読書のカフェ
type: MusicGroup
popularity: 4
followers: 24
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x040f04b02e9b816511bb6fc81c9bff5948a8933ec0049789034043b55bf5952e
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/967cc346-104f-4ef6-9171-45987a7be845.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/967cc346-104f-4ef6-9171-45987a7be845.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/967cc346-104f-4ef6-9171-45987a7be845
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x040f04b02e9b816511bb6fc81c9bff5948a8933ec0049789034043b55bf5952e","name":"読書のカフェ","registered_at":"2026-06-17T18:12:31Z","symbol":"NIM1477629","token_address":"0xf8f964791d3bd54f563089a7b949b0bae1d13766","type":"artist","uuid":"967cc346-104f-4ef6-9171-45987a7be845"}
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 0x040f04b02e9b816511bb6fc81c9bff5948a8933ec0049789034043b55bf5952e. 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/967cc346-104f-4ef6-9171-45987a7be845.json and https://artists.proofprofile.net/proofs/artist/967cc346-104f-4ef6-9171-45987a7be845.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x040f04b02e9b816511bb6fc81c9bff5948a8933ec0049789034043b55bf5952e","name":"読書のカフェ","registered_at":"2026-06-17T18:12:31Z","symbol":"NIM1477629","token_address":"0xf8f964791d3bd54f563089a7b949b0bae1d13766","type":"artist","uuid":"967cc346-104f-4ef6-9171-45987a7be845"}
album: 読書はかどるピアノ音楽: 静かに集中するピアノ音楽, リラックス作業音楽
  type: MusicAlbum
  date published: 2021-09-14
album: 読書が進むピアノ音楽: カフェの雰囲気, 読書捗る環境
  type: MusicAlbum
  date published: 2023-02-14
album: 朝の癒し読書
  type: MusicAlbum
  date published: 2024-04-02
album: 落ち着く読書音楽 - 寝る前の熟読, リラックス作業音楽
  type: MusicAlbum
  date published: 2024-04-02