<p>In the realm of digital collectibles, Non-Fungible Tokens (NFT) made a remarkable wave. Imagine if your NFT could do more than just resting on your digital wallets.</p><p>EIP-6672 introduces an extension to ERC-721 standard, with an added feature of the creation of Multi-Redeemable NFTs. Learn how these tokens enable redemption in multiple scenarios, expanding the utility of NFTs.</p><h3>&nbsp;</h3><h2><strong>What are Multi-Redeemable NFTs?</strong></h2><ul><li>Multi-Redeemable NFTs allow for redemption in multiple scenarios, providing versatility in the benefits or items associated with the token.</li><li>NFT holders can demonstrate their ownership and redeem their tokens where the redemption status is recorded and maintained on the blockchain.</li><li>The redemption functionality of NFTs expands their utility in different industries and use cases including Digital Event Tickets and Gaming items.</li></ul><h3>&nbsp;</h3><h3>&nbsp;</h3><h2><strong>NFTs Vs Multi-Redeemable NFTs</strong></h2><p>Traditional NFTs are commonly used for representing unique digital assets. Once an NFT is minted, it is owned by a single entity and cannot be redeemed for several times.</p><p>Multi-Redeemable NFTs allows to be utilized multiple times in various scenarios enabling token holder to access different benefits, experiences or to receive items associated with the NFT.</p><p>For Example, Binding NFTs to ticket redemption can enrich the event experience, where it can be redeemed for access to the event, exclusive merchandise or to avail of any benefits related to that event.</p><h3>&nbsp;</h3><h2><strong>Multi-Redeemable Event Tickets with ERC-6672</strong></h2><p>In the digital era of digital experiences, Multi-redeemable tickets bring a new level of versatility. Traditional tickets are transformed into digital assets, which ticket holders can redeem multiple times to avail exclusive benefits.</p><p>&nbsp;</p><p><strong>How Does it Work?</strong></p><ul><li>Ticket Purchase: Mint ERC-6672 compliant NFTs as event tickets.</li><li>Initial Redemption: Getting access to the event and after participation NFTs redemption status is updated by the operator.</li><li>Claim more exclusive benefits: The same NFT can be used for purchases related to the event or access exclusive benefits.</li></ul><h3>&nbsp;</h3><h2><strong>Core Functionalities</strong></h2><p><strong>Redemption Functions:</strong> Two functions for managing redemptions are ‘redeem() and cancel()’, allow NFT holders and operators to ineteract with the redemption process. The redemption flag key-value pairs, based on the combination of _operator, _tokenId, and _redemptionId, play a crucial role in tracking the status of each redemption.</p><p><strong>Metadata Extension:</strong> Functionality to enhance the information associated with each NFT. It is useful in cases for providing additional details about the redemption.</p><p><strong>Backward Compatibility</strong>: ERC-6672 is compatible with existing Non-Fungible token standards ensuring smart contracts and wallets that interact with ERC-721 can also easily integrate multi-redeemable features securely.</p><p><strong>Security</strong>: The operator who created redemption can only update redemption flags using redeem and cancel functions, this ensures security since the operator is identified using the msg.sender’.</p><p>&nbsp;</p><p>Here is a sample implementation contract on this use-case:</p><figure class="image image_resized" style="width:50%;"><img src="https://strapi.buildbear.io/uploads/carbon_1_653712c019.png" alt="carbon (1).png" srcset="https://strapi.buildbear.io/uploads/thumbnail_carbon_1_653712c019.png 245w,https://strapi.buildbear.io/uploads/small_carbon_1_653712c019.png 500w,https://strapi.buildbear.io/uploads/medium_carbon_1_653712c019.png 750w,https://strapi.buildbear.io/uploads/large_carbon_1_653712c019.png 1000w," sizes="100vw"></figure><p>&nbsp;</p><figure class="image image_resized" style="width:50%;"><img src="https://strapi.buildbear.io/uploads/carbon_2_6c56212c23.png" alt="carbon (2).png" srcset="https://strapi.buildbear.io/uploads/thumbnail_carbon_2_6c56212c23.png 84w,https://strapi.buildbear.io/uploads/small_carbon_2_6c56212c23.png 268w,https://strapi.buildbear.io/uploads/medium_carbon_2_6c56212c23.png 403w,https://strapi.buildbear.io/uploads/large_carbon_2_6c56212c23.png 537w," sizes="100vw"></figure><h2>&nbsp;</h2><h2>Challenges and Risks</h2><ul><li><strong>Development</strong> <strong>complexities</strong>: Multi-redeemable NFT implementation requires additional complexities compared to traditional NFTs. Developers need to test and audit smart contract thoroughly the redemption scenarios.</li></ul><p>&nbsp;</p><ul><li><strong>Vulnerabilities</strong>: Unauthorized access to redemption may lead to security concerns. Implement strict access controls, ensuring only authorized operators can update redemption flags.</li></ul><h2><strong>Conclusion</strong></h2><p>Multi-Redeemable NFTs aim to revolutionize the NFT landscape, allowing for varied and multiple redemption, expanding the potential use cases and possibilities for commerce and user engagement in the decentralized digital realm. As NFT space continues to evolve, implementation of ERC-6672 enhances the utility of digital assets.</p><h2><strong>About</strong> <a href="http://buildbear.io/"><strong>BuildBear</strong></a>:</h2><p>BuildBear is a platform for testing dApps at scale, for teams. It provides users with their own private Testnet to test their smart contracts and dApps, which can be forked from any EVM chain. It also provides a Faucet, Explorer, and RPC for testing purposes.</p><p>&nbsp;</p><p><i><strong>BuidBear aims to build an ecosystem of tools for testing dApps at scale for the teams.</strong></i></p><p>&nbsp;</p><p><strong>&nbsp;Connect with us on</strong> <a href="https://twitter.com/_BuildBear">Twitter</a>|<a href="https://www.linkedin.com/company/build-bear/">|LinkedIn</a>||<a href="https://t.me/Web3_dApp_Developers">Telegram</a><a href="https://github.com/BuildBearLabs">||GitHub</a><br>Author: <a href="https://twitter.com/chandan1_">chandan</a> and Sana</p>

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EIP-6672 introduces an extension to ERC-721 standard, with an added feature of the creation of Multi-Redeemable NFTs. Learn how these tokens enable redemption in multiple scenarios, expanding the utility of NFTs.

A Comprehensive Guide to ERC-6672: Multi-Redeemable NFTs

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