# What are NFTs (digital items)?

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## 🎨 What Is a Non-Fungible Token (NFT)?

A **Non-Fungible Token (NFT)** is a **unique digital token** that exists on a blockchain like Ethereum. Unlike cryptocurrencies such as Bitcoin or Ether — which are *fungible* and identical to one another — each NFT is **one-of-a-kind** and contains **unique identifying information**.

This makes NFTs ideal for digital items that require **individual ownership, authenticity, and scarcity**.

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### 🔁 Fungible vs. Non-Fungible: What's the Difference?

* **Fungible tokens** (like 1 ETH or 1 USD) are interchangeable — it doesn’t matter which one you have; they’re equal in value.
* **Non-fungible tokens** are **not interchangeable** — each has distinct value, purpose, and metadata.

#### 💡 Real-World Analogy:

* Two $1 bills can be swapped with no difference in value — this is fungibility.
* But you can’t trade a **baseball card** for someone’s **birth certificate** and call it even — both are unique. That’s non-fungibility.

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### 🧩 Why Are NFTs Important?

NFTs enable **verifiable digital scarcity** — meaning a digital file can now be:

* **Owned** by a specific wallet
* **Proven authentic** via blockchain history
* **Traded or sold** just like physical goods

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### 🎮 Popular Use Cases of NFTs

#### 1. **Gaming & Collectibles**

* NFTs can represent **in-game assets** that belong to the player, not the game studio.
* These assets can be transferred, traded, or even used across different games.

#### 2. **Digital Art**

* Artists use NFTs to sell original digital works with **proof of ownership**.
* NFTs prevent unauthorized duplication and help creators monetize their work directly.

#### 3. **Virtual Real Estate & Metaverse Items**

* Platforms like **Decentraland** allow users to own land, wearables, and avatars — all as NFTs.

#### 4. **Real-World Applications (Future Potential)**

* Imagine proving ownership of a luxury bag by scanning its NFT.
* Or replacing barcodes with NFTs that verify origin, authenticity, and ownership history.

> 🌐 The future of NFTs goes far beyond collectibles — from **supply chains** to **identity verification**, the possibilities are vast.

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### 🛠️ Is an NFT the Same as an ERC-721?

Yes — on Ethereum, NFTs typically follow the **ERC-721 standard**, which defines how non-fungible tokens should behave.

* ERC-721 is the **most widely adopted NFT standard**
* Projects like **CryptoKitties**, **Decentraland**, and **Mintable** use it
* Mintable mints all NFTs as **ERC-721 tokens** on the Ethereum blockchain

> 🧠 ERC-721 ensures your NFT is compatible with wallets, marketplaces, and explorers across Ethereum.

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### 🚀 The Rise of NFTs

NFTs first gained global attention with **CryptoKitties** in 2017 — a blockchain-based game where users collected and bred digital cats. The project raised over $12.5 million and temporarily clogged the Ethereum network due to demand.

Since then, NFTs have become central to the growth of:

* Digital art markets
* Metaverse economies
* Creator monetization tools
* Next-gen Web3 experiences

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### 🌍 Are NFTs Just a Fad?

Far from it.

NFTs are poised to become the **next wave of blockchain adoption**, with applications limited only by the creativity of developers, artists, and businesses.

From collectibles to contracts, luxury goods to digital identities — NFTs have the potential to change the way we interact with **ownership, verification, and value** on the internet.

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Read more about NFTs in our [editorial NFT Basics series](https://editorial.mintable.app/category/guides/nft-basics/).
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