Hase-T
type: MusicGroup
genre: j-rap
popularity: 9
followers: 307
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7dbe38b8dd59c197018d5289bd4cd87e7d202b70aef865a7923687d62acbe246
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e6a4be15-2d3b-4023-ab98-f869bf53c96d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e6a4be15-2d3b-4023-ab98-f869bf53c96d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e6a4be15-2d3b-4023-ab98-f869bf53c96d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
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 0x7dbe38b8dd59c197018d5289bd4cd87e7d202b70aef865a7923687d62acbe246. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e6a4be15-2d3b-4023-ab98-f869bf53c96d.json and https://artists.proofprofile.net/proofs/artist/e6a4be15-2d3b-4023-ab98-f869bf53c96d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
album: Sentiment
  type: MusicAlbum
  date published: 1997-07-28
album: TWILIGHT
  type: MusicAlbum
  date published: 1998-07-24
album: SOUND OF WISDOM
  type: MusicAlbum
  date published: 1998-08-28
album: SOUND OF WISDOM
  type: MusicAlbum
  date published: 1998-08-28
album: Treasure House Records Presents Steelpan Reggae Covers
  type: MusicAlbum
  date published: 2012-12-05
album: Go Around (feat. Kantarou)
  type: MusicAlbum
  date published: 2020-03-18
album: Go Around (feat. 貫太郎)
  type: MusicAlbum
  date published: 2020-03-18
album: GET OVER (LATE SUMMER REMIX)
  type: MusicAlbum
  date published: 2020-09-16
album: GET OVER (LATE SUMMER REMIX)
  type: MusicAlbum
  date published: 2020-09-16
album: 夕暮れサマー
  type: MusicAlbum
  date published: 2022-07-01
  track: 夕暮れサマー
    type: MusicRecording
    duration: PT3M51S
    duration ms: 231818
    explicit: false
    by artist: Hase-T
    in album: 夕暮れサマー
      type: MusicAlbum
      date published: 2022-07-01
    genre: j-rap
    isrc code: JPV502200320
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T13:15:07+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x995684dfd4902594185ed7f9125d7683997962bdc0f883afd145db06660ba2a4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPV502200320
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0x995684dfd4902594185ed7f9125d7683997962bdc0f883afd145db06660ba2a4. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPV502200320.
      date published: 2026-07-05T19:27:56Z
    audio: 夕暮れサマー
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 88.014
      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: 0.854
      additional property: Energy
        type: PropertyValue
        value: 0.487
      additional property: Speechiness
        type: PropertyValue
        value: 0.049
      additional property: Acousticness
        type: PropertyValue
        value: 0.081
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.078
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.735
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.892
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Born To Be Free
  type: MusicAlbum
  date published: 2022-07-15
album: TWENTY
  type: MusicAlbum
  date published: 2022-08-03
album: 想い出がいっぱい
  type: MusicAlbum
  date published: 2024-02-28
album: れいわスーダラ（スーダラ節）
  type: MusicAlbum
  date published: 2024-06-26
album: 夏の終わり feat. 津川ゆりあ
  type: MusicAlbum
  date published: 2025-09-24
album: 首都高速DANCEHALL感情線 feat. Domino Kat
  type: MusicAlbum
  date published: 2025-10-22