ERC1363 would make tokens capable of doing steps much more quickly and working with no usage of any off-chain listener. It enables to produce a callback over a receiver/spender agreement, following a transfer or an acceptance, in only one transaction. ERC1363 is surely an extension interface for ERC20 tokens that https://arthuriiihf.bloggactivo.com/28850970/5-simple-techniques-for-random-eth-address