Technical principles: the two proof systems of Rollup
The idea behind fraud proofs is "assume it's correct first; if someone questions it, then check it." As long as there is one honest participant watching and challenging in time, incorrect results cannot slip through.
Before withdrawing from an Optimistic Rollup, account for about a one-week challenge period; if you need funds urgently, don’t wait until the last minute to use the official bridge.
$ARB is the governance token of Arbitrum, an Optimistic Rollup network that uses fraud proofs. Current price: 0.1882.
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