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Delphi Digital
@delphi-digital
The Purr-fect Opcode: OP_CAT’s Hidden Talents BTC script is not able to ‘see’ the transaction details and validate them against conditions apart from simpler ones. ➡️This property is called introspection, where the script is able to have access to tx details. A combination of OP_CAT & Schnorr signatures allows a degree of transaction introspection onto the stack: this can be used to construct recursive covenants, vaults, and more. @TaprootWizards' CatVM uses OP_CAT, Schnorr sigs, and Merkle trees. Unlike other BTC programmability methods, it will rely on OP_CAT opcode adoption via a BTC soft fork to go live. The result is a MATT-like mechanism but needs just OP_CAT.
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Delphi Digital
@delphi-digital
CatVM Vaults 🐱 Vaults use OP_CAT opcode and Schnorr signatures, to enforce strict rules on fund movements. It can be modified so that the funds are dependent on results of state machine execution. This could be a challenge-response mechanism that uses MATT, Merkle trees to commit to execution trace. Any program can be run off-chain and settled on-chain, controlling the movement of funds. ⤵️
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