Yasunori Kawahara
type: MusicGroup
genre: bass music
genre: chamber music
popularity: 2
followers: 82
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x934b2a45ba0b6eef835d8faa2aa491d1dc8e2420e8dc43b7cb9442bb7a0f7930
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954014
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954014
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/330e9db4-d83e-4fe5-9395-e3621e03d94a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/330e9db4-d83e-4fe5-9395-e3621e03d94a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/330e9db4-d83e-4fe5-9395-e3621e03d94a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T22:46:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x934b2a45ba0b6eef835d8faa2aa491d1dc8e2420e8dc43b7cb9442bb7a0f7930","name":"Yasunori Kawahara","registered_at":"2026-06-16T07:23:51Z","symbol":"NIM0979386","token_address":"0x66c938c6f38cac36033fc7f083d6af536896a454","type":"artist","uuid":"330e9db4-d83e-4fe5-9395-e3621e03d94a"}
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 0x934b2a45ba0b6eef835d8faa2aa491d1dc8e2420e8dc43b7cb9442bb7a0f7930. 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/330e9db4-d83e-4fe5-9395-e3621e03d94a.json and https://artists.proofprofile.net/proofs/artist/330e9db4-d83e-4fe5-9395-e3621e03d94a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x934b2a45ba0b6eef835d8faa2aa491d1dc8e2420e8dc43b7cb9442bb7a0f7930","name":"Yasunori Kawahara","registered_at":"2026-06-16T07:23:51Z","symbol":"NIM0979386","token_address":"0x66c938c6f38cac36033fc7f083d6af536896a454","type":"artist","uuid":"330e9db4-d83e-4fe5-9395-e3621e03d94a"}
album: Fantasy On Double-Bass
  type: MusicAlbum
  date published: 2012-07-11
album: Soul Of Double Bass
  type: MusicAlbum
  date published: 2012-07-11