Everyone, this is a concept you really need to understand: the two types of Rollup proofs!
Currently, most Rollups rely on a single sequencer to receive, order, and bundle user transactions. Users generally submit their transactions to the sequencer first.
The idea behind fraud proofs is “assume it’s correct first; investigate if someone challenges it.” As long as one honest participant keeps watch and challenges it in time, an incorrect result can’t slip through.
$ARB is the governance token of Arbitrum, an Optimistic Rollup network that uses fraud proofs. It’s currently at 0.162.
Save this and take your time reading it.

#ARB