There have been several instances of NFT hacks and exploits in the past, and it is important for users of NFTs to be aware of these risks and take steps to protect their assets. …

As NFT area is growing every day, more new mechanics and experiments are coming to the world of priceless pixels. One of the popular approaches during NFT launches is a Reveal toggle functionality. Reveal functionality stands for hiding NFT picture with some placeholder image initially. In this article we will…

Non-Fungible Tokens (NFTs) are made on blockchains, which means they are on-chain, right? Not so fast: it turns out it is a lot more complicated than that. Even if they are smart contracts, most NFTs rely on things outside of the blockchain. …

People are looking left and right for what will be the next NFT meta! In the land of doom that has become the NFT space, people are hoping that a new meta will break the crypto winter curse and bring back the fun (and the money) NFTs used to be…

NFTs are not only just a cryptographical guarantee of ownership of an image (ok, it’s not an image, I know, but many people think so). With the same technology behind them, things change depending on how we work, interact and play with them. I’m talking about utility NFT, enabling certain…

There are many options available to choose for storing NFTs’ metadata. But we can categorize all of those options into on-chain and off-chain categories. In this article, we first walk through these two options’ differences and then analyze the gas usage of minting one and multiple NFTs using each type. On-chain Data …

With the growing popularity of Sudoswap, and the rise of similar NFT AMMs on Solana, it’s important to look beyond the hype and understand what concentrated liquidity actually means for NFTs and traders. Concentrated liquidity — Basics I will keep it short, but if you’re interested in fully understanding how Automated Market Makers (AMMs)…

Trying to understand why and when a Non-tradable token is useful. — Introduction Especially in the last year, interest in NFTs has grown dramatically. The reasons for this interest are many, but this is not the aspect that I want to deepen in this article. The point is that more and more people have become familiar with the concept of NFT. It can…

This guide will help you to understand the various NFT ranking methods. Later, we will explain how to use the famous NFT ranking tool — rarity.tools. Rarity.tools in an innovative platform where you can check the ranking of famous NFT collectibles. Currently, only a few NFT projects are listed there, including some famous NFT collections like Bored Ape Yacht Club, CryptoPunks, etc. The project listing is growing rapidly. Creators can list their collectibles by submitting the form given on the website and contacting the project team. They need to pay 2 ETH for Ethereum or Polygon collectibles, or 20 SOL for listing Solana collectibles.

Rentable NFTs Are Made Possible By A New Ethereum Token Standard ERC-4907 — Today, we will learn about the ERC-4907, the new NFT Rental Standard which passed the final review by the Ethereum development team on June 28, 2022, and became the 30th ERC standard. Now, Rentable NFTs are made possible by the new Ethereum token Standard ERC-4907. ERC-4907, allows an NFT owner…

This technical article will explore the concept of NFT whitelisting and how to implement this for an Ethereum-based NFT collection. — First, let’s define what NFT whitelisting is: it’s the process of getting a crypto wallet address pre-approved for minting. It’s a common approach to prevent so called “gas wars”, where people raise the price of gas that they’re willing to pay to mint an NFT so that their transactions are…

Foreword Trying to understand the architecture of an NFT project, especially if you aren’t very familiar with the technologies involved, can prove to be a daunting task. If you’ve somehow stumbled across this article, one would assume that you have somewhat of an interest in trying to understand this incredibly niche…

Rentable NFTs and how to implement them. NFTs are coming in all shapes and sizes, and there are countless extensions to create the exact functionality you need. …

In this article, we’ll break down the MerkleTree proof implementation for your NFT collection’s airdrop/whitelist. (+testing). Using Polygon Mumbai. If you don’t understand how this algorithm works, I advise you to read the previous article before starting to work (I have explained the Merkle algorithm in detail here). I also advise…

1. Introduction Digital signature is used to ensure the authenticity and integrity. As described in this article, “A valid digital signature, where the prerequisites are satisfied, gives a recipient very high confidence that the message was created by a known sender (authenticity), and that the message was not altered in transit (integrity).” …

Nefturians has implemented ERC721A+, a feature in the smartcontract that allows you to mint multiple NFTs while paying the gas fees only once. Inspired by the innovation of Azuki, we made a few simple improvements and we called it ERC721A+. …

Ever wanted to create an NFT that reacts to real-world events and data? Now you can, with Chain Link Oracles. Let’s check out how this can be done! — Remark: unfortunately Chain Link Oracle is only set up on the Kovan testnet, while the OpenSea testnet is on Rinkeby. So developing and testing everything was done on over two networks, which was not ideal. What’s a Chain Link Oracle? The first generation of NFTs, like BAYC, CryptoPunks,… are in essence static. Their image and…

“ What is this garbage number …. Wait, is that really a garbage number ? “ Introduction Have you ever tried creating NFTs in Opensea without a contract of your own and wondered what does the huge number in the Token ID actually mean …? If Yes , Hello and Welcome to…

Solidity Smart Contract Implementation and testing using Brownie Introduction Welcome Back to the Part II of the series !!! In the Part I of the Rentable NFTs, we have already discussed about : NFT Rentals and Traditional Rental Systems Dual-Role NFT Rental Standard IERC 4907 Now that we have…

Imagine that I’m a happy owner of an NFT. Done? Ok! Now, I can prove to anyone that I am the holder of a unique cryptographical asset and, the blockchain guarantees for me. But what can I do now with this superpower? NFTs are tied to metadata; among them, there…