Donovan Hikaru
type: MusicGroup
genre: vaporwave
popularity: 8
followers: 350
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xede4e557a89d4569852cae676cfdb10021adbdf6a54630ca07de8986e9a5a032
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ab4b9c38-ef90-4714-a753-96eaa081fc07.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ab4b9c38-ef90-4714-a753-96eaa081fc07.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ab4b9c38-ef90-4714-a753-96eaa081fc07
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xede4e557a89d4569852cae676cfdb10021adbdf6a54630ca07de8986e9a5a032","name":"Donovan Hikaru","registered_at":"2026-06-20T09:23:15Z","symbol":"NIM1578798","token_address":"0xf95074984f88f98512bfb77e9be3170f86c83af4","type":"artist","uuid":"ab4b9c38-ef90-4714-a753-96eaa081fc07"}
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 0xede4e557a89d4569852cae676cfdb10021adbdf6a54630ca07de8986e9a5a032. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab4b9c38-ef90-4714-a753-96eaa081fc07.json and https://artists.proofprofile.net/proofs/artist/ab4b9c38-ef90-4714-a753-96eaa081fc07.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0xede4e557a89d4569852cae676cfdb10021adbdf6a54630ca07de8986e9a5a032","name":"Donovan Hikaru","registered_at":"2026-06-20T09:23:15Z","symbol":"NIM1578798","token_address":"0xf95074984f88f98512bfb77e9be3170f86c83af4","type":"artist","uuid":"ab4b9c38-ef90-4714-a753-96eaa081fc07"}
album: Business Travel Bonanza
  type: MusicAlbum
  date published: 2015-05-25
album: Kiosk Vibes
  type: MusicAlbum
  date published: 2017-01-20
  track: Nighttime Promenade
    type: MusicRecording
    duration: PT3M27S
    duration ms: 207843
    explicit: false
    by artist: Donovan Hikaru
    in album: Kiosk Vibes
      type: MusicAlbum
      date published: 2017-01-20
    genre: vaporwave
    isrc code: CA4H11113033
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-13T19:15:57+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x32790ca986935730998af8d7e9a25e848fb6024cf3acf5fda1f96ce38dfd919f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957965
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957965
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA4H11113033
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-14T07:07:52Z
    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 0x32790ca986935730998af8d7e9a25e848fb6024cf3acf5fda1f96ce38dfd919f. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/CA4H11113033.
      date published: 2026-07-14T07:07:52Z
    audio: Nighttime Promenade
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 134.642
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.18
      additional property: Energy
        type: PropertyValue
        value: 0.614
      additional property: Speechiness
        type: PropertyValue
        value: 0.054
      additional property: Acousticness
        type: PropertyValue
        value: 0.063
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.775
      additional property: Liveness
        type: PropertyValue
        value: 0.135
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.254
      additional property: Loudness (dB)
        type: PropertyValue
        value: -16.22
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Selected Moods
  type: MusicAlbum
  date published: 2019-10-09
album: Crisis Revelation Solution
  type: MusicAlbum
  date published: 2021-03-22
album: Sunset Kills
  type: MusicAlbum
  date published: 2022-03-18