Stacks (STX) – Bitcoin's smart contract layer with unique security and DeFi growth – here's the latest: • Uses Proof of Transfer (PoX) to anchor all transactions to Bitcoin, achieving 100% Bitcoin finality post-Nakamoto upgrade (29 October 2024) • Features Clarity, a secure smart contract language, and sBTC for decentralized Bitcoin pegging with institutional custody support • Total DeFi TVL grew 97.6% to $164.2 million in Q2 2025, targeting $1 billion by year-end • STX has unlimited max supply with a transparent emission schedule; stacking offers 5-10% APY paid in Bitcoin • Major integrations include Circle's USDCx (November 2025) and Fireblocks for 2,400+ institutional clients (February 2026)

