天川はの
type: MusicGroup
genre: future bass
popularity: 2
followers: 282
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2a362a779bc65b0efcf658069c77c04069c8340e0310d3544fefa4dcaa6ccdcc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953972
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953972
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2aa3621f-730c-441d-b1ac-7a54d2d6ecd8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2aa3621f-730c-441d-b1ac-7a54d2d6ecd8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2aa3621f-730c-441d-b1ac-7a54d2d6ecd8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:31:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2a362a779bc65b0efcf658069c77c04069c8340e0310d3544fefa4dcaa6ccdcc","name":"天川はの","registered_at":"2026-06-16T04:21:40Z","symbol":"NIM0935865","token_address":"0x582ce93e510015ea08e2264eb9810c5c772ebdf7","type":"artist","uuid":"2aa3621f-730c-441d-b1ac-7a54d2d6ecd8"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a362a779bc65b0efcf658069c77c04069c8340e0310d3544fefa4dcaa6ccdcc. Chain 2 (Bitcoin): anchored in block 953972 (2026-06-16T16:31:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2aa3621f-730c-441d-b1ac-7a54d2d6ecd8.json and https://artists.proofprofile.net/proofs/artist/2aa3621f-730c-441d-b1ac-7a54d2d6ecd8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:31:10Z
  text: {"copyright_id":"0x2a362a779bc65b0efcf658069c77c04069c8340e0310d3544fefa4dcaa6ccdcc","name":"天川はの","registered_at":"2026-06-16T04:21:40Z","symbol":"NIM0935865","token_address":"0x582ce93e510015ea08e2264eb9810c5c772ebdf7","type":"artist","uuid":"2aa3621f-730c-441d-b1ac-7a54d2d6ecd8"}
album: Honeycomb
  type: MusicAlbum
  date published: 2020-12-27
album: Star♡Letter
  type: MusicAlbum
  date published: 2022-04-09
album: キライトネス
  type: MusicAlbum
  date published: 2023-01-18
  track: キライトネス
    type: MusicRecording
    duration: PT3M26S
    duration ms: 206825
    explicit: false
    by artist: 天川はの
    in album: キライトネス
      type: MusicAlbum
      date published: 2023-01-18
    genre: future bass
    isrc code: TCJPU2335998
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T11:45:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xba8d734ea17faa78743dbe27ea869df9a821bdf1ca2985185af3b81ff78842b8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959128
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959128
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2335998
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T12:33:25Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba8d734ea17faa78743dbe27ea869df9a821bdf1ca2985185af3b81ff78842b8. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/TCJPU2335998.
      date published: 2026-07-22T12:33:25Z
    audio: キライトネス
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 149.976
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.69
      additional property: Energy
        type: PropertyValue
        value: 0.855
      additional property: Speechiness
        type: PropertyValue
        value: 0.106
      additional property: Acousticness
        type: PropertyValue
        value: 0.023
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.034
      additional property: Liveness
        type: PropertyValue
        value: 0.139
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.682
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.667
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: ラブプライズ
  type: MusicAlbum
  date published: 2023-10-20
album: my own star
  type: MusicAlbum
  date published: 2023-12-30
album: ドメスティック♡に恋してる
  type: MusicAlbum
  date published: 2024-08-28
album: 星のインヴィテーション
  type: MusicAlbum
  date published: 2025-04-19