A non-fungible token — an NFT — is a single, indivisible record on a blockchain that points at something. That's the entire idea. The "something" can be a JPEG, a song, a deed, a ticket, a membership card, a game item, a position in a queue. The NFT is the pointer. It is not the thing.
This sentence is the source of more confusion (and more lost money) in retail crypto than almost any other.
What the NFT is
It is a record in a blockchain's NFT table. On the XRP Ledger, that table is the XLS-20 NFToken store. The record contains:
- A unique 64-character identifier (NFTokenID).
- The owner's account (the XRPL address that controls it).
- An issuer (who minted it).
- A taxon (a 32-bit grouping number — basically a "collection id").
- A URI (a hex-encoded string that, decoded, is usually a link to off-chain content).
- Flags (burnable, transferable, only-XRP, etc.).
- A transfer fee (the royalty percentage paid back to the issuer on each future sale).
That's it. Maybe 200 bytes of data on chain. Owning the NFT means owning that row on the ledger.
What the NFT isn't
It usually isn't the image you see on the marketplace. The image — and the JSON metadata that describes the image, its traits, its name — usually lives somewhere else: IPFS, Arweave, an HTTP server, sometimes a centralised CDN. The NFT's on-chain URI field just points at that off-chain location.
This means:
If the off-chain content dies, the NFT still exists on chain — but it's pointing at nothing. Some early NFT collections have already half-died this way: the original IPFS pins lapsed, the image servers shut down. The token is still in your wallet. The image is gone.
The NFT is the right of ownership of the record. It is not the right of ownership of the depicted asset. Owning an NFT of the Mona Lisa doesn't give you any rights to the Mona Lisa. Owning an NFT of a song doesn't give you the song's copyright (unless the issuer explicitly transferred it via separate legal documents).
You can have multiple NFTs pointing at the same image. Two completely different tokens, two different issuers, both URIs resolve to the same JPEG. Neither is "the real one." Both are equally valid on-chain records; their value depends on context, provenance, and what people decide to pay for them.
Why people still pay for them
Despite all the above, NFTs do have real value in specific cases:
- Genuine scarcity in an issuer-controlled context. A game where the in-game items live as NFTs and the game enforces a fixed supply. The NFT is the only way to hold the item.
- Membership tokens. The NFT is the right to attend a thing, access a Discord, vote in a DAO. Holding the token is the credential.
- Tokenised real-world assets (RWA) where the NFT is wrapped in a legal structure that gives it real-world enforceability. This is its own course (RWA 301).
- Provenance for digital art. The artist mints, the buyer holds, the chain records the lineage. Even if the underlying file is copy-able, the chain says who paid the artist.
In every case, value comes from the context, not from the NFT primitive itself. The NFT is the receipt. The receipt is only valuable if the thing it receipts for is.
What Gopnik's NFT features do for you
The Gopnik wallet supports the full XLS-20 surface:
- Mint single NFTs or batched collections.
- List for sale on the in-wallet marketplace.
- Buy from any verified collection.
- Bridge to other chains (Cross-Chain 301 territory — separate cert).
- Battle in the Gopnik Arena (a P2E game we run; cert under Gaming 201).
- Verify every NFT's issuer, taxon, transfer-fee, and on/off-chain metadata.
Gopnik does not judge value, predict prices, or tell you whether the JPEG is worth €5 or €50,000. The market does that. Your job (after this course) is to make those judgements with a clear head about what you're actually holding.
Next: how the XRPL specifically handles NFTs — and why XLS-20 is unusual among blockchains.