$NAT is the "second subsidy" for Bitcoin miners. Every time a miner mines a Bitcoin block, in addition to earning a 3.125 BTC reward, they also automatically receive 386 million $NAT tokens as extra incentive. This addresses the structural challenge of increasing income pressure on miners after Bitcoin's halving—industry-wide skepticism about the assumption that "network security can be maintained solely through price appreciation." No additional computing power is needed, no intermediary intervention is required—this is the native design of the decentralized incentive layer.