Lightning Network hacker Burak introduces new Bitcoin layer 2, Brollups
Burak, the developer who hacked Bitcoins Lightning Network with a 998-of-999 multi-signature Taproot transaction, has created a new Bitcoin layer 2. It has no proprietary token and does not require any fork.

It’s dubbed ‘Brollups’ — a portmanteau of either ‘Burak’ and ‘rollup’ or ‘bro’ and ‘rollup.’ 

A rollup is a bundle of transactions that occur off-blockchain. They’re ‘rolled-up’ into a consolidated file and mined on-chain. Also known as a ‘layer 2,’ they’re essentially separate blockchains that borrow security and value from a base, ‘layer 1’ blockchain like Bitcoin.