1/7 @build_on_bob is the first Hybrid ZK Rollup, combining optimistic execution with zero-knowledge fraud proofs in a live system that actually works. 

And yes, it’s already live! https://t.co/R8MlNMVSGM

2/7
Withdrawals don’t take a week anymore - just a few hours. ZK proofs aren’t used unless someone challenges the result, so you’re not wasting time or gas for no reason.

3/7 
It’s built on Optimism, but without the slow exit queue. And unlike typical ZK rollups, there’s no extra consensus system duct-taped to the side just to make it work.

4/7 
No other rollup actually combined optimistic execution with zero-knowledge fraud resolution before. This isn’t a demo or research paper, and it’s already working in production.

L2BEAT is an open source, public-good analytics and resrarch platform dedicated to L2 scaling solutions. ❤️

7/7 Bitcoin is still secure, and now, thanks to $BOB, it’s actually fast without giving up what makes it trustworthy in the first place.

Here’s the full writeup with the details, the math, and how it all fits together:
https://t.co/ueWgXnV8Ld

Did you expect ZK to be used this way?

5/7 You don’t need deep pockets to challenge the system, half an ETH is enough to keep it honest. On Base or Arbitrum, that same challenge could cost hundreds.

6/7 BOB is also on its way to Stage 1 and 2 status on @l2beat, starting with a security council and eventually opening governance proposals to everyone. There are no multisigs or trusted committees hiding behind the curtain.