This new type of tokens is used to generate unique products in our smart contract. The ERC-721 standard has been approved by the official Ethereum team, meaning you'll be able to use it as it is for all sorts of applications, knowing that it will be compatible with tools and smart contracts that depend on this standard. Just as ERC-20 tokens gave birth to decentralized token exchanges, we can expect the creation of decentralized ERC-721 exchanges and marketplaces of digital as well as physical products.
Understanding ERC-721 tokens
Explaining the ERC-721 functions
To understand how ERC-721 tokens work, it's best to look at the functions that define an ERC-721 token so that you can understand how they work internally...