Layer 2 —Optimism

0x01 preview

0x02 what is Optimism rollup?

  1. data compression: a batch takes up less space than individual txns stacked on top of each other.
  2. you only have to go through Ethereum’s slow and expensive consensus only once.

0x03 functions of Optimism contract

  1. a 2-way bridge to move money between L1 and L2
  2. processing transactions and rolling them up into a batch
  3. disputes/proof of invalid state update

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