Block 02 · 03
What Is Cryptocurrency
Bitcoin, Ethereum, blockchain, and US spot crypto ETFs — explained simply.

Crypto is not just a number on a screen. Behind it sits an infrastructure: a wallet, a network, a transaction and a record on the blockchain. Tap any element of the chain.
The place through which you manage your crypto assets.
A practical path: buying crypto
Every operation follows the same path: it starts in a wallet, reaches the network, gets verified by participants and only then becomes a record on the blockchain.
Educational example. Not investment advice.
In plain words
Take USDC — a digital dollar. One token always equals one dollar, and for every token issued, the issuer holds an actual dollar in a US bank account or in short-term US Treasury securities, publishing a report on those reserves. The only difference from a regular dollar is its form: it moves across a public network directly from address to address, around the clock, within minutes. Same purchasing power, but with internet-speed logistics.
Cryptocurrency is a digital asset whose ownership rights are recorded in a shared public database. The record can't be falsified: it's simultaneously held by tens of thousands of independent computers around the world.
What this delivers in practice. Value transfers directly and around the clock, with no weekends or banking hours. That's why crypto has become a settlement layer for modern markets: money arrives in an account within minutes rather than days.
Two different roles. Bitcoin is a standalone asset with a limited — only 21 million coins will ever exist. s like are digital dollars: one token equals one dollar, backed by reserves held in US banks and Treasuries.
How this works in the US. The largest asset managers hold bitcoin through exchange-traded funds on the NYSE and Nasdaq, and USDC is issued under US regulation with public reporting on its reserves. This is already part of everyday financial infrastructure.
Try it yourself
Crypto moved — what that gives on the amount in the trade
Risk management — 20% of $50,000 in the trade: $10,000
+$0
The trade holds $10,000, position $50,000 at x5 leverage.
Crypto swings far harder than equities, so position size decides everything: 20% of capital in the trade, leverage multiplies the result, the rest untouched.
Common beginner mistakes
- Confusing stablecoins with standalone assets — they serve different purposes
- Treating blockchain as a closed system: the ledger is public and verifiable
- Ignoring the transfer network — each network has its own address format
- Skipping a check of the stablecoin issuer's reporting before a large transfer