Latest revision · v0.2.1
L2
Rollups, explained: how Base settles on Ethereum
A plain guide to what a rollup is, how it posts data to Ethereum, how withdrawals are challenged, and how Base sets its own withdrawal window.
Le Coin / Learning Hub
Learning Hub
Plain-English explainers on how blockchains, stablecoins and crypto infrastructure work. Sourced line by line, versioned, free as PDF.
01 Mechanics only. No prices.
02 Every claim sourced.
03 Versioned with a changelog.
Latest revision
The first card is the most recently updated dive
L1
How Ethereum upgrades happen: from proposal to hard fork
Changes to Ethereum start as written proposals called EIPs, move through review and client testing, and take effect for everyone at once in a scheduled hard fork.
DEX and perps
MEV explained: who profits from the order of Ethereum transactions
Whoever orders the transactions in an Ethereum block can capture extra value, which searchers find, builders package, validators mostly collect and some users now get back.
Staking
Staking, explained: running a validator alone or through a pool
A plain guide to how Ethereum staking works under its consensus rules, what a validator earns and risks, and how Lido and Rocket Pool let people stake without running 32 ETH alone.
L1
Ethereum
Ethereum is a public blockchain that runs smart contracts, which ethereum.org defines as programs that run on the Ethereum blockchain.
L2
Robinhood Chain
Robinhood Chain is an Ethereum layer-2 (L2) blockchain built by Robinhood Markets using Arbitrum technology.
Restaking
EigenLayer
EigenLayer is a set of smart contracts on Ethereum that lets people "restake" assets to secure other services.