アントニオ古賀
type: MusicGroup
genre: enka
genre: kayokyoku
popularity: 3
followers: 16
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa34474b2c47ac1fb7cf7ac1072142bc0c929ccfcbd6c02eb60f4705465b5fff8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954058
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954058
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/457958ee-5ec9-4df2-86fc-6715d73bf279.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/457958ee-5ec9-4df2-86fc-6715d73bf279.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/457958ee-5ec9-4df2-86fc-6715d73bf279
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T06:34:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa34474b2c47ac1fb7cf7ac1072142bc0c929ccfcbd6c02eb60f4705465b5fff8","name":"アントニオ古賀","registered_at":"2026-06-16T13:46:58Z","symbol":"NIM1070795","token_address":"0x72e02e48d786b2e18e1e4796a1e19d82d4f6491c","type":"artist","uuid":"457958ee-5ec9-4df2-86fc-6715d73bf279"}
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 0xa34474b2c47ac1fb7cf7ac1072142bc0c929ccfcbd6c02eb60f4705465b5fff8. Chain 2 (Bitcoin): anchored in block 954058 (2026-06-17T06:34:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/457958ee-5ec9-4df2-86fc-6715d73bf279.json and https://artists.proofprofile.net/proofs/artist/457958ee-5ec9-4df2-86fc-6715d73bf279.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T06:34:31Z
  text: {"copyright_id":"0xa34474b2c47ac1fb7cf7ac1072142bc0c929ccfcbd6c02eb60f4705465b5fff8","name":"アントニオ古賀","registered_at":"2026-06-16T13:46:58Z","symbol":"NIM1070795","token_address":"0x72e02e48d786b2e18e1e4796a1e19d82d4f6491c","type":"artist","uuid":"457958ee-5ec9-4df2-86fc-6715d73bf279"}
album: アントニオ古賀 ギタ―の世界〜デビュー３０周年記念〜
  type: MusicAlbum
  date published: 1989-10-21
album: アントニオ古賀 ギター・ソロ 古賀メロディ・アルバム
  type: MusicAlbum
  date published: 1994-10-21
album: 古城の四季
  type: MusicAlbum
  date published: 1998-04-21
album: 古賀メロセレクション 想い出のあの歌この歌
  type: MusicAlbum
  date published: 1998-05-21
album: 一つ星
  type: MusicAlbum
  date published: 1999-05-29