DIDO Wiki

Return to Ethereum ERCs

Note: The following is an excerpt from the official Ethereum site. It is provided here as a convenience and is not authoritative. Refer to the original document as the authoritative reference.

: Creates a standard method to publish and detect what interfaces a smart contract implements.

Herein, we standardize the following:

1. How interfaces are identified

2. How a contract will publish the interfaces it implements

3. How to detect if a contract implements ERC-165

4. How to detect if a contract implements any given interface

For some “standard interfaces” like the ERC-20 token interface, it is sometimes useful to query whether a contract supports the interface and if yes, which version of the interface, in order to adapt the way in which the contract is to be interacted with. Specifically for ERC-20, a version identifier has already been proposed. This proposal standardizes the concept of interfaces and standardizes the identification (naming) of interfaces.