Hauhwii
type: MusicGroup
popularity: 18
followers: 3562
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x38fa4a64308b98172ac44002d0509149148481e693d1a2d57064943bfe602b52
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953648
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953648
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/453e6f37-bcf8-495a-8f6b-5bfeef3e0183.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/453e6f37-bcf8-495a-8f6b-5bfeef3e0183.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/453e6f37-bcf8-495a-8f6b-5bfeef3e0183
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T15:20:52Z
additional property: OTSCanonicalRecord
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 0x38fa4a64308b98172ac44002d0509149148481e693d1a2d57064943bfe602b52. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/453e6f37-bcf8-495a-8f6b-5bfeef3e0183.json and https://artists.proofprofile.net/proofs/artist/453e6f37-bcf8-495a-8f6b-5bfeef3e0183.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
album: Falling
  type: MusicAlbum
  date published: 2019-12-17
album: Blinded
  type: MusicAlbum
  date published: 2019-12-27
album: Over!
  type: MusicAlbum
  date published: 2020-01-17
album: Lonely
  type: MusicAlbum
  date published: 2020-02-17
album: Tweaking
  type: MusicAlbum
  date published: 2020-03-03
album: Oh No!
  type: MusicAlbum
  date published: 2020-03-14
album: Pieces
  type: MusicAlbum
  date published: 2020-03-27
album: Designer
  type: MusicAlbum
  date published: 2020-05-27
  track: Designer
    type: MusicRecording
    duration: PT2M50S
    duration ms: 170012
    explicit: true
    by artist: Hauhwii
    in album: Designer
      type: MusicAlbum
      date published: 2020-05-27
    isrc code: QZES72028776
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-02T23:34:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x318b824f10796d22f94c0947a20ed1af8cd659f3fcce48feed3e83c2654d23af
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956422
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956422
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES72028776
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T01:01:38Z
    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 0x318b824f10796d22f94c0947a20ed1af8cd659f3fcce48feed3e83c2654d23af. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZES72028776.
      date published: 2026-07-03T01:01:38Z
    audio: Designer
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 103.008
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.784
      additional property: Energy
        type: PropertyValue
        value: 0.586
      additional property: Speechiness
        type: PropertyValue
        value: 0.186
      additional property: Acousticness
        type: PropertyValue
        value: 0.045
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.098
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.593
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.897
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Designer
  type: MusicAlbum
  date published: 2020-05-27
album: in my mind
  type: MusicAlbum
  date published: 2020-07-10
album: Good Gas
  type: MusicAlbum
  date published: 2020-08-14