Hiroshi Yonezawa
type: MusicGroup
genre: japanese classical
genre: traditional music
popularity: 2
followers: 25
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfed0fe38183627e3f63bc2601d078788925ea3b97379e2b555057912a715b46b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953932
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953932
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1fe34395-1d42-418f-8a20-e6ecbc51dbef.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1fe34395-1d42-418f-8a20-e6ecbc51dbef.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1fe34395-1d42-418f-8a20-e6ecbc51dbef
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T11:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfed0fe38183627e3f63bc2601d078788925ea3b97379e2b555057912a715b46b","name":"Hiroshi Yonezawa","registered_at":"2026-06-16T00:35:16Z","symbol":"NIM0881793","token_address":"0x06a979178e89de4c2a911a4f007c896d52d14051","type":"artist","uuid":"1fe34395-1d42-418f-8a20-e6ecbc51dbef"}
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 0xfed0fe38183627e3f63bc2601d078788925ea3b97379e2b555057912a715b46b. Chain 2 (Bitcoin): anchored in block 953932 (2026-06-16T11:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1fe34395-1d42-418f-8a20-e6ecbc51dbef.json and https://artists.proofprofile.net/proofs/artist/1fe34395-1d42-418f-8a20-e6ecbc51dbef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T11:10:43Z
  text: {"copyright_id":"0xfed0fe38183627e3f63bc2601d078788925ea3b97379e2b555057912a715b46b","name":"Hiroshi Yonezawa","registered_at":"2026-06-16T00:35:16Z","symbol":"NIM0881793","token_address":"0x06a979178e89de4c2a911a4f007c896d52d14051","type":"artist","uuid":"1fe34395-1d42-418f-8a20-e6ecbc51dbef"}
album: Nagasawa, Fukushima & Others: Chamber Works for Shakuhachi
  type: MusicAlbum
  date published: 2001
album: Athletic Shakuhachi Club 575
  type: MusicAlbum
  date published: 2002
album: Yoshimatsu, Akigishi & Others: Solo & Chamber Works
  type: MusicAlbum
  date published: 2003
album: Yorihide Fukushima: Arrangements for Shakuhachi
  type: MusicAlbum
  date published: 2004
album: Nagasawa, Fukushima & Others: Chamber Works for Shakuhachi
  type: MusicAlbum
  date published: 2019-08-02
album: Nostalgic Shakuhachi Club 575
  type: MusicAlbum
  date published: 2019-08-02
album: Yorihide Fukushima: Arrangements for Shakuhachi
  type: MusicAlbum
  date published: 2019-08-02
album: Yoshimatsu, Akigishi & Others: Solo & Chamber Works
  type: MusicAlbum
  date published: 2019-08-02