Generative NFTs: A Technical Guide to Creating Unique Digital Assets

Generative NFTs A Technical Guide to Creating Unique Digital Assets

The world of non-fungible tokens (NFTs) is constantly evolving, with new types of digital assets emerging all the time. One of the most exciting and innovative types of NFTs is the generative NFT. Generative NFTs are unique digital assets that are created using an algorithm or computer program, resulting in one-of-a-kind digital art pieces that are stored on the blockchain. In this blog post, we’ll take a closer look at generative NFTs, their use cases, and how to create them.

What are Generative NFTs?

Generative NFTs are a type of non-fungible token that are created using a computer program or algorithm. Unlike traditional NFTs, which typically depict a specific image or artwork, generative NFTs are created through a process of randomness and algorithmic generation, resulting in a unique and unpredictable digital asset.

Generative NFTs can take many forms, such as abstract shapes, patterns, or even entire virtual worlds. The process of creating a generative NFT often involves programming a set of rules or parameters that dictate how the asset will be generated, such as color palette, shape, and size. Each time the algorithm is run, a new, unique asset is created that is stored on the blockchain as an NFT.

Use Cases for Generative NFTs

Generative NFTs have become increasingly popular in the world of digital art and collectibles, with collectors and artists alike drawn to the uniqueness and unpredictability of the generated assets. Here are a few examples of how generative NFTs are being used:

  1. Digital Art – Many artists are using generative NFTs to create unique digital art pieces that can be sold as collectibles. The unpredictability of the generated assets makes them particularly interesting to collectors, who are willing to pay a premium for rare and unique pieces.
  2. Gaming – Generative NFTs can also be used in gaming applications, where they can be used to create unique items, characters, and virtual worlds. Players can collect and trade generative NFTs, creating a new form of in-game economy.
  3. Identity Verification – Generative NFTs can also be used for identity verification, providing a unique and secure way to authenticate users in online systems. The randomness of the generated assets makes them difficult to duplicate or fake, providing a higher level of security than traditional username and password systems.

How to Create a Generative NFT

Creating a generative NFT requires a deep understanding of programming, algorithms, and art. Here’s a basic guide to creating a generative NFT:

  1. Choose a programming language – The first step is to choose a programming language that you are comfortable with. Popular choices for generative NFTs include JavaScript, Python, and Solidity.
  2. Decide on the rules and parameters – Next, you’ll need to decide on the rules and parameters that will dictate how the asset will be generated. This includes things like color palette, shape, and size. You can use pre-built libraries and tools to help with this process, or create your own rules from scratch.
  3. Write the algorithm – Once you have decided on the rules and parameters, you’ll need to write the algorithm that will generate the digital asset. This will typically involve writing a series of functions that will create and modify the asset based on the rules and parameters that you have set.
  4. Store the NFT on the blockchain – Once you have generated the NFT, you’ll need to store it on the blockchain. This involves creating a smart contract that will define the NFT and its properties, including the rules and parameters used to generate it. You can use existing NFT marketplaces such as OpenSea or Rarible, or create your own custom marketplace to sell the NFT.
  5. Mint the NFT – To mint the NFT, you’ll need to connect to a blockchain network and execute the smart contract. This will create the NFT as a unique digital asset on the blockchain.
  6. Sell or distribute the NFT – Once the NFT has been minted, you can sell or distribute it as you would any other NFT. You can list it on NFT marketplaces or sell it privately to collectors.

Here’s an example code snippet in Solidity, a programming language used to write smart contracts for Ethereum blockchain, for creating a simple generative NFT:

pragma solidity ^0.8.0; import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; contract GenerativeNFT is ERC721 { uint256 public tokenCount = 0; constructor() ERC721("GenerativeNFT", "GNFT") {} function mintNFT(string memory tokenURI) public returns (uint256) { tokenCount++; _mint(msg.sender, tokenCount); _setTokenURI(tokenCount, tokenURI); return tokenCount; } }

In this example, we are using the OpenZeppelin library, which provides pre-built Solidity contracts for building ERC721 tokens (NFTs).

The Generative NFT contract inherits from the ERC721 contract and defines a simple minting function called mintNFT that takes a tokenURI parameter (which is typically a URL that points to metadata describing the NFT) and returns the ID of the newly created NFT.

When mintNFT is called, it increments the tokenCount variable, mints a new NFT using the _mint function from the ERC721 contract, sets the token URI using the _setTokenURI function, and returns the token ID.

Of course, this is a very simple example and doesn’t include any generative algorithms or parameters, but it shows how a basic NFT contract can be written in Solidity. To create a generative NFT, you would need to modify the mintNFT function to generate the NFT using a specific algorithm or set of rules, rather than simply minting a new token with a static metadata URL.

To continue, let’s consider an example of creating a generative NFT with a random color scheme. Here’s a sample code snippet in Solidity that generates a random color and sets it as the background color of the NFT:

pragma solidity ^0.8.0; import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; contract GenerativeNFT is ERC721 { uint256 public tokenCount = 0; mapping (uint256 => string) public colorMap; constructor() ERC721("GenerativeNFT", "GNFT") {} function mintNFT() public returns (uint256) { tokenCount++; _mint(msg.sender, tokenCount); bytes32 hash = keccak256(abi.encodePacked(tokenCount, block.timestamp, block.difficulty)); uint r = uint(hash) % 256; uint g = uint(hash >> 8) % 256; uint b = uint(hash >> 16) % 256; string memory color = string(abi.encodePacked("rgb(", uintToString(r), ",", uintToString(g), ",", uintToString(b), ")")); colorMap[tokenCount] = color; return tokenCount; } function uintToString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits--; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } }

In this example, the mintNFT function generates a random color scheme by hashing together the token ID, block timestamp, and block difficulty to produce a random seed value. It then uses this seed value to generate three random numbers between 0 and 255, which are used to construct an RGB color value string.

The uintToString function is a helper function that converts a uint256 value to a string representation.

Finally, the colorMap mapping is used to store the color value of each NFT by its token ID. This information can be used by the NFT viewer or marketplace to display the NFT with its unique color scheme.

This is just one example of how a generative NFT can be created using Solidity. The possibilities for generative NFTs are virtually limitless, and can range from simple color schemes to complex 3D models, animations, or even music. The key is to define a set of rules or parameters that can be used to generate unique and unpredictable NFTs, and to use the power of blockchain technology to ensure their authenticity and ownership.


Generative NFTs are a fascinating and innovative new type of digital asset that is changing the world of art and collectibles. By using algorithms and programming to generate unique and unpredictable digital assets, generative NFTs are creating new opportunities for artists, collectors, and developers alike. While creating a generative NFT can be a complex and challenging process, it is also a rewarding and exciting way to push the boundaries of digital art and blockchain technology.

Rapid Innovation invites you to leverage the power of Generative NFTs and position yourself as a leader in innovation. Consult with our team of Generative NFTs experts at Rapid Innovation and explore the endless possibilities for your business today. Don’t miss out on the opportunity to push the boundaries of digital art and blockchain technology with generative NFTs. Contact us now and let’s create something extraordinary together!

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