OP_CAT

A serious attempt to bring Ethereum-like smart contract functionality to Bitcoin called OP_CAT has finally been granted a “BIP number:” 347. This is the first step towards actually launching the long-proposed software upgrade.“Getting a…

What is OP_CAT? In a nutshell, OP_CAT takes the top two values from a script stack, joins them, and then puts the result back onto the stack. This operation offers various scripting possibilities which was previously removed due to…

A Dive into the Reintroduction of a Classic Opcode The Bitcoin Improvement Proposal (BIP) 420 proposes reintroducing OP_CAT, a tapscript opcode that allows for the concatenation of two stack values. This capability, deactivated in…