前野曜子
type: MusicGroup
genre: city pop
popularity: 3
followers: 375
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x02ad5004a34354edc65976bc8fae193ed3fc83fe6a52ce5b56c4b2bdb19fc1fc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954623
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954623
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cb2277fd-909e-4a44-b6ed-c298b8eadca2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cb2277fd-909e-4a44-b6ed-c298b8eadca2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cb2277fd-909e-4a44-b6ed-c298b8eadca2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:40:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x02ad5004a34354edc65976bc8fae193ed3fc83fe6a52ce5b56c4b2bdb19fc1fc","name":"前野曜子","registered_at":"2026-06-20T23:01:34Z","symbol":"NIM1740862","token_address":"0xe468bbdc32add1f90a9dbd744e9c9f91b8aa7a78","type":"artist","uuid":"cb2277fd-909e-4a44-b6ed-c298b8eadca2"}
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 0x02ad5004a34354edc65976bc8fae193ed3fc83fe6a52ce5b56c4b2bdb19fc1fc. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb2277fd-909e-4a44-b6ed-c298b8eadca2.json and https://artists.proofprofile.net/proofs/artist/cb2277fd-909e-4a44-b6ed-c298b8eadca2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:40:06Z
  text: {"copyright_id":"0x02ad5004a34354edc65976bc8fae193ed3fc83fe6a52ce5b56c4b2bdb19fc1fc","name":"前野曜子","registered_at":"2026-06-20T23:01:34Z","symbol":"NIM1740862","token_address":"0xe468bbdc32add1f90a9dbd744e9c9f91b8aa7a78","type":"artist","uuid":"cb2277fd-909e-4a44-b6ed-c298b8eadca2"}
album: Alone
  type: MusicAlbum
  date published: 1981-12-25
album: Twilight
  type: MusicAlbum
  date published: 1982-08-21