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ERC-8167 Modular Dispatch Proxies

Last CallERCcreated 2026-02-16

Proxy-level function dispatch via delegatecall

Authors: William Morriss (@wjmelements), Radek Svarz (@radeksvarz)

ERC-165 interface ids

Computed here as the XOR of the selectors each interface defines.

IERC81670x6351ac0f

Functions this standard introduces (2)

0x0d741577implementation(bytes4)view
0x6e25b978selectors()view

Events (1)

Topic0 is the keccak256 hash of the signature, which is what a log filter matches on.

0x7c86091fe23e473af4b780c37525ce8cfa74ec05a4a4e7d4d3e7f0551d86a7ceSelectorDelegated(bytes4,address)

Custom errors (1)

0x5416eb98FunctionNotFound(bytes4)

What the specification covers

Compare with

Parsed from the canonical specification · discussion