Takeshy Kurosawa
type: MusicGroup
popularity: 3
followers: 79
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa7fc30538afd8247c73016d6f2b721271da9e13e67df2aa64392326352f9ffdd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953877
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953877
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/01cd7d4b-7d41-489c-8130-cf24fa5c9088.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/01cd7d4b-7d41-489c-8130-cf24fa5c9088.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/01cd7d4b-7d41-489c-8130-cf24fa5c9088
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:39:16Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa7fc30538afd8247c73016d6f2b721271da9e13e67df2aa64392326352f9ffdd","name":"Takeshy Kurosawa","registered_at":"2026-06-15T14:17:50Z","symbol":"NIM0734459","token_address":"0x4f7ed17a10a9e6f07a693902dd724fb3bc4650ad","type":"artist","uuid":"01cd7d4b-7d41-489c-8130-cf24fa5c9088"}
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 0xa7fc30538afd8247c73016d6f2b721271da9e13e67df2aa64392326352f9ffdd. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/01cd7d4b-7d41-489c-8130-cf24fa5c9088.json and https://artists.proofprofile.net/proofs/artist/01cd7d4b-7d41-489c-8130-cf24fa5c9088.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:39:16Z
  text: {"copyright_id":"0xa7fc30538afd8247c73016d6f2b721271da9e13e67df2aa64392326352f9ffdd","name":"Takeshy Kurosawa","registered_at":"2026-06-15T14:17:50Z","symbol":"NIM0734459","token_address":"0x4f7ed17a10a9e6f07a693902dd724fb3bc4650ad","type":"artist","uuid":"01cd7d4b-7d41-489c-8130-cf24fa5c9088"}
album: Block Off
  type: MusicAlbum
  date published: 2010-07-08
album: Open Your Eyes
  type: MusicAlbum
  date published: 2011-03-21
album: Let Me Go (feat. Mia J)
  type: MusicAlbum
  date published: 2012-06-26
album: Scraper
  type: MusicAlbum
  date published: 2012-12-03
album: Wassup
  type: MusicAlbum
  date published: 2018-06-11
album: Get Down + Sexy Show
  type: MusicAlbum
  date published: 2018-06-16
album: Open Your Eyes
  type: MusicAlbum
  date published: 2018-06-19
album: Open Your Eyes
  type: MusicAlbum
  date published: 2018-06-19