中川晃教
type: MusicGroup
genre: j-r&b
popularity: 8
followers: 712
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeb5face77c068bfb260cde70d6fcefb17a2b23ece4942b31f9cb5fdcacc23a85
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bcd08a1a-b5c1-4445-9d12-56979b14695b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bcd08a1a-b5c1-4445-9d12-56979b14695b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bcd08a1a-b5c1-4445-9d12-56979b14695b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xeb5face77c068bfb260cde70d6fcefb17a2b23ece4942b31f9cb5fdcacc23a85","name":"中川晃教","registered_at":"2026-06-20T17:36:16Z","symbol":"NIM1669620","token_address":"0x9fadbd485a1948cfec8cdfa333e7d99471e67f3a","type":"artist","uuid":"bcd08a1a-b5c1-4445-9d12-56979b14695b"}
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 0xeb5face77c068bfb260cde70d6fcefb17a2b23ece4942b31f9cb5fdcacc23a85. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bcd08a1a-b5c1-4445-9d12-56979b14695b.json and https://artists.proofprofile.net/proofs/artist/bcd08a1a-b5c1-4445-9d12-56979b14695b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xeb5face77c068bfb260cde70d6fcefb17a2b23ece4942b31f9cb5fdcacc23a85","name":"中川晃教","registered_at":"2026-06-20T17:36:16Z","symbol":"NIM1669620","token_address":"0x9fadbd485a1948cfec8cdfa333e7d99471e67f3a","type":"artist","uuid":"bcd08a1a-b5c1-4445-9d12-56979b14695b"}
album: ”POPSSIC” 中川晃教コンサート2012
  type: MusicAlbum
  date published: 2012-12-28
album: Akinori Nakagawa's THE WIZ
  type: MusicAlbum
  date published: 2013-10-23
album: I Sing 2015 Versus Guitar & Percussion
  type: MusicAlbum
  date published: 2016-03-09
album: 中川晃教 弾き語りコンサート2016
  type: MusicAlbum
  date published: 2019-02-20