河野陽吾
type: MusicGroup
popularity: 7
followers: 129
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1c1c9141b3bea3a1d5c6ae8efaec6736da16f9924b5bbd80d4f0236214529b7c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954638
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954638
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d4cd198b-7e8d-4c0f-b99e-567821df677c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d4cd198b-7e8d-4c0f-b99e-567821df677c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d4cd198b-7e8d-4c0f-b99e-567821df677c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T03:45:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1c1c9141b3bea3a1d5c6ae8efaec6736da16f9924b5bbd80d4f0236214529b7c","name":"河野陽吾","registered_at":"2026-06-21T02:14:57Z","symbol":"NIM1788638","token_address":"0x17b644ad00678ccb9b7139b63deaaa81d4615649","type":"artist","uuid":"d4cd198b-7e8d-4c0f-b99e-567821df677c"}
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 0x1c1c9141b3bea3a1d5c6ae8efaec6736da16f9924b5bbd80d4f0236214529b7c. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4cd198b-7e8d-4c0f-b99e-567821df677c.json and https://artists.proofprofile.net/proofs/artist/d4cd198b-7e8d-4c0f-b99e-567821df677c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T03:45:44Z
  text: {"copyright_id":"0x1c1c9141b3bea3a1d5c6ae8efaec6736da16f9924b5bbd80d4f0236214529b7c","name":"河野陽吾","registered_at":"2026-06-21T02:14:57Z","symbol":"NIM1788638","token_address":"0x17b644ad00678ccb9b7139b63deaaa81d4615649","type":"artist","uuid":"d4cd198b-7e8d-4c0f-b99e-567821df677c"}
album: Yohgo Kohno Sound Track Vol.3
  type: MusicAlbum
  date published: 2018-08-15
album: Hey!
  type: MusicAlbum
  date published: 2019-04-05
album: OUTTAKES
  type: MusicAlbum
  date published: 2020-12-08
album: OUTTAKES INSTRUMENTAL
  type: MusicAlbum
  date published: 2020-12-08
album: A TRIBUTE TO J-SONGS For My Favorite SongBook page2 (Karaoke)
  type: MusicAlbum
  date published: 2023-12-18
album: A TRIBUTE TO J-SONGS For My Favorite SongBook page2 (Instrumental)
  type: MusicAlbum
  date published: 2023-12-18
album: A TRIBUTE TO J-SONGS For My Favorite SongBook page2
  type: MusicAlbum
  date published: 2023-12-18