Hirofumi Araki
type: MusicGroup
description: is a Japanese actor and singer associated with Watanabe Entertainment. He is a member of the acting troupe D-Boys and the leader of its pop unit D-Date."D☆DATE avex公式サイト" (in Japanese). Avex. Retrie
popularity: 4
followers: 1459
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd936fa429d3f77e0a7d8af1c00b1e8e5cd307462cbd3a35cc84ce69bdf9e00e9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e3b53459-fb05-410f-9294-7a0a966217b0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e3b53459-fb05-410f-9294-7a0a966217b0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e3b53459-fb05-410f-9294-7a0a966217b0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd936fa429d3f77e0a7d8af1c00b1e8e5cd307462cbd3a35cc84ce69bdf9e00e9","name":"Hirofumi Araki","registered_at":"2026-06-21T07:59:43Z","symbol":"NIM1868841","token_address":"0x3812f75943c11d538b2d1cac22892ce601fa7b04","type":"artist","uuid":"e3b53459-fb05-410f-9294-7a0a966217b0"}
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 0xd936fa429d3f77e0a7d8af1c00b1e8e5cd307462cbd3a35cc84ce69bdf9e00e9. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e3b53459-fb05-410f-9294-7a0a966217b0.json and https://artists.proofprofile.net/proofs/artist/e3b53459-fb05-410f-9294-7a0a966217b0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xd936fa429d3f77e0a7d8af1c00b1e8e5cd307462cbd3a35cc84ce69bdf9e00e9","name":"Hirofumi Araki","registered_at":"2026-06-21T07:59:43Z","symbol":"NIM1868841","token_address":"0x3812f75943c11d538b2d1cac22892ce601fa7b04","type":"artist","uuid":"e3b53459-fb05-410f-9294-7a0a966217b0"}
album: Next Stage
  type: MusicAlbum
  date published: 2015-04-01
album: STELLAR
  type: MusicAlbum
  date published: 2016-02-10
album: History
  type: MusicAlbum
  date published: 2020-07-15
album: History
  type: MusicAlbum
  date published: 2020-07-15
album: History
  type: MusicAlbum
  date published: 2020-08-05
album: History
  type: MusicAlbum
  date published: 2020-08-05