Ryuta Yamamoto
type: MusicGroup
popularity: 16
followers: 110
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc498f7fec74f275b83e2ff225c86f02d31e8ffde46b2ee08af023ad67d70d370
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953770
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953770
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bfa218e6-ca05-4e2e-b0f6-a7ef72522f45.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bfa218e6-ca05-4e2e-b0f6-a7ef72522f45.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bfa218e6-ca05-4e2e-b0f6-a7ef72522f45
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T09:50:11Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc498f7fec74f275b83e2ff225c86f02d31e8ffde46b2ee08af023ad67d70d370","name":"Ryuta Yamamoto","registered_at":"2026-06-15T00:39:06Z","symbol":"NIM0627327","token_address":"0xaa8402f0af7518bf0993ef063b340f476df5aa76","type":"artist","uuid":"bfa218e6-ca05-4e2e-b0f6-a7ef72522f45"}
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 0xc498f7fec74f275b83e2ff225c86f02d31e8ffde46b2ee08af023ad67d70d370. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bfa218e6-ca05-4e2e-b0f6-a7ef72522f45.json and https://artists.proofprofile.net/proofs/artist/bfa218e6-ca05-4e2e-b0f6-a7ef72522f45.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:57:35Z
  text: {"copyright_id":"0xc498f7fec74f275b83e2ff225c86f02d31e8ffde46b2ee08af023ad67d70d370","name":"Ryuta Yamamoto","registered_at":"2026-06-15T00:39:06Z","symbol":"NIM0627327","token_address":"0xaa8402f0af7518bf0993ef063b340f476df5aa76","type":"artist","uuid":"bfa218e6-ca05-4e2e-b0f6-a7ef72522f45"}
album: I'm On the Road Again
  type: MusicAlbum
  date published: 2010-11-11