Historical retrospective · Layer 2
Plasma proposed child chains with mainnet dispute paths
Plasma designs move transaction execution to child chains while using Ethereum contracts for commitments and dispute resolution.
The approach sought to increase transaction capacity while retaining a security relationship with the base chain.
Plasma research influenced later rollup work and the wider search for scalable, verifiable execution.
Exit games and data availability are hard design problems; a scaling label alone does not explain user protection.
Primary source
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