Harper Holland
type: MusicGroup
popularity: 2
followers: 19
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0c666360c17ab85bee874d9a92bb6e6b3a91e178377bde92794472aaa4a3cbf8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953888
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953888
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0dcb7426-fefd-48a9-a146-1d27bb575461.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0dcb7426-fefd-48a9-a146-1d27bb575461.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0dcb7426-fefd-48a9-a146-1d27bb575461
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T04:55:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0c666360c17ab85bee874d9a92bb6e6b3a91e178377bde92794472aaa4a3cbf8","name":"Harper Holland","registered_at":"2026-06-15T18:20:02Z","symbol":"NIM0792268","token_address":"0x8bd1e451ae62269116a3621f613cbc23f45c7d66","type":"artist","uuid":"0dcb7426-fefd-48a9-a146-1d27bb575461"}
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 0x0c666360c17ab85bee874d9a92bb6e6b3a91e178377bde92794472aaa4a3cbf8. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0dcb7426-fefd-48a9-a146-1d27bb575461.json and https://artists.proofprofile.net/proofs/artist/0dcb7426-fefd-48a9-a146-1d27bb575461.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0x0c666360c17ab85bee874d9a92bb6e6b3a91e178377bde92794472aaa4a3cbf8","name":"Harper Holland","registered_at":"2026-06-15T18:20:02Z","symbol":"NIM0792268","token_address":"0x8bd1e451ae62269116a3621f613cbc23f45c7d66","type":"artist","uuid":"0dcb7426-fefd-48a9-a146-1d27bb575461"}
album: Kadra
  type: MusicAlbum
  date published: 2022-06-01
album: Kapral
  type: MusicAlbum
  date published: 2022-06-01
album: Teodolinda Rua
  type: MusicAlbum
  date published: 2022-06-01
  track: Teodolinda Rua
    type: MusicRecording
    duration: PT1M1S
    duration ms: 61146
    explicit: false
    by artist: Harper Holland
    in album: Teodolinda Rua
      type: MusicAlbum
      date published: 2022-06-01
    isrc code: QZQAY2284322
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T06:35:37+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xcf7c9d3dbf64802b6ba2f445bb550e5cac0b41cba74ebb0d115e2141c904117f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956776
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956776
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZQAY2284322
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:59:37Z
    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 0xcf7c9d3dbf64802b6ba2f445bb550e5cac0b41cba74ebb0d115e2141c904117f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZQAY2284322.
      date published: 2026-07-05T10:59:37Z
    audio: Teodolinda Rua
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 145.975
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.518
      additional property: Energy
        type: PropertyValue
        value: 0.075
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.948
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.979
      additional property: Liveness
        type: PropertyValue
        value: 0.151
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.171
      additional property: Loudness (dB)
        type: PropertyValue
        value: -21.778
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Phantom Addison
  type: MusicAlbum
  date published: 2022-06-01