-ce6cbcfabd67.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0x3dd73b6ababf00a4b2df700b18c27b4f034c995889e034985a650aa0e408e66e","name":"Chad Van Herk","registered_at":"2026-06-12T02:31:01Z","symbol":"NIM0160658","token_address":"0x9fe0fa55ab9fb366ee9c8bae44e78092fef6a302","type":"artist","uuid":"7b66f88b-8d05-4a36-9108-ce6cbcfabd67"}
album: Leavin' Footprints
  type: MusicAlbum
  date published: 2009-02-24
  track: Mosquito Island
    type: MusicRecording
    duration: PT4M43S
    duration ms: 283013
    explicit: false
    by artist: Chad Van Herk
    in album: Leavin' Footprints
      type: MusicAlbum
      date published: 2009-02-24
    isrc code: USCGH0933824
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T08:26:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x86b6a9ec0cde9bd6bdd6c6cab0418a9f13a045ed7c6b18a8ea4b9aff7698b0c7
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958271
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958271
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH0933824
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T11:27:38Z
    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 0x86b6a9ec0cde9bd6bdd6c6cab0418a9f13a045ed7c6b18a8ea4b9aff7698b0c7. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:27:38Z), 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/USCGH0933824.
      date published: 2026-07-16T11:27:38Z
    audio: Mosquito Island
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 88.302
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.731
      additional property: Energy
        type: PropertyValue
        value: 0.189
      additional property: Speechiness
        type: PropertyValue
        value: 0.149
      additional property: Acousticness
        type: PropertyValue
        value: 0.741
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.113
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.713
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.448
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: If We Were
    type: MusicRecording
    duration: PT5M35S
    duration ms: 335026
    explicit: false
    by artist: Chad Van Herk
    in album: Leavin' Footprints
      type: MusicAlbum
      date published: 2009-02-24
    isrc code: USCGH0933826
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T09:21:29+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x18212eab315fb416ba49897ebfcd46e44aa29e11bbc0f6d33bf2bfc1ba108241
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958711
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958711
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH0933826
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T09:26:32Z
    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 0x18212eab315fb416ba49897ebfcd46e44aa29e11bbc0f6d33bf2bfc1ba108241. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USCGH0933826.
      date published: 2026-07-19T09:26:32Z
    audio: If We Were
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 104.969
      additional property: Musical Key
        type: PropertyValue
        value: 7
      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: 0.277
      additional property: Speechiness
        type: PropertyValue
        value: 0.177
      additional property: Acousticness
        type: PropertyValue
        value: 0.357
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.113
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.913
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.031
      additional property: Key Name
      additional property: Mode Name
  track: Summer-Summer Day
album: Daydreaming Days Away
album: A Smile for Everyone
album: Twisted Strings
album: When I Close My Eyes
album: Leavin' Footprints, Vol. Two: Bahama Blues

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major

Summer-Summer Day
type: MusicRecording
duration: PT2M48S
duration ms: 168586
explicit: false
by artist: Chad Van Herk
in album: Leavin' Footprints
  type: MusicAlbum
  date published: 2009-02-24
isrc code: USCGH0933828
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-02T21:11:47+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1682ddb1d522d4d2cb1a98759e34e0fb3d750ddcbd4174fc90ae231ac250b721
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956404
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956404
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH0933828
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-17T04:01:04Z
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 0x1682ddb1d522d4d2cb1a98759e34e0fb3d750ddcbd4174fc90ae231ac250b721. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T04:01:04Z), 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/USCGH0933828.
  date published: 2026-07-17T04:01:04Z
audio: Summer-Summer Day
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 89.506
  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: 0.748
  additional property: Energy
    type: PropertyValue
    value: 0.335
  additional property: Speechiness
    type: PropertyValue
    value: 0.264
  additional property: Acousticness
    type: PropertyValue
    value: 0.397
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.305
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.934
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.372
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Daydreaming Days Away
type: MusicAlbum
date published: 2011-06-16

A Smile for Everyone
type: MusicAlbum
date published: 2014-02-14

Twisted Strings
type: MusicAlbum
date published: 2015-05-01

When I Close My Eyes
type: MusicAlbum
date published: 2016-02-27

Leavin' Footprints, Vol. Two: Bahama Blues
type: MusicAlbum
date published: 2021-02-14