OP_CCV embeds contract state directly into Taproot output keys and enforces valid state transitions onchain. This makes it possible to achieve stateful contracts and compact fraud proofs.
Bitcoin Covenants Part 5: MATT and OP_CHECKCONTRACTVERIFY — How Bitcoin could carry state across transactions
Home » Bitcoin Covenants Part 5: MATT and OP_CHECKCONTRACTVERIFY — How Bitcoin could carry state across transactions