The base blockchain that processes and finalizes transactions. Bitcoin, Ethereum, and Solana are Layer 1s. Each L1 makes different tradeoffs between decentralization, security, and speed.
A secondary network built on top of a Layer 1 to improve scalability.
A distributed database where transactions are grouped into blocks and linked together cryptographically.
A blockchain's ability to handle increasing transaction volume without degrading performance or raising fees.
Application Binary Interface.
A way to make crypto wallets behave more like normal apps by turning every account into a smart contract.
The Ethereum standard for account abstraction without changing the core protocol.
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