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Wednesday, September 9, 2026 · Global Edition
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L4 News — BLOCKCHAIN · WEB3 · ASSETS

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Blockchain

Blockchain

Layer 1 vs Layer 2, explained

Layer 1 is the base chain where everything settles; Layer 2 is built on top of it — the Layer 1 vs Layer 2 distinction, in plain words.

June 30, 2026

Web3

Security

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Infographic splitting a gas fee into base fee and priority tip
Web3

What are gas fees, and why do they change?

Gas fees are auction prices for scarce block space. Here is the mechanism behind the number — including what Ethereum's 2021 EIP-1559 change did and did not…

April 25, 2026