The mere introduction of this opcode would allow covenants, ZK-rollups and native L2 to be added to Bitcoin. OP_CAT was removed after an event known as the value overflow incident, which occurred in 2010. Today, the main development problem of ...
Bitcoin PIPE, a proposal by Mikhail Komarov, seeks to implement Covenants and Zero Proof of Knowledge (ZKP) in Bitcoin without requiring a soft fork in the network. These programmings would bring privacy benefits (SNARK tests) and usability in Bitcoin, through ...