📄️ Ethereum Finality
For context of the Sacred Timeline, see here
📄️ Rollups and Ethereum Security
Rollups scale Ethereum by offloading execution overhead to a different sequencer while inheriting Ethereum's security. They achieve this by:
📄️ Uniting Rollup (Block)space
Since every rollup block is anchored to a specific Ethereum block at a configurable depth—this block is known as the L1 origin. Depending on the L1 origin or L1 history that the L2 is derived from, the L2 block is technically produced sometime in the past as it’s generally the sum of both historical L1 and current L2 inputs.