Hiroki Oshiba
type: MusicGroup
genre: japanese indie
genre: vocaloid
popularity: 19
followers: 2392
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xec7548878fffb1b651bd65d547183da0db843251b963d2828408e877f943729b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953633
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953633
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/33e32971-97b1-401f-a7e8-1f1c99d7edb9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/33e32971-97b1-401f-a7e8-1f1c99d7edb9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/33e32971-97b1-401f-a7e8-1f1c99d7edb9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T12:47:11Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xec7548878fffb1b651bd65d547183da0db843251b963d2828408e877f943729b","name":"Hiroki Oshiba","registered_at":"2026-06-14T09:52:30Z","symbol":"NIM0415805","token_address":"0x418de6ebf8fd180ac2ea0954e694cd57667dbaed","type":"artist","uuid":"33e32971-97b1-401f-a7e8-1f1c99d7edb9"}
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 0xec7548878fffb1b651bd65d547183da0db843251b963d2828408e877f943729b. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/33e32971-97b1-401f-a7e8-1f1c99d7edb9.json and https://artists.proofprofile.net/proofs/artist/33e32971-97b1-401f-a7e8-1f1c99d7edb9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0xec7548878fffb1b651bd65d547183da0db843251b963d2828408e877f943729b","name":"Hiroki Oshiba","registered_at":"2026-06-14T09:52:30Z","symbol":"NIM0415805","token_address":"0x418de6ebf8fd180ac2ea0954e694cd57667dbaed","type":"artist","uuid":"33e32971-97b1-401f-a7e8-1f1c99d7edb9"}
album: ミニスカート
  type: MusicAlbum
  date published: 2006-05-24
album: ミニスカート
  type: MusicAlbum
  date published: 2006-05-24
album: HOME COMING<モジャ・モジャ・ライブ・コレクション Vol.1>
  type: MusicAlbum
  date published: 2008-04-03
album: ミニスカート
  type: MusicAlbum
  date published: 2014-10-08
album: それを愛と呼べる日が来るとは思わなかったよ。
  type: MusicAlbum
  date published: 2014-10-15
album: それを愛と呼べる日が来るとは思わなかったよ。
  type: MusicAlbum
  date published: 2014-10-15
album: それを愛と呼べる日が来るとは思わなかったよ。
  type: MusicAlbum
  date published: 2014-10-15
album: chronicle
  type: MusicAlbum
  date published: 2015-11-04
album: chronicle
  type: MusicAlbum
  date published: 2015-11-04
album: chronicle
  type: MusicAlbum
  date published: 2015-11-04
album: Mr.LIFE
  type: MusicAlbum
  date published: 2016-11-02
album: Mr.LIFE
  type: MusicAlbum
  date published: 2016-11-02
album: モジャモジャライブコレクション vol.2
  type: MusicAlbum
  date published: 2017-11-29
album: モジャモジャライブコレクション vol.2
  type: MusicAlbum
  date published: 2017-11-29
album: 人間関係
  type: MusicAlbum
  date published: 2018-12-05
album: 人間関係
  type: MusicAlbum
  date published: 2018-12-05
album: THE PREVIOUS WORLD
  type: MusicAlbum
  date published: 2021-05-26
album: 光失えどその先へ
  type: MusicAlbum
  date published: 2021-05-26
album: 光失えどその先へ
  type: MusicAlbum
  date published: 2021-05-26
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  type: MusicAlbum
  date published: 2022-07-27
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  type: MusicAlbum
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album: １秒でも長く
  type: MusicAlbum
  date published: 2022-09-27
album: LOOP 8
  type: MusicAlbum
  date published: 2023-01-04
album: LIVE IN TRAD
  type: MusicAlbum
  date published: 2024-02-14
album: ドナーソング
  type: MusicAlbum
  date published: 2024-03-20
album: BANK-REMASTER
  type: MusicAlbum
  date published: 2025-02-14
album: ソングトラベル (2025 Remastered)
  type: MusicAlbum
  date published: 2025-08-27
album: さよならミッドナイト (2025 Remastered)
  type: MusicAlbum
  date published: 2025-08-27