Bitcoin Tests Sixty-Three Thousand as China's Kimi K3 Rattles Markets and Cardano Decentralizes Development

July 18th, 2026: Bitcoin holds near sixty-three thousand nine hundred dollars as global markets digest China's Kimi K3 AI model release that triggered a one point eight trillion dollar equity selloff. We examine the semiconductor sector's bear market territory entry, CLARITY Act odds plunging to thirty-two percent amid Senate delays, and how crypto's correlation to tech stocks remains above eighty percent. Layer-one networks face pressure as Solana tests seventy-seven dollar support, Ethereum slips below eighteen hundred fifty, and altcoins shed eight point eight billion in market cap. Meanwhile, Cardano completes a historic decentralization milestone by transferring core development to external teams as Input Output exits day-to-day operations. Plus, SBI Holdings expands its Asian crypto empire with a Coinhako acquisition, Polymarket faces nationwide bans in France after insider trading concerns, and a White House aide's alleged one hundred thousand dollar prediction market profits spark regulatory scrutiny.