Dupla Kay
type: MusicGroup
genre: amapiano
genre: private school piano
popularity: 22
followers: 391
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbd446feffcbe2fe8df33ffb55623f82dd275e6cf57df3464a7870dfb27a76eb7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bbe9ccb6-bca0-4842-9dcb-051f65a7ca84.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bbe9ccb6-bca0-4842-9dcb-051f65a7ca84.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bbe9ccb6-bca0-4842-9dcb-051f65a7ca84
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbd446feffcbe2fe8df33ffb55623f82dd275e6cf57df3464a7870dfb27a76eb7","name":"Dupla Kay","registered_at":"2026-06-12T08:29:11Z","symbol":"NIM0242411","token_address":"0x38ca1b101196ed4e1ea31275a66eb3d28e62f774","type":"artist","uuid":"bbe9ccb6-bca0-4842-9dcb-051f65a7ca84"}
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 0xbd446feffcbe2fe8df33ffb55623f82dd275e6cf57df3464a7870dfb27a76eb7. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bbe9ccb6-bca0-4842-9dcb-051f65a7ca84.json and https://artists.proofprofile.net/proofs/artist/bbe9ccb6-bca0-4842-9dcb-051f65a7ca84.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xbd446feffcbe2fe8df33ffb55623f82dd275e6cf57df3464a7870dfb27a76eb7","name":"Dupla Kay","registered_at":"2026-06-12T08:29:11Z","symbol":"NIM0242411","token_address":"0x38ca1b101196ed4e1ea31275a66eb3d28e62f774","type":"artist","uuid":"bbe9ccb6-bca0-4842-9dcb-051f65a7ca84"}
album: Umphakathi (Tribute)
  type: MusicAlbum
  date published: 2025-04-25