Crypto Use Cases
Two of these are money. The other six exist because a blockchain became programmable.
A use case is what a technology is actually put to work doing. This is the tour of eight of them — store of value, payments, smart contracts, DeFi, NFTs, the metaverse, tokenisation and real world assets. They are not a list. They are a stack.
The problem
Pull out the layer underneath.
All eight are standing. Take one piece out of the middle — smart contracts — and watch which of the others were resting on it. They do not all fall, and the ones that stay up are the interesting part.
Eight use cases, one board
ALL EIGHT STANDINGNothing has been touched. Press Take away smart contracts and read what follows.
Five went dark, and each one for its own reason: DeFi lost the thing that stands in the institution’s place, NFTs lost the issuer of the unique token, the metaverse lost both its objects and its rules, tokenisation lost the token that represents the asset, and real world assets fell because they are tokenisation pointed at real things. Two never noticed. Store of value asks for scarcity, transferability, divisibility, durability and trust. Payments ask for a network that verifies and records, and a wallet that signs. Neither asks for code.
That is the shape of this whole section. Crypto’s first two use cases are money functions and would have worked on a ledger that could do nothing else. Everything after them — finance without an institution in the transaction, ownership you can check in public, virtual spaces, real assets brought on-chain — exists because a blockchain stopped being only a payment system and became a platform for programmable applications.
The definition
Three things worth turning over.
Two of these correct a common mix-up. The third is a claim people assume is marketing, and it happens to be accurate.
Hands on
Pick one. See what it does and where it sits.
Eight use cases, four layers. Each one is described by what it is for and by what it stands on — nothing here is a suggestion to use any of it.
Store of value
LAYER 1 · MONEY FUNCTIONRead the layer badges in order and the stack from beat 2 reappears: money, then logic, then applications, then the bridge out to real assets.
Side by side
The same four questions, asked of both worlds.
DeFi moves financial functions into programmable networks. Switch worlds and only the answers move — the questions stay put, and neither column is a recommendation.
Classic (bank / broker)
The bridge
Four layers, bottom to top.
Every use case on the tour sits on exactly one of these — and each layer needs the one below it.
Together the eight say something simple: crypto can store value and move it, smart contracts make it programmable, and blockchains turn out to matter for ownership, identity and real assets too — which makes this an infrastructure for value, rules, ownership and markets rather than only a tradable asset. The hedges travel with it. Digital scarcity on its own does not make a store of value; that also takes market acceptance and long-term trust. And describing what a technology can do is not the same as saying it will work out, or that you should go near any of it.
Check yourself
Five questions.
Answers come straight from this lesson. Submitting completes it.