United States · Macro, forex & crypto · Cointelegraph
Bitcoin Covenants Part 5: MATT and OP_CHECKCONTRACTVERIFY — How Bitcoin could carry state across transactions
Detailed summary
OP_CHECKCONTRACTVERIFY tweaks a Taproot output key to commit to contract state, letting scripts verify the old state and enforce the new one at spend time. Read how OP_CCV and OP_CAT enable stateful contracts, vaults and fraud proofs on Bitcoin.
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