Isshi Yamada
type: MusicGroup
genre: japanese classical
genre: traditional music
popularity: 2
followers: 498
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5c8d36ce47a5bde321a2b9eedf6dc477d7fba9c96f238404700e7180eb967a4b
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/710eda6b-1ba6-427a-b519-c78fe08d302a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/710eda6b-1ba6-427a-b519-c78fe08d302a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/710eda6b-1ba6-427a-b519-c78fe08d302a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5c8d36ce47a5bde321a2b9eedf6dc477d7fba9c96f238404700e7180eb967a4b","name":"Isshi Yamada","registered_at":"2026-06-17T05:05:08Z","symbol":"NIM1289892","token_address":"0x2193ab10e212ba703a7b7f66e2f00706ce59b010","type":"artist","uuid":"710eda6b-1ba6-427a-b519-c78fe08d302a"}
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 0x5c8d36ce47a5bde321a2b9eedf6dc477d7fba9c96f238404700e7180eb967a4b. 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/710eda6b-1ba6-427a-b519-c78fe08d302a.json and https://artists.proofprofile.net/proofs/artist/710eda6b-1ba6-427a-b519-c78fe08d302a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x5c8d36ce47a5bde321a2b9eedf6dc477d7fba9c96f238404700e7180eb967a4b","name":"Isshi Yamada","registered_at":"2026-06-17T05:05:08Z","symbol":"NIM1289892","token_address":"0x2193ab10e212ba703a7b7f66e2f00706ce59b010","type":"artist","uuid":"710eda6b-1ba6-427a-b519-c78fe08d302a"}
album: Koto: Music of the One-string Ichigenkin
  type: MusicAlbum
  date published: 1967-01-01