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Crypto Basics — Start Here

Everything you need to understand how crypto wallets, keys, and blockchains actually work.

Crypto can feel overwhelming. This is the section that cuts the jargon and teaches you the mechanics — what a wallet actually holds, what a private key is, and why self-custody matters.

If you're new, start with the beginner articles. If you're coming from exchanges and want to learn why running your own wallet is worth it, the later articles are for you.

Choosing a Stablecoin and Spotting De-Peg Red Flags

Choosing a Stablecoin and Spotting De-Peg Red Flags

A practical capstone on picking the right stablecoin and chain for your use case, plus the red flags that warn you a peg is about to break.

9 min read
DAI to USDS, and Why Crypto-Collateralised Stablecoins Still Matter in 2026

DAI to USDS, and Why Crypto-Collateralised Stablecoins Still Matter in 2026

How MakerDAO became Sky, what USDS actually does, and why crypto-collateralised dollars still earn a seat at the table after the GENIUS Act.

8 min read
USDT, Offshore: Same Ticker, Three Different Trust Models on Tron, Ethereum, and TON

USDT, Offshore: Same Ticker, Three Different Trust Models on Tron, Ethereum, and TON

USDT runs on Tron, Ethereum, TON and Solana with the same ticker but four different fee structures, freeze regimes and trust assumptions. Here is what changes per chain.

8 min read
The GENIUS Act Tier: USDC, USAT, PYUSD, RLUSD — What 'Regulated' Actually Buys You

The GENIUS Act Tier: USDC, USAT, PYUSD, RLUSD — What 'Regulated' Actually Buys You

An issuer-by-issuer walk through the US-regulated stablecoin tier in 2026: charters, custody, attestations, and what regulation does — and doesn't — protect.

9 min read
What a Stablecoin Actually Is: Reserves, Redemption, and Issuer Risk

What a Stablecoin Actually Is: Reserves, Redemption, and Issuer Risk

Three radically different mechanisms hide under one word. Here is what fiat-backed, crypto-collateralised, and algorithmic stablecoins actually do — and where each one breaks.

9 min read
Staying Safe On-Chain: Scams, Red Flags, and Safe Habits

Staying Safe On-Chain: Scams, Red Flags, and Safe Habits

Crypto scams cost Americans $11.3 billion in 2025 alone — but most attacks follow predictable patterns. Learn to spot them and build the habits that keep your funds out of reach.

9 min read
Seed Phrases: Your Master Key to Every Account

Seed Phrases: Your Master Key to Every Account

How a 12 or 24-word seed phrase deterministically derives every private key in your wallet, why losing it means losing your crypto forever, and how to store it safely.

8 min read
Transaction Fees Explained: Why You Pay Them and How to Estimate Them

Transaction Fees Explained: Why You Pay Them and How to Estimate Them

What transaction fees actually pay for, why they spike during congestion, and how to use a fee estimator to avoid overpaying on Bitcoin and Ethereum.

7 min read
How a Blockchain Transaction Works, Step by Step

How a Blockchain Transaction Works, Step by Step

Traces a single send from the moment you hit confirm through signing, broadcast, the mempool, block inclusion, and final confirmation — so you understand why it takes time and why fees exist.

7 min read
What Is a Crypto Wallet — and What It Actually Stores

What Is a Crypto Wallet — and What It Actually Stores

Most people assume a crypto wallet holds their coins. It doesn't. Here's what a wallet actually stores — and why that distinction changes everything about how you protect your funds.

6 min read
Public Keys, Private Keys, and Why You Should Care

Public Keys, Private Keys, and Why You Should Care

Demystifies asymmetric cryptography with a padlock-and-key analogy so readers understand why a public address is safe to share but a private key must never leave their control.

6 min read
What Is Cryptocurrency? Coins, Tokens, and the Difference

What Is Cryptocurrency? Coins, Tokens, and the Difference

Clarifies the often-confused distinction between native coins (like BTC or ETH) and tokens issued on top of an existing chain, with practical examples and real-world implications.

7 min read
Who Keeps the Ledger? Understanding Nodes and Decentralisation

Who Keeps the Ledger? Understanding Nodes and Decentralisation

Explains what a node is, why thousands of them independently store the same data, and why that redundancy makes the network resistant to shutdown or manipulation.

7 min read
How Blocks and Chains Actually Work

How Blocks and Chains Actually Work

Walks through exactly what data lives inside a block, why each block references the one before it via a cryptographic hash, and why tampering with one block would visibly break the entire chain.

6 min read
What Is a Blockchain, Really?

What Is a Blockchain, Really?

Strips away the hype to explain a blockchain as a shared ledger that no single party controls, using a simple analogy of a public notice board that everyone can read but no one can secretly erase.

5 min read
Why Hardware Wallets Matter

Why Hardware Wallets Matter

Software wallets are convenient, but hardware wallets keep your keys offline where malware can't reach them. Here's what that actually means.

2 min read
    Crypto Basics — Start Here | Zelcore Academy