Jack Kahui, professionally known as Kahukx, is an Australian rapper and musician. Kahukx released his debut EP in May 2023. Career In January 2022, Kahukx released his debut single "Due Time". The so
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5754cdfd9404685141d896268f7abacd8f534889810465cb483ecdcebb725bfd. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ee6e114e-1b16-4c19-afa4-0ca0bac1c56a.json and https://artists.proofprofile.net/proofs/artist/ee6e114e-1b16-4c19-afa4-0ca0bac1c56a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).