Keisuke Wakao
type: MusicGroup
genre: chamber music
popularity: 4
followers: 140
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcd9b2c28593ed93d82f2fe58c60c994ff22c4307091dd56617a1f2a71ad171e9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/663f8ca1-bccb-4868-919a-4fa0f797f7ad.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/663f8ca1-bccb-4868-919a-4fa0f797f7ad.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/663f8ca1-bccb-4868-919a-4fa0f797f7ad
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcd9b2c28593ed93d82f2fe58c60c994ff22c4307091dd56617a1f2a71ad171e9","name":"Keisuke Wakao","registered_at":"2026-06-17T01:17:54Z","symbol":"NIM1235642","token_address":"0x28c00ded2ce6a6f39e1e5a78aa5796264f7b66e2","type":"artist","uuid":"663f8ca1-bccb-4868-919a-4fa0f797f7ad"}
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 0xcd9b2c28593ed93d82f2fe58c60c994ff22c4307091dd56617a1f2a71ad171e9. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/663f8ca1-bccb-4868-919a-4fa0f797f7ad.json and https://artists.proofprofile.net/proofs/artist/663f8ca1-bccb-4868-919a-4fa0f797f7ad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xcd9b2c28593ed93d82f2fe58c60c994ff22c4307091dd56617a1f2a71ad171e9","name":"Keisuke Wakao","registered_at":"2026-06-17T01:17:54Z","symbol":"NIM1235642","token_address":"0x28c00ded2ce6a6f39e1e5a78aa5796264f7b66e2","type":"artist","uuid":"663f8ca1-bccb-4868-919a-4fa0f797f7ad"}
album: 若尾圭介 プレイズ ジョン・ウィリアムス
  type: MusicAlbum
  date published: 1999
album: Bach / Mozart / Britten / Prokofiev: Oboe Music
  type: MusicAlbum
  date published: 2003-01-01
album: Bach / Mozart / Britten / Prokofiev: Oboe Music
  type: MusicAlbum
  date published: 2003-01-01