凱
type: MusicGroup
genre: boom bap
genre: j-rap
popularity: 2
followers: 68
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6e7c05bf0af2243117c54a0070412fa0172b958c3ac44c5c44caea40a9ec16f2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954500
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954500
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9af92479-6c12-42a2-a37f-b1df41e94860.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9af92479-6c12-42a2-a37f-b1df41e94860.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9af92479-6c12-42a2-a37f-b1df41e94860
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T04:47:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6e7c05bf0af2243117c54a0070412fa0172b958c3ac44c5c44caea40a9ec16f2","name":"凱","registered_at":"2026-06-20T03:39:11Z","symbol":"NIM1499900","token_address":"0xb6df215ad75582c34575782663409093f340c388","type":"artist","uuid":"9af92479-6c12-42a2-a37f-b1df41e94860"}
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 0x6e7c05bf0af2243117c54a0070412fa0172b958c3ac44c5c44caea40a9ec16f2. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9af92479-6c12-42a2-a37f-b1df41e94860.json and https://artists.proofprofile.net/proofs/artist/9af92479-6c12-42a2-a37f-b1df41e94860.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T04:47:29Z
  text: {"copyright_id":"0x6e7c05bf0af2243117c54a0070412fa0172b958c3ac44c5c44caea40a9ec16f2","name":"凱","registered_at":"2026-06-20T03:39:11Z","symbol":"NIM1499900","token_address":"0xb6df215ad75582c34575782663409093f340c388","type":"artist","uuid":"9af92479-6c12-42a2-a37f-b1df41e94860"}
album: FREAKY!
  type: MusicAlbum
  date published: 2024-04-05
album: Born it up
  type: MusicAlbum
  date published: 2024-09-22
album: Jaco's Idiom
  type: MusicAlbum
  date published: 2024-10-06
album: TRIUMPH
  type: MusicAlbum
  date published: 2025-10-15