How NFTs Work and What to Watch Out For: 2026 Edition, Key Basics to Check Before Buying

NFTs (Non-Fungible Tokens) are mechanisms that prove ownership and uniqueness of digital data on a blockchain. As of 2026, NFTs have evolved from their speculative image as digital art into practical applications such as proving digital ownership and managing real-world assets (RWAs). However, there are many important considerations to understand before purchasing, including price volatility, hacking risks, and differences in standards. This article provides a neutral explanation covering the basic mechanics of NFTs, storage methods, secondary market flows, and key points to verify before making a purchase.

Basic NFT Standards: ERC-721 and ERC-1155

Most NFTs utilize standards built on the Ethereum blockchain. The two most prominent standards are "ERC-721" and "ERC-1155."

ERC-721 is a standard that guarantees each token is completely unique (non-fungible). It is ideally suited for proving ownership of one-of-a-kind items, such as digital art or collectibles. In contrast, ERC-1155 is a semi-fungible standard that allows for the issuance of multiple identical tokens. This makes it well-suited for managing items with identical specifications, such as in-game assets or tickets.

It is worth noting that blockchains and standards exist beyond Ethereum, and compatible marketplaces or supported wallets may vary depending on the network. Before making a purchase, it is crucial to verify which chain and standard the NFT was issued on.

How to Store NFTs: Wallet Types and Management Responsibilities

To store NFTs, you need a wallet compatible with cryptocurrencies. There are two main types of wallets: "hot wallets," which are used while connected to the internet, and "cold wallets," which are managed offline.

While hot wallets offer high convenience, they carry risks such as hacking and phishing scams. Cold wallets provide superior security but require a certain level of technical knowledge to operate. It is also crucial to note that if you lose your wallet's private key (seed phrase), you will permanently lose access to your NFTs.

Although NFT ownership is recorded on the blockchain, managing them is your own responsibility. While some exchanges and marketplaces offer wallet management services, assets deposited with them are not necessarily protected. When choosing a storage method, consider the balance between security and convenience.

How Secondary Market Trading Works and Fees

NFTs can be resold on secondary markets through various marketplaces. Once a transaction is completed, ownership is transferred on the blockchain, and this record remains permanently stored.

Each marketplace sets its own fees for secondary trading. Fee rates vary depending on the platform and specific transaction conditions, so please check the official website for the most up-to-date information before trading. Additionally, some NFTs include "royalties," which ensure that a portion of the resale price is automatically paid to the original creator upon each secondary sale.

Please note that NFT prices fluctuate based on supply and demand. For tokens with low liquidity, selling may take considerable time. There is also a risk of losing your principal investment, as you may only be able to sell at a price lower than your purchase cost. Therefore, purchasing NFTs with the expectation of price appreciation requires careful judgment.

Key Points to Check Before Buying

Before purchasing an NFT, be sure to verify the following points.

• Issuer and Project Credibility: Check the official website and whitepaper (business description) to verify that the organization is legitimate. Be cautious of anonymous issuers or exaggerated marketing claims.
• Metadata Storage Location: Verify whether data such as images or videos associated with the NFT are stored directly on the blockchain or rely on external servers. If an external server goes offline, you may lose access to the data.
• Tradability and Tax Regulations: Rules regarding NFT trading and tax treatment vary by country and region. Please check the laws and tax regulations of your country of residence in advance.
• Community Reputation: Monitor the project's operational status and community sentiment through official channels like Discord and X (formerly Twitter).

Additionally, purchasing an NFT may require opening an account with a crypto exchange. For guidance on choosing an exchange, please refer to our Crypto Exchange Comparison.

Summary

As of 2026, NFTs continue to evolve as a technology for proving ownership of digital assets. However, complexities remain regarding standards, storage methods, and secondary market mechanisms, which entail certain risks. When considering a purchase, it is crucial to understand the underlying technical framework, verify the issuer's credibility and data storage location, and make decisions based on your own judgment.

NFT prices are highly volatile, and there is no guarantee of principal protection. Additionally, there are risks associated with hacking and fraud. We recommend conducting thorough research before purchasing and trading only within the limits of your disposable income.

Risks and Disclosures

Risk: Cryptocurrencies are highly volatile, and there is a risk of losing your principal. This article provides general information based on data as of 2026-09-07; it does not constitute investment solicitation, advice, or a recommendation for any specific asset. Trading eligibility and tax regulations vary by country/region, so please verify the regulations in your country of residence and the latest terms of each exchange before trading.

Affiliate Disclosure: This article may contain advertising (affiliate) links, through which our site may earn compensation at no additional cost to you. Such compensation does not influence our ratings or evaluations.

Frequently Asked Questions

What is an NFT?

An NFT (non-fungible token) is a token on a blockchain that proves ownership and uniqueness of a digital asset. It's used to manage the value of one-of-a-kind items like digital art or in-game items. As of 2026, NFTs are also increasingly used for practical purposes such as managing real-world assets (RWAs).

What do I need to store an NFT?

To store an NFT, you need a wallet that supports the relevant blockchain. Wallets come in two main types: hot wallets and cold wallets, each with different trade-offs between convenience and security. If you lose your private key, you lose access to your NFT, so you are fully responsible for managing it.

What should I check before buying an NFT?

Check the credibility of the issuer, where the data is stored, whether trading is allowed and how it's taxed, and the reputation of the community. In particular, if the NFT's data depends on an external server, there's a risk you could lose access if that server goes down. Also, be aware of price volatility and the risk of losing your principal.

Are there fees for reselling an NFT?

Yes, when you resell an NFT on the secondary market, each marketplace charges its own fees. Fee rates vary by platform and transaction terms, so always check the latest details on the official site beforehand. Some NFTs also include a royalty that goes back to the creator.

Is the price of an NFT guaranteed?

No, NFT prices fluctuate based on supply and demand, and there is no guarantee of your principal. Low-liquidity items may take time to sell, and you might only be able to sell at a price below what you paid. If you're buying for investment purposes, make sure you fully understand the risks and decide at your own responsibility.