雅
type: MusicGroup
genre: j-rap
popularity: 18
followers: 847
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc76b326e2160701d93e87e76db7ea0789925271b270b1450563e2ab4710ee139
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953674
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953674
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5a0ea882-0c63-429e-9aff-2495b0578b25.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5a0ea882-0c63-429e-9aff-2495b0578b25.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5a0ea882-0c63-429e-9aff-2495b0578b25
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T19:07:16Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc76b326e2160701d93e87e76db7ea0789925271b270b1450563e2ab4710ee139","name":"雅","registered_at":"2026-06-14T13:53:42Z","symbol":"NIM0473359","token_address":"0xc508f2108222f3b3fe55f612fcf00fbe3eee40c0","type":"artist","uuid":"5a0ea882-0c63-429e-9aff-2495b0578b25"}
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 0xc76b326e2160701d93e87e76db7ea0789925271b270b1450563e2ab4710ee139. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5a0ea882-0c63-429e-9aff-2495b0578b25.json and https://artists.proofprofile.net/proofs/artist/5a0ea882-0c63-429e-9aff-2495b0578b25.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T22:00:24Z
  text: {"copyright_id":"0xc76b326e2160701d93e87e76db7ea0789925271b270b1450563e2ab4710ee139","name":"雅","registered_at":"2026-06-14T13:53:42Z","symbol":"NIM0473359","token_address":"0xc508f2108222f3b3fe55f612fcf00fbe3eee40c0","type":"artist","uuid":"5a0ea882-0c63-429e-9aff-2495b0578b25"}
album: ゼロカラカンパニーコンピレーション「挑戦」〜universe〜
  type: MusicAlbum
  date published: 2024-04-21