1. CAT and Schnorr Tricks II

    Wed 10 February 2021 By Andrew Poelstra

    Part 1

    Introduction

    This is the second in a series of posts about about covenants in Bitcoin using Taproot and a (hypothetical) CAT opcode. Historically, and as has been implemented in Elements, CAT has been considered to be a covenant opcode only in conjunction with CHECKSIGFROMSTACK.

    In our last post …

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  2. CAT and Schnorr Tricks I

    Wed 20 January 2021 By Andrew Poelstra

    Part 2

    Introduction

    This is the first in a series of posts about about covenants in Bitcoin using Taproot and a (hypothetical) CAT opcode. Historically, and as has been implemented in Elements, CAT has been considered to be a covenant opcode only in conjunction with CHECKSIGFROMSTACK. In this post, which …

    read more