This proposal defines a minimal extension to ERC-20 (affectionately called minimal XERC20) that enables bridging tokens across domains without creating multiple infungible representations of the same underlying asset. It exposes new interfaces that allow fungible token issuers to apply custom risk profiles at a per bridge per domain granularity.
The related ERC-7281 (XERC20) proposal encompasses Lockbox wrappers, structs, and extensive configuration functions, exceeding the minimal requirements for core interoperability.
This (minimal) ERC presents a streamlined, focused approach, providing the essential functionality for ‘xERC20 native’ fungible token interoperability.
Minimal xERC20 PR: Create erc (minimal xERC20) by radeksvarz · Pull Request #961 · ethereum/ERCs · GitHub
Original xERC20 PR: https://github.com/ethereum/ERCs/pull/89
Original xERC20 EM: ERC-7281: Sovereign Bridged Tokens
xERC20 info web: https://www.xerc20.com/
The goal of ERC-7905 is to have the common core of xERC20 standard finalised.