ERC: Priority Update Registry (PUR) — DeFi Intel

Gm, Here is a draft contract standard for PropAMMs on the EVM (and similar use cases). An instance of this contract is live on Ethereum since May ‘26 and handles almost all of the propAMM volume across multiple builders. We’re hoping to standardise this across EVM chains. PR Link ; reference implementation The short version: the Priority Update Registry (PUR) is a single shared contract that holds small pieces of state “owned” by other contracts. An owner authorises some off-chain updaters to write that state, and only the owning contract reads it back during other tx calls. The state is meant