Yukihiro Kamiya (CV: Sho Karino)
type: MusicGroup
popularity: 3
followers: 35
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x18781764803dec1e1f6452d4259c5546838e245fbba10f9b65de4e76bb19aef5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/91a0b3a9-4871-4511-ac0d-19f605739762.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/91a0b3a9-4871-4511-ac0d-19f605739762.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/91a0b3a9-4871-4511-ac0d-19f605739762
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x18781764803dec1e1f6452d4259c5546838e245fbba10f9b65de4e76bb19aef5","name":"Yukihiro Kamiya (CV: Sho Karino)","registered_at":"2026-06-17T16:13:50Z","symbol":"NIM1449303","token_address":"0xc4a5bb077ba307174cc981844ddb7f5a6523d24d","type":"artist","uuid":"91a0b3a9-4871-4511-ac0d-19f605739762"}
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 0x18781764803dec1e1f6452d4259c5546838e245fbba10f9b65de4e76bb19aef5. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/91a0b3a9-4871-4511-ac0d-19f605739762.json and https://artists.proofprofile.net/proofs/artist/91a0b3a9-4871-4511-ac0d-19f605739762.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x18781764803dec1e1f6452d4259c5546838e245fbba10f9b65de4e76bb19aef5","name":"Yukihiro Kamiya (CV: Sho Karino)","registered_at":"2026-06-17T16:13:50Z","symbol":"NIM1449303","token_address":"0xc4a5bb077ba307174cc981844ddb7f5a6523d24d","type":"artist","uuid":"91a0b3a9-4871-4511-ac0d-19f605739762"}
album: THE IDOLM@STER SideM WORLD TRE@SURE 09
  type: MusicAlbum
  date published: 2019-08-07