Hiro Kimura
type: MusicGroup
popularity: 2
followers: 70
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9350bb3cf4dfaccbcdb6a3ec020e3bf25b99e8dc2edefa378891a4e88d427345
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ef606c0e-55a9-432e-84b8-46851ab9e863.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ef606c0e-55a9-432e-84b8-46851ab9e863.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ef606c0e-55a9-432e-84b8-46851ab9e863
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9350bb3cf4dfaccbcdb6a3ec020e3bf25b99e8dc2edefa378891a4e88d427345","name":"Hiro Kimura","registered_at":"2026-06-21T12:30:52Z","symbol":"NIM1923500","token_address":"0xc4c438d2776a531e175d46d2ac4bc26f0ea35702","type":"artist","uuid":"ef606c0e-55a9-432e-84b8-46851ab9e863"}
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 0x9350bb3cf4dfaccbcdb6a3ec020e3bf25b99e8dc2edefa378891a4e88d427345. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ef606c0e-55a9-432e-84b8-46851ab9e863.json and https://artists.proofprofile.net/proofs/artist/ef606c0e-55a9-432e-84b8-46851ab9e863.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0x9350bb3cf4dfaccbcdb6a3ec020e3bf25b99e8dc2edefa378891a4e88d427345","name":"Hiro Kimura","registered_at":"2026-06-21T12:30:52Z","symbol":"NIM1923500","token_address":"0xc4c438d2776a531e175d46d2ac4bc26f0ea35702","type":"artist","uuid":"ef606c0e-55a9-432e-84b8-46851ab9e863"}
album: TREES
  type: MusicAlbum
  date published: 2021-09-29
album: Catch The Flow (feat. Akiha Nakashima, Mamoru Ishida & Keisuke Furuki)
  type: MusicAlbum
  date published: 2021-12-22
album: Steam Engine (feat. Tomoaki Baba, Yusuke Sase, Shota Watanabe & Keisuke Furuki)
  type: MusicAlbum
  date published: 2022-02-23
album: Branches (feat. Shota Watanabe & Keisuke Furuki)
  type: MusicAlbum
  date published: 2022-03-16
album: Blue Lights (feat. Yusuke Sase, Tomoaki Baba, Shota Watanabe & Keisuke Furuki)
  type: MusicAlbum
  date published: 2022-04-27
album: Someday My Prince Will Come (Live at 100Ban Hall, Kobe, 2022)
  type: MusicAlbum
  date published: 2023-03-06
album: Folds (Live at 100BAN Hall, Kobe, 2022)
  type: MusicAlbum
  date published: 2023-04-12
album: Long Way (feat. Yusuke Sase, Tomoaki Baba, Shota Watanabe & Keisuke Furuki)
  type: MusicAlbum
  date published: 2023-05-31