Haiki
type: MusicGroup
genre: japanese indie
genre: j-rock
genre: math rock
genre: midwest emo
popularity: 7
followers: 1719
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6bcc6b24cc362738d682629d0fac318ddbc001b5b3271fdef4067525e17a3f8f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954623
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954623
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cbd86b0e-3a55-4f41-bd19-82650b6dd8c0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cbd86b0e-3a55-4f41-bd19-82650b6dd8c0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cbd86b0e-3a55-4f41-bd19-82650b6dd8c0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:40:06Z
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 0x6bcc6b24cc362738d682629d0fac318ddbc001b5b3271fdef4067525e17a3f8f. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cbd86b0e-3a55-4f41-bd19-82650b6dd8c0.json and https://artists.proofprofile.net/proofs/artist/cbd86b0e-3a55-4f41-bd19-82650b6dd8c0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:40:06Z
album: Yoake Mae
  type: MusicAlbum
  date published: 2018-08-01
album: 夜明け前
  type: MusicAlbum
  date published: 2018-08-01
album: Good luck
  type: MusicAlbum
  date published: 2018-09-01
album: Good luck
  type: MusicAlbum
  date published: 2018-09-01
album: NOROSHI
  type: MusicAlbum
  date published: 2019-09-01
  track: Kaerimichi
    type: MusicRecording
    duration: PT3M13S
    duration ms: 193684
    explicit: false
    by artist: Haiki
    in album: NOROSHI
      type: MusicAlbum
      date published: 2019-09-01
    genre: japanese indie
    genre: j-rock
    genre: math rock
    genre: midwest emo
    isrc code: TCJPJ1979441
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T07:16:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3916993f714a34fa6d4d7996e3128b228cc1f8e68eec785b14511253a826f245
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958696
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958696
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPJ1979441
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T07:45:31Z
    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 0x3916993f714a34fa6d4d7996e3128b228cc1f8e68eec785b14511253a826f245. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/TCJPJ1979441.
      date published: 2026-07-19T07:45:31Z
    audio: Kaerimichi
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 141.792
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.287
      additional property: Energy
        type: PropertyValue
        value: 0.723
      additional property: Speechiness
        type: PropertyValue
        value: 0.076
      additional property: Acousticness
        type: PropertyValue
        value: 0.004
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.068
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.683
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.594
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 狼煙
  type: MusicAlbum
  date published: 2019-09-01
album: Split
  type: MusicAlbum
  date published: 2021-01-08
album: Split
  type: MusicAlbum
  date published: 2021-01-08
album: はじめの一歩
  type: MusicAlbum
  date published: 2021-05-27
album: First Step
  type: MusicAlbum
  date published: 2021-05-27