What Are NFTs?

NFTs — Non-Fungible Tokens — are unique digital assets on a blockchain. 'Fungible' means interchangeable (any dollar equals any other dollar). 'Non-fungible' means unique — each NFT has its own identity. They use token standards like ERC-721 (unique tokens) and ERC-1155 (supporting both unique and batch tokens). The NFT itself points to metadata stored on decentralized storage like IPFS or Arweave.

What makes NFTs revolutionary is provable ownership and provenance. The blockchain records every transfer — creating an immutable history. For the first time, you can truly 'own' a digital asset the same way you own a physical painting. You can prove it's yours, verify it's authentic, and transfer it without permission from a middleman.

The NFT landscape has evolved beyond speculative art. Practical applications include: event tickets that can't be counterfeited, domain names (ENS), music with automatic royalties, gaming items with real ownership, membership passes, credentials and certificates (like the ones you'll earn here!), and tokenized real-world assets.

It's worth being honest: owning an NFT doesn't always mean you own the copyright. Most NFT collections have lost value over time. But the underlying technology — verifiable digital ownership on blockchain — is powerful. Your concert ticket, car title, and professional certifications may all be NFTs within the next decade without you even thinking about the technology.