#Bitcoin Script

OP_CSFS and OP_CAT Enable Bitcoin Covenants Without New Consensus Rules

Bitcoin’s OP_CSFS and OP_CAT opcodes allow scripts to enforce spending conditions and verify transaction layouts, advancing trust-minimized covenants natively.

Bitcoin Covenants: 12 Competing Proposals Aim to Unlock Complex Spending Rules

Bitcoin covenant proposals—twelve competing designs—seek to add complex spending conditions to the network, a long-missing feature that could expand Bitcoin's smart contract…