夕街図書室
type: MusicGroup
genre: vocaloid
popularity: 4
followers: 98
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcb83a92080ed6420a548a24cc900ed4361177d210dbe3109d8dc647b93ad1d45
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954513
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9d2c91f8-6a1c-4d04-9eb1-93b628d32863.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9d2c91f8-6a1c-4d04-9eb1-93b628d32863.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9d2c91f8-6a1c-4d04-9eb1-93b628d32863
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T06:31:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcb83a92080ed6420a548a24cc900ed4361177d210dbe3109d8dc647b93ad1d45","name":"夕街図書室","registered_at":"2026-06-20T04:25:21Z","symbol":"NIM1510911","token_address":"0x170919eea8ba1d982471492bf7d64729dd30a80c","type":"artist","uuid":"9d2c91f8-6a1c-4d04-9eb1-93b628d32863"}
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 0xcb83a92080ed6420a548a24cc900ed4361177d210dbe3109d8dc647b93ad1d45. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d2c91f8-6a1c-4d04-9eb1-93b628d32863.json and https://artists.proofprofile.net/proofs/artist/9d2c91f8-6a1c-4d04-9eb1-93b628d32863.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T06:31:18Z
  text: {"copyright_id":"0xcb83a92080ed6420a548a24cc900ed4361177d210dbe3109d8dc647b93ad1d45","name":"夕街図書室","registered_at":"2026-06-20T04:25:21Z","symbol":"NIM1510911","token_address":"0x170919eea8ba1d982471492bf7d64729dd30a80c","type":"artist","uuid":"9d2c91f8-6a1c-4d04-9eb1-93b628d32863"}
album: 恋する徒花は甘い季節 feat. 可不
  type: MusicAlbum
  date published: 2024-12-06
album: 夕街図書室 feat. 可不
  type: MusicAlbum
  date published: 2024-12-27
album: あの砕ける波のように feat. 可不
  type: MusicAlbum
  date published: 2025-01-10
album: あの砕ける波のように-完全版- feat. 可不
  type: MusicAlbum
  date published: 2025-01-24
album: 恋する徒花は甘い季節 feat. 可不 (Band Sounds ver.)
  type: MusicAlbum
  date published: 2025-02-14
album: 日々、ぶち壊す日々。 feat. 可不
  type: MusicAlbum
  date published: 2025-02-21
  track: 日々、ぶち壊す日々。 feat. 可不
    type: MusicRecording
    duration: PT3M16S
    duration ms: 196987
    explicit: false
    by artist: 夕街図書室
    in album: 日々、ぶち壊す日々。 feat. 可不
      type: MusicAlbum
      date published: 2025-02-21
    genre: vocaloid
    isrc code: JPW462512302
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T08:34:16+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9748bfb32a414edde691d89efd94bf0fed75577dd9efb8322e0aae0039ce9e8d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958987
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958987
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW462512302
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T09:04:56Z
    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 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 0x9748bfb32a414edde691d89efd94bf0fed75577dd9efb8322e0aae0039ce9e8d. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/JPW462512302.
      date published: 2026-07-21T09:04:56Z
    audio: 日々、ぶち壊す日々。 feat. 可不
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 166.004
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.46
      additional property: Energy
        type: PropertyValue
        value: 0.806
      additional property: Speechiness
        type: PropertyValue
        value: 0.064
      additional property: Acousticness
        type: PropertyValue
        value: 0.065
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.81
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.904
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.761
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 手紙を燃やす feat. 奏兎める
  type: MusicAlbum
  date published: 2025-03-15
album: 日々、ぶち壊す日々。 (ver2.0)
  type: MusicAlbum
  date published: 2025-03-28
album: 桜色、満開の下
  type: MusicAlbum
  date published: 2025-04-11
album: 陽が昇るまで
  type: MusicAlbum
  date published: 2025-05-23
album: 美しきこの世界
  type: MusicAlbum
  date published: 2025-06-13
album: 熱く憂いのある憧憬
  type: MusicAlbum
  date published: 2025-07-04
album: 夕街幻燈
  type: MusicAlbum
  date published: 2025-08-01
album: 怖くはないさ
  type: MusicAlbum
  date published: 2025-10-10
album: ゆれるオレンジ
  type: MusicAlbum
  date published: 2025-10-24
album: 僕は機械
  type: MusicAlbum
  date published: 2025-11-07