Kell Kay
type: MusicGroup
description: Kelvin Kambwiri (born May 20, 1993), best known as Kell Kay, is a Malawian RnB artist and songwriter. He was born and raised in Lilongwe,Malawi. In 2017 and 2018, he won a Nyasa Music Award as Best R&
popularity: 2
followers: 57
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0bb5f1a7c934550e2d95022376abc45756de9dc27c4b45e54c9e3dd0cfd1e59a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fefa2017-4f09-4619-a03d-5b42f8fa9027.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fefa2017-4f09-4619-a03d-5b42f8fa9027.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fefa2017-4f09-4619-a03d-5b42f8fa9027
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T20:46:40Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0bb5f1a7c934550e2d95022376abc45756de9dc27c4b45e54c9e3dd0cfd1e59a","name":"Kell Kay","registered_at":"2026-06-21T18:27:59Z","symbol":"NIM2001060","token_address":"0x7aa0b23219b498ff966c618885399d2987561a4d","type":"artist","uuid":"fefa2017-4f09-4619-a03d-5b42f8fa9027"}
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 0x0bb5f1a7c934550e2d95022376abc45756de9dc27c4b45e54c9e3dd0cfd1e59a. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fefa2017-4f09-4619-a03d-5b42f8fa9027.json and https://artists.proofprofile.net/proofs/artist/fefa2017-4f09-4619-a03d-5b42f8fa9027.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T20:46:40Z
  text: {"copyright_id":"0x0bb5f1a7c934550e2d95022376abc45756de9dc27c4b45e54c9e3dd0cfd1e59a","name":"Kell Kay","registered_at":"2026-06-21T18:27:59Z","symbol":"NIM2001060","token_address":"0x7aa0b23219b498ff966c618885399d2987561a4d","type":"artist","uuid":"fefa2017-4f09-4619-a03d-5b42f8fa9027"}