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  1. Home
  2. /Glossary
  3. /Sei
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blockchain

Sei

A Layer 1 blockchain optimized specifically for trading applications.

Definition

A Layer 1 blockchain optimized specifically for trading applications. Sei features a built-in order matching engine, parallel order execution, and native frontrunning protection. It later added EVM support to attract Ethereum developers while keeping its trading-focused architecture.

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Related Terms

Layer 1

The base blockchain that processes and finalizes transactions.

Order Book

A list of all buy and sell orders for an asset, organized by price.

Parallel Execution

Processing multiple transactions simultaneously instead of one at a time.

ABI

Application Binary Interface.

Account Abstraction

A way to make crypto wallets behave more like normal apps by turning every account into a smart contract.

ERC-4337

The Ethereum standard for account abstraction without changing the core protocol.

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