集中読書タイム
type: MusicGroup
popularity: 5
followers: 143
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9d2937dc4cac8a536e804fb7c7e6e98807dab2b1a8f119cacb9db81b3153d99d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9424b96a-2c7d-450f-b404-91f2e60c2640.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9424b96a-2c7d-450f-b404-91f2e60c2640.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9424b96a-2c7d-450f-b404-91f2e60c2640
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9d2937dc4cac8a536e804fb7c7e6e98807dab2b1a8f119cacb9db81b3153d99d","name":"集中読書タイム","registered_at":"2026-06-17T17:23:12Z","symbol":"NIM1465850","token_address":"0x767c9a8f4c815b1a046f5a456ed25236cac0c229","type":"artist","uuid":"9424b96a-2c7d-450f-b404-91f2e60c2640"}
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 0x9d2937dc4cac8a536e804fb7c7e6e98807dab2b1a8f119cacb9db81b3153d99d. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9424b96a-2c7d-450f-b404-91f2e60c2640.json and https://artists.proofprofile.net/proofs/artist/9424b96a-2c7d-450f-b404-91f2e60c2640.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x9d2937dc4cac8a536e804fb7c7e6e98807dab2b1a8f119cacb9db81b3153d99d","name":"集中読書タイム","registered_at":"2026-06-17T17:23:12Z","symbol":"NIM1465850","token_address":"0x767c9a8f4c815b1a046f5a456ed25236cac0c229","type":"artist","uuid":"9424b96a-2c7d-450f-b404-91f2e60c2640"}
album: 読書用ピアノＢＧＭ: オーディオブック背景音, 読書集中音楽
  type: MusicAlbum
  date published: 2020-10-02
album: カフェ読書音楽: ピアノ作業用ＢＧＭ, カフェ勉強, チルアウトミュージック
  type: MusicAlbum
  date published: 2021-05-18
album: 読書ＢＧＭ: 本の世界に入り込む集中クラシックピアノ音楽, 夜のＢＧＭ
  type: MusicAlbum
  date published: 2021-09-14
album: オーディオブック背景音: Single
  type: MusicAlbum
  date published: 2023-02-14
album: 読書の為のピアノ音楽: カフェのピアノＢＧＭ, 読書に集中する
  type: MusicAlbum
  date published: 2023-02-14
album: 読書没頭音楽：集中力途切れないインストメンタルサウンド・学習落ち着く空間ミュージック
  type: MusicAlbum
  date published: 2024-04-02
album: 夜の読書 - 本の世界にのめり込む癒しピアノ音楽, 想像が膨らむ曲
  type: MusicAlbum
  date published: 2024-04-02
album: 集中する読書音楽：リラックスして読書時間・集中力高めるインストメンタル
  type: MusicAlbum
  date published: 2025-09-19