🅱️Bitcoin OP_CAT Upgrade: Can Revived Satoshi Code Transform the Top Blockchain?

Could OP_CAT, called BIP-420 by some, be transformative for Bitcoin? Here's what developers think of the fiercely debated potential upgrade.

Bitcoin’s developer ecosystem is the hottest it has been in years. Projects, tools, and proposals to unlock new decentralized applications for the OG crypto network are now part of the mainstream Bitcoin conversation.

One proposal central to that conversation is BIP-347, or “OP_CAT”—though called BIP-420 by some proponents—a potential soft fork upgrade that proponents think could supercharge Bitcoin’s capabilities.

At a bare-bones level, what OP_CAT does is allow users to join, or “concatenate,” two pieces of data within a stack. It then places those values on top of the stack, making them the first items acted on within a transaction.