--- title: "NFT (Non-Fungible Token)" url: "https://www.unknowngravity.com/en/glosario/nft-token-no-fungible" site: Unknown Gravity published: "2025-06-07T15:04:59+00:00" modified: "2026-07-30T15:43:02+00:00" language: en-US description: "An NFT (Non-Fungible Token) is a type of unique and unrepeatable digital asset which is issued on a blockchain through smart contracts." section: "Home > NFT (Non-Fungible Token)" --- # NFT (Non-Fungible Token) GLOSSARY · BLOCKCHAIN & WEB3 A unique digital token that represents ownership of a specific asset, such as digital art, music, or collectibles. WHAT IS IT? · FOR DUMMIES An **NFT** is like a **unique digital token** that says that you are the owner of something special: an image, a song, a video game character or even virtual terrain. Unlike digital currencies (which are all worth the same), NFTs **are all different from one another**, and that is why they can represent **unique things**. WHAT IS IT? · PRO An **NFT (Non-Fungible Token)** is a type of **unique and unrepeatable digital asset** which is issued on a blockchain through **smart contracts**. Unlike the **fungible tokens** (such as ERC-20), which are interchangeable and homogeneous, each NFT has a **unique identifier (`TokenID`) and specific metadata** that differentiate it from the rest, allowing **represent the ownership and authenticity of digital or physical assets**. NFTs are built on **non-fungible tokenization standards**, the most common are: - **ERC-721**: base standard for individual and indivisible NFTs. - **ERC-1155**: allows you to manage both fungible and non-fungible tokens in a single contract (ideal for video games and multiple collections). Each NFT targets a series of **metadata** (usually in JSON format), which contain information such as: - Name and description of the asset. - Link to the image, video or file (stored on IPFS, Arweave or centralized server). - Unique attributes (color, rarity, level, etc.). - History of ownership and transfers. NFTs are used in numerous use cases: - **Digital art and collectibles** (e.g. images, illustrations, photography, music). - **Gaming and metaverses** (skins, characters, virtual lands). - **Documentation and digital identity** (certificates, tickets, diplomas). - **Fractional ownership of real assets** (buildings, physical objects). - **Intellectual Property Tokenization and User Licenses**. One of the key characteristics of the NFT is that its existence on the blockchain guarantees: - **Verifiable shortage**. - **Demonstrable authenticity**. - **Transferable property without intermediaries**. - **Interoperability between standards-compatible platforms and markets**. However, it is important to note that the NFT **It does not store the content**, but a pointer to it. Therefore, its legal and functional value may depend on how the contract is structured, the hosting of the metadata and the related rights. ## 01 / Key points - It represents something **unique and not interchangeable** about blockchain - Use standards such as **ERC-721 and ERC-1155** - includes **metadata** that define the asset and its properties - It allows you to certify ownership and digital authenticity without intermediaries - It is applied in art, video games, metaverses, identity and more ## 02 / Advantages - **Certification of authorship and scarcity** digital in verifiable environments - **Ownership without intermediaries**, transferable 24/7 in global markets - **Direct Monetization for Creators** with programmable royalties - **Wide applicability**, from art to digital identity and gaming - **Interoperability with compatible wallets, marketplaces and networks** ## 03 / Disadvantages - **High Speculation and Market Bubbles** in some sectors - **Legal risks regarding intellectual property and rights of use** - **Metadata hosting dependency** If it's not well decentralized - **Sustainability and energy use issues in PoW blockchains** - **Learning curve for new users or collectors** RELATED CONCEPTS [Token](/en/glosario/token) [ERC-721](/en/glosario/erc-721) [ERC-1155](/en/glosario/erc-1155) [Minting](/en/glosario/minting) [NFT metadata](/en/glosario/metadatos-nft) KEEP LEARNING [What is an NFT?](/en/articulos/que-es-un-nft) [Benefits of creating your own NFT Marketplace](/en/articulos/beneficios-de-crear-tu-propio-marketplace-nft) [Blockchain use cases in the arts and entertainment industry](/en/articulos/casos-de-uso-blockchain-industria-arte-entretenimiento) [Commodity tokenization: gold, silver, wine, energy and more](/en/articulos/tokenizacion-de-materias-primas-oro-vino-energia-y-otros-activos-fisicos-en-blockchain) [Success stories in tokenization: companies that revolutionized their markets](/en/articulos/casos-de-exito-en-tokenizacion-empresas-que-revolucionaron-sus-mercados) RELATED SERVICES [Create NFT collections](/en/servicios/colecciones-nft) [Marketplace Development for NFT](/en/servicios/desarrollo-marketplaces-nft) [NFT Consulting](/en/servicios/consultoria-nft) [Tokenomics](/en/servicios/tokenomics) [Token issuance](/en/servicios/emision-de-tokens) [Full glossary](/en/glosario) This entry is informative. It is not legal, tax or investment advice. The rules cited change: check the current version on [BOE](https://www.boe.es) and [EUR-Lex](https://eur-lex.europa.eu).