Yoru no Hitowarai
type: MusicGroup
genre: j-pop
popularity: 39
followers: 131752
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc482d11a226b87dae570c4a29609c87fe9c6a9379ad6ae4b816b7f2f736787e8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/42a376d0-a32c-4806-9cb4-6e882ea2be7e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/42a376d0-a32c-4806-9cb4-6e882ea2be7e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/42a376d0-a32c-4806-9cb4-6e882ea2be7e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc482d11a226b87dae570c4a29609c87fe9c6a9379ad6ae4b816b7f2f736787e8","name":"Yoru no Hitowarai","registered_at":"2026-06-11T17:46:48Z","symbol":"NIM0085543","token_address":"0xa513329c93719a4ad5ded5da3a42b68b6c39aa80","type":"artist","uuid":"42a376d0-a32c-4806-9cb4-6e882ea2be7e"}
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 0xc482d11a226b87dae570c4a29609c87fe9c6a9379ad6ae4b816b7f2f736787e8. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/42a376d0-a32c-4806-9cb4-6e882ea2be7e.json and https://artists.proofprofile.net/proofs/artist/42a376d0-a32c-4806-9cb4-6e882ea2be7e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xc482d11a226b87dae570c4a29609c87fe9c6a9379ad6ae4b816b7f2f736787e8","name":"Yoru no Hitowarai","registered_at":"2026-06-11T17:46:48Z","symbol":"NIM0085543","token_address":"0xa513329c93719a4ad5ded5da3a42b68b6c39aa80","type":"artist","uuid":"42a376d0-a32c-4806-9cb4-6e882ea2be7e"}
album: 待てない
  type: MusicAlbum
  date published: 2020-02-05
album: ミライチズ
  type: MusicAlbum
  date published: 2020-06-03
album: ミライチズ
  type: MusicAlbum
  date published: 2021-06-03
album: ミライチズ
  type: MusicAlbum
  date published: 2021-06-03
album: ワライカタ
  type: MusicAlbum
  date published: 2021-11-10
album: 別れ
  type: MusicAlbum
  date published: 2022-09-10
  track: 別れ
    type: MusicRecording
    duration: PT4M0S
    duration ms: 240200
    explicit: false
    by artist: Yoru no Hitowarai
    in album: 別れ
      type: MusicAlbum
      date published: 2022-09-10
    genre: j-pop
    isrc code: JP92N2252965
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-02T21:30:19+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe597c6a2a67b1bc74fbfcf0031a86c183cbcc65ef688f097d3a735c8292e2aec
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956420
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956420
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92N2252965
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T03:21:36Z
    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 0xe597c6a2a67b1bc74fbfcf0031a86c183cbcc65ef688f097d3a735c8292e2aec. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T03:21:36Z), 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/JP92N2252965.
      date published: 2026-07-17T03:21:36Z
    audio: 別れ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 116.97
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.733
      additional property: Energy
        type: PropertyValue
        value: 0.84
      additional property: Speechiness
        type: PropertyValue
        value: 0.045
      additional property: Acousticness
        type: PropertyValue
        value: 0.112
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.268
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.658
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.591
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 別れ
  type: MusicAlbum
  date published: 2022-09-10
album: YoenNikki
  type: MusicAlbum
  date published: 2024-12-28