Alex Buchanan—generally known by his stage name Kingkade—is an English DJ and progressive house music producer. He began DJing in 1997, in Liverpool before spreading to other clubnights around the UK
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa002d9118b194d5483bd2460a55cf6677ff7d0e355d24c05fe3086708bc3d5b7. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9e50e875-edad-47b0-ab01-f72581e60512.json and https://artists.proofprofile.net/proofs/artist/9e50e875-edad-47b0-ab01-f72581e60512.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).