Kéji
type: MusicGroup
popularity: 3
followers: 84
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe8b5a8b8f09aa010eca643e3b25ce7fdb717c7b40ac212b498878d6369ecd7b2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cdaf9a1e-88aa-4b8c-a987-d71340c60f9c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cdaf9a1e-88aa-4b8c-a987-d71340c60f9c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cdaf9a1e-88aa-4b8c-a987-d71340c60f9c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe8b5a8b8f09aa010eca643e3b25ce7fdb717c7b40ac212b498878d6369ecd7b2","name":"Kéji","registered_at":"2026-06-20T23:40:32Z","symbol":"NIM1750739","token_address":"0x0f00a17de0f788edaa621054d3d36aa1c90095d7","type":"artist","uuid":"cdaf9a1e-88aa-4b8c-a987-d71340c60f9c"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b5a8b8f09aa010eca643e3b25ce7fdb717c7b40ac212b498878d6369ecd7b2. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cdaf9a1e-88aa-4b8c-a987-d71340c60f9c.json and https://artists.proofprofile.net/proofs/artist/cdaf9a1e-88aa-4b8c-a987-d71340c60f9c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0xe8b5a8b8f09aa010eca643e3b25ce7fdb717c7b40ac212b498878d6369ecd7b2","name":"Kéji","registered_at":"2026-06-20T23:40:32Z","symbol":"NIM1750739","token_address":"0x0f00a17de0f788edaa621054d3d36aa1c90095d7","type":"artist","uuid":"cdaf9a1e-88aa-4b8c-a987-d71340c60f9c"}
album: Gimme Love
  type: MusicAlbum
  date published: 2024-03-08
album: ME ME ME
  type: MusicAlbum
  date published: 2025-01-03
album: Like It Or Not
  type: MusicAlbum
  date published: 2025-01-31