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EIPS/eip-7160.md

@@ -1,7 +1,7 @@
 ---
 eip: 7160
 title: ERC-721 Multi-Metadata Extension
-description: "This EIP proposes an extension to the ERC-721 to support multiple metadata URIs per token."
+description: "Multiple metadata URIs per token, with the option to pin a primary URI."
 author: 0xG (@0xGh), Marco Peyfuss (@mpeyfuss)
 discussions-to: https://ethereum-magicians.org/t/erc721-multi-metadata-extension/14629
 status: Draft
@@ -19,12 +19,14 @@ This EIP proposes an extension to the [ERC-721](./eip-721.md) standard to suppor
 
 The current [ERC-721](./eip-721.md) standard allows for a single metadata URI per token. However, there are use cases where multiple metadata URIs are desirable, such as when a token represents a collection of (cycling) assets with individual metadata, historic token metadata, collaborative and multi-artist tokens, evolving tokens. This extension enables such use cases by introducing the concept of multi-metadata support.
 
+The primary reason for having a multi-metadata standard versus existing `tokenURI` with some token-specific functions to change the active URI is that dapps and marketplaces don't have a mechanism to infer and display all the URIs in a carousel, gallery, list, etc. The non-pinned URIs might be equally important: imagine a colaborative token with multiple artworks per token.
+
 ## Specification
 
-The `IERC721MultiMetadata` interface extends the existing `IERC721` interface and introduces additional methods and events:
+The `IERC721MultiMetadata` interface:
 
 ```solidity
-interface IERC721MultiMetadata is IERC721 {
+interface IERC721MultiMetadata /* is IERC721 */ {
   event TokenUriPinned(uint256 indexed tokenId, uint256 indexed index, address indexed sender);
   event TokenUriUnpinned(uint256 indexed tokenId, address indexed sender);
 
@@ -68,13 +70,13 @@ This extension is designed to be backward compatible with existing [ERC-721](./e
 An open-source reference implementation of the `IERC721MultiMetadata` interface can be provided, demonstrating how to extend an existing [ERC-721](./eip-721.md) contract to support multi-metadata functionality. This reference implementation can serve as a guide for developers looking to implement the extension in their own contracts.
 
 ```solidity
-// SPDX-License-Identifier: MIT
+// SPDX-License-Identifier: CC0-1.0
 
 pragma solidity ^0.8.19;
 
-import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
-import "@openzeppelin/contracts/access/Ownable.sol";
-import "@openzeppelin/contracts/interfaces/IERC4906.sol";
+import "./token/ERC721/ERC721.sol";
+import "./access/Ownable.sol";
+import "./interfaces/IERC4906.sol";
 import "./IERC721MultiMetadata.sol";
 
 contract MultiMetadata is Ownable, ERC721, IERC721MultiMetadata, IERC4906 {
@@ -160,4 +162,4 @@ This extension does not poses new security risks outside of those that might ari
 
 ## Copyright
 
-This work is licensed under the MIT License.
+Copyright and related rights waived via [CC0](../LICENSE.md).