Thread by @bkiepuszewski

1/ Another week, another Rollup on Ethereum launched. Short thread about what is Metis Andromeda Rollup from @MetisDAO 🧵👇

https://twitter.com/l2beatcom/status/1464277148424888324?s=20

2/ If you are more interested in a project vision, especially "DACs", roadmap, etc... you can find more strategy and marketing-oriented resources on the web, this is a quick peek of what was deployed and launched on the 18th of Nov

3/ Metis under the hood is another fork of @optimismPBC - expect more of these to come in the future. The main difference is that @MetisDAO plans to launch multiple "instances" of L2 rollups

4/ All of these L2 chains will share the same L1 smart contract infrastructure and the plan is that they will be "natively" interconnected. So the original @optimismPBC contracts are enhanced to support multi-instance deployment

5/ Each of these "instances" may have their own specific fraud verifier, depending on actual needs. Each may have different fraud proof window. It's all highly customisable and will be managed by the @MetisDAO

6/ The current deployment, Metis "Andromeda" is the main, "default", L2 chain that is deployed and launched first. Similarly to other Optimism-based rollups, currently there is no on-chain fraud proof system (this system is still being actively developed by the @optimismPBC team)

7/ But rather then just trusting centralised Sequencer, Metis allows for any staked (with $METIS token) Validator to challenge the state root submitted by the Sequencer. Once challenge is submitted, other Validators need to "vote" on what is the correct state root

8/ The full "consensus" logic is pretty simple and anyone interested can inspect it here github.com/MetisProtocol/…

9/ If the challenge is "won", Sequencer is slashed and state root is reverted. It's worth noting thought that until proper L1 fraud proof system is deployed, the security of users' funds entirely depend on the honesty of Validators checking the Sequencer's commits.

10/ Congrats to @MetisDAO for the launch and good luck with growing the ecosystem. It is clear that multi-rollup, modular ecosystem with Ethereum L1 as a settlement layer is quickly becoming a reality 🚀