Ethereum
Layer 1, Rollups and Sidechains: The Key Differences
The Defiant·November 12, 2026·1 min read
Ethereum, OP Mainnet, Linea, and Polygon PoS differ in where transactions run, how checks are performed, settlement finality, and withdrawal wait times. Layer 1 offers full security but slower finality, while rollups and sidechains trade off for speed and cost.
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