Ethereum Improvement Proposal. The design-doc process for Ethereum core, networking, and standards (ERCs).

Ethereum's fee market: a burned base fee plus a tip. It made fees more predictable and added a burn.

Proto-danksharding. Added blob space so rollups can post data far cheaper than calldata.

Typed structured data signing, the standard behind readable wallet prompts for permits and orders.

An Ethereum transaction mechanism that lets an externally owned account authorize persistent delegation to executable code, introduced through Pectra in 2025.

A multi-token standard that can hold fungible and non-fungible ids in one contract.

An Ethereum interface allowing a smart contract account to report whether it considers a given message signature valid.