Crypto, for Beginners
Beginner guides to the crypto terms you actually run into — Bitcoin, Ethereum, wallets, DeFi, gas, and KYC. One clear answer each, then why it matters.
Updated September 2026 · Reviewed by the PipeFlare team
All guides
What is Bitcoin
Bitcoin is digital money you can send anywhere in the world without a bank
Beginner · Cryptocurrency
What is Ethereum
Ethereum is a programmable blockchain that runs smart-contract apps without a company in the middle
Beginner · Smart contract platform
What is a crypto wallet
A crypto wallet stores the private keys that prove which coins on the blockchain are yours
Beginner · Wallet category
What is DeFi
DeFi is financial services that run on blockchains, with no bank or broker in the middle
Intermediate · Financial framework
What is an airdrop
An airdrop is when a project gives its new token to wallets that meet certain rules
Beginner · Token distribution
What is gas and gwei
Gas is the fee you pay to use Ethereum, and gwei is the tiny unit it's priced in
Beginner · Network mechanism
What is KYC
KYC stands for Know Your Customer — the ID check a regulated exchange runs before letting you trade
Beginner · Compliance process
What is Coinbase
Coinbase is a US-listed, regulated cryptocurrency exchange where you buy, sell, and hold crypto with a bank-linked account
Beginner · Cryptocurrency exchange
Who is Satoshi Nakamoto
Satoshi Nakamoto is the pseudonymous person or group who created Bitcoin and published its whitepaper in 2008
Beginner · Bitcoin history
Free crypto tax tools
Free crypto tax tools calculate your capital gains and losses from exchange transaction data or wallet history
Intermediate · Crypto tax
Crypto loans
A crypto loan lets you borrow cash or stablecoins by locking up crypto as collateral without selling it
Intermediate · DeFi / lending
Crypto tax by country
Most countries tax crypto as capital gains or income — the rate and reporting method differ by jurisdiction
Intermediate · Crypto tax
Crypto free zones
A crypto free zone is a designated area where businesses can register and conduct crypto activity under a special regulatory and tax framework
Intermediate · Regulation & tax
Free crypto courses
Free crypto courses teach blockchain fundamentals, trading basics, and DeFi protocols through video lessons, readings, and quizzes
Beginner · Education
Crypto jobs
Crypto jobs span software engineering, product, marketing, research, and community roles at blockchain companies and DeFi protocols
Intermediate · Web3 careers
Free crypto APIs
A free crypto API gives developers real-time and historical price data, on-chain information, or market data without upfront cost
Intermediate · Developer tools
Bitcoin Dominance
Bitcoin dominance is Bitcoin's share of the total crypto market capitalization, expressed as a percentage
Beginner · Market metric
Crypto Fear & Greed Index
The crypto Fear and Greed Index is a 0–100 sentiment gauge — 0 is 'extreme fear', 100 is 'extreme greed'
Beginner · Market sentiment
How to create a crypto faucet
A crypto faucet is a simple web app paired with a hot wallet, a captcha service, and a payout integration — funded almost entirely by ad revenue
Intermediate · Web3 development
History of the first Bitcoin faucet
The first Bitcoin faucet was launched by developer Gavin Andresen on June 12, 2010, giving 5 BTC to anyone who solved a captcha
Beginner · Bitcoin history
Testnet crypto faucets explained
A testnet faucet gives developers free test-network coins — like Sepolia ETH or Bitcoin regtest coins — that have no market value and cannot be sold
Intermediate · Developer tools
How crypto exchanges make money
Crypto exchanges make money mainly from trading fees, the spread built into simple buy/convert screens, withdrawal fees, and a cut of staking or lending yield
Intermediate · Exchange economics
How to convert crypto to cash
You can convert crypto to cash by selling on an exchange and withdrawing, using a Bitcoin ATM, trading peer-to-peer, or spending directly with a crypto debit card
Beginner · Practical crypto
Bitcoin price prediction models explained
Bitcoin price models — power law, stock-to-flow, ML/LSTM, and sentiment analysis — each fit a pattern to past price data, and every one has well-documented failure points
Intermediate · Market analysis
USDT to cash P2P guide
USDT-to-cash P2P trading uses an exchange's escrow-based marketplace or a local OTC desk to swap USDT directly for local currency with another person
Intermediate · Practical crypto
Crypto exchange license in India
India has no standalone crypto exchange license — Virtual Digital Asset Service Providers register as reporting entities with the Financial Intelligence Unit-India (FIU-IND) under the Prevention of Money Laundering Act
Intermediate · Regulation & compliance
Crypto inheritance planning
Crypto inheritance planning is the set of steps — seed phrase custody, multisig or inheritance-specific vaults, will language, and tax planning — that lets heirs actually access your crypto after death
Intermediate · Practical crypto
Crypto payment gateway
A crypto payment gateway lets a merchant accept Bitcoin, Ethereum, stablecoins, or other crypto for goods and services — either self-hosted (BTCPay Server) or as a hosted processor (CoinPayments, NOWPayments, OpenNode, Coinbase Commerce)
Intermediate · Merchant tools
Cold wallet vs hot wallet
A cold wallet keeps your private keys fully offline; a hot wallet stays connected to the internet for everyday use
Beginner · Wallet category
What is a seed phrase
A seed phrase is a list of 12 or 24 ordinary words that can restore your entire wallet and every key derived from it
Beginner · Wallet security
How to start investing in crypto
Starting with crypto means choosing a regulated exchange, completing identity verification, funding the account, and deciding how much to move into self-custody
Beginner · Practical crypto
Next Bitcoin halving date
A Bitcoin halving cuts the block reward paid to miners in half, and happens roughly every four years, every 210,000 blocks
Beginner · Bitcoin mechanics
How to track a crypto wallet address
Paste any public wallet address into a block explorer like mempool.space or Etherscan to see its balance and full transaction history
Beginner · Practical crypto
How to store a seed phrase safely
The safest way to store a crypto seed phrase is offline, on a physical medium, split or backed up so no single loss destroys it
Beginner · Wallet security
Seed phrase generator scams explained
A tool claiming to generate a crypto seed phrase that already holds a balance is a scam or a nonfunctional gimmick, not a shortcut
Beginner · Wallet security
DeFi risks and regulation explained
DeFi, CeFi, and TradFi differ in who holds custody and enforces the rules: no one, a company, or a regulated institution, and each carries a different, well-documented risk profile
Intermediate · Financial framework
How to farm crypto airdrops
Farming a crypto airdrop means deliberately using a pre-token protocol the way its eventual airdrop is most likely to reward, hoping to qualify for a future distribution
Intermediate · Token distribution
Is a crypto airdrop legit
A crypto airdrop is legitimate when it comes from a project's verified official channel and never asks for a seed phrase, private key, or upfront payment
Beginner · Token distribution
XRP Flare airdrop explained
Flare Networks distributed its FLR token to XRP holders based on a snapshot taken on December 12, 2020, with claims opening January 9, 2023
Beginner · Token distribution
How to market a crypto airdrop campaign
Designing an airdrop campaign means deciding snapshot criteria, Sybil-resistance rules, claim-page security, and legal structure before any marketing begins
Intermediate · Token distribution
What is post-quantum cryptography
Post-quantum cryptography is a new generation of encryption designed to stay secure even against a future quantum computer
Intermediate · Security concept
How cross-chain bridge exploits work
A cross-chain bridge exploit happens when an attacker tricks a bridge's mint-and-lock logic into creating tokens that were never backed by locked funds
Intermediate · Security concept
What to do if your wallet drops chain support
Your funds stay safe on the blockchain itself even after a wallet app drops support for that chain, because they're tied to your seed phrase, not the app
Beginner · Wallet management
Crypto faucet bots
A crypto faucet bot is third-party software that claims faucet rewards for you on a timer, which nearly every faucet's terms treat as grounds for termination
Beginner · Automation tool
Ethereum gas fee scams and gasless transactions explained
A message asking you to pay Ethereum gas to unlock free crypto is always a scam; a real gasless transaction works the other way, with someone else's wallet covering the gas for you
Beginner · Wallet security
How does Bitcoin mining work
Bitcoin mining is the process of using computing power to confirm transactions and add new blocks to the blockchain, earning newly created bitcoin and fees in return
Beginner · Blockchain process
Bitcoin technical terms: Ordinals, Taproot, SegWit explained
Ordinals, Taproot, and SegWit are three separate Bitcoin protocol upgrades and tools: SegWit and Taproot changed how transactions are built, and Ordinals is a way of numbering and inscribing data onto individual satoshis
Intermediate · Protocol upgrade
How to buy Bitcoin on Cash App explained
Buying Bitcoin on Cash App means verifying your identity, then purchasing any dollar amount of Bitcoin from inside the app's Bitcoin tab, which you can hold there or withdraw to your own wallet
Beginner · Buying guide
Free crypto generator and flash crypto scams explained
A tool claiming to generate free crypto, or 'flash' a balance into your wallet, cannot create real coins; new coins only ever enter circulation through a blockchain's own mining or staking rules
Beginner · Wallet security
Self-custody vs custodian
Self-custody means you alone hold the keys, while a custodian holds them for you and takes on the operational risk
Intermediate · Custody model
Is crypto investing worth it
Crypto investing is worth it only with money you can afford to lose completely, and for most people that means a small slice of savings
Beginner · Investing risk
Is crypto investing halal
Qualified Islamic scholars remain split. Some rule specific coins permissible under conditions, and others rule the category impermissible, with no single unified verdict
Beginner · Islamic finance
How to use this hub
Crypto's vocabulary is intimidating on purpose. Most terms describe simple ideas wrapped in jargon by exchanges, developers, and marketers. Each guide here picks one term, gives the one-sentence answer first, then explains it for a curious beginner. You can read them in any order, and nothing here is financial advice.
If you're wondering which wallet to actually use, our free crypto wallet guide skips the background and gets straight to the practical picks.
If you are brand new, start with Bitcoin and crypto wallets. Together they cover what crypto actually is and how you hold it yourself. If you have already opened an exchange account, KYC and gas/gwei are the two terms you will hit on day one. DeFi and airdrops sit one layer deeper and assume you already control a wallet.
Two things are worth calling out early: your seed phrase is the recovery phrase that actually controls your funds, not your exchange password — whoever has it can move your funds, and if you lose it with no backup, the funds are gone for good. A centralized exchange (like Coinbase) holds your funds and matches trades through a company-run order book, while a decentralized exchange lets you trade directly from your own wallet via smart contracts with no company custody — our DeFi guide covers the full tradeoffs. An airdrop is a free token distribution to wallets that meet a project's criteria — usually prior on-chain activity — with no purchase required to qualify; our airdrop guide explains how to actually position yourself for one.
A handful of guides go beyond the basics once you're past day one. If your funds span more than one chain, our what to do if your wallet drops chain support guide covers what actually changes (and what doesn't) when an app sunsets a chain — the coins are never at risk, only the in-app view of them. How cross-chain bridge exploits work explains why bridges keep showing up as crypto's biggest hacks, and what is post-quantum cryptography looks at whether a future quantum computer is a real threat to Bitcoin and Ethereum's signatures today (short answer: not yet). If you've ever seen a faucet auto-claim script and wondered whether it's worth the risk, our crypto faucet bots guide covers what actually happens to your balance once a faucet catches one.
Every guide ends with a Sources block linking to primary documentation — bitcoin.org, ethereum.org, the EIP-1559 spec, and FinCEN — so you can verify the claim yourself. The hub is current to 2026 and reflects the upgrades that matter: Ethereum's 2022 move to proof-of-stake, EIP-1559's burn mechanism from Aug 2021, Bitcoin's 2024 halving, and the May 2025 Pectra upgrade.
All guides compared
Side-by-side of every guide, the difficulty level, and where you'll actually see the term. Tap any row for the full guide.
| Topic | Category | Difficulty | Where you'll see it |
|---|---|---|---|
| What is Bitcoin | Cryptocurrency | Beginner | Wallet apps, exchanges, news headlines, payment processors, ETFs |
| What is Ethereum | Smart contract platform | Beginner | Wallets, DeFi apps, NFT marketplaces, USDC and stablecoin transfers, Layer 2s like Base and Arbitrum |
| What is a crypto wallet | Wallet category | Beginner | Every crypto transaction — exchange accounts, DeFi apps, NFT mints, airdrop claims, faucet payouts |
| What is DeFi | Financial framework | Intermediate | DEXs like Uniswap, lending markets like Aave, stablecoin yield, liquid staking, perps |
| What is an airdrop | Token distribution | Beginner | Project launch announcements, your wallet's claim page, crypto Twitter/X |
| What is gas and gwei | Network mechanism | Beginner | Every wallet's transaction confirmation screen, gas trackers like etherscan.io/gastracker |
| What is KYC | Compliance process | Beginner | Signing up for any regulated exchange (Coinbase, Kraken, Binance, Gemini) or EU CASP under MiCA |
| What is Coinbase | Cryptocurrency exchange | Beginner | Buying your first crypto with a bank transfer or card, referral bonus links, tax-software imports, ETF custodian news |
| Who is Satoshi Nakamoto | Bitcoin history | Beginner | Bitcoin whitepaper, early Bitcoin forums, crypto news articles, wallet naming |
| Free crypto tax tools | Crypto tax | Intermediate | Tax season, exchange export menus, crypto accounting software |
| Crypto loans | DeFi / lending | Intermediate | DeFi lending protocols (Aave, Compound), CeFi platforms, Bitcoin-backed loan services |
| Crypto tax by country | Crypto tax | Intermediate | Tax reporting, exchange KYC forms, crypto accounting software country selection |
| Crypto free zones | Regulation & tax | Intermediate | Crypto business incorporation, exchange licensing, offshore structuring discussions |
| Free crypto courses | Education | Beginner | Coursera, edX, YouTube, exchange learn-and-earn programs, free DeFi docs |
| Crypto jobs | Web3 careers | Intermediate | Crypto-specific job boards, LinkedIn, Discord protocol servers, grant programs |
| Free crypto APIs | Developer tools | Intermediate | Crypto apps, portfolio trackers, trading bots, price widgets, on-chain analytics tools |
| Bitcoin Dominance | Market metric | Beginner | TradingView charts (BTC.D ticker), CoinGecko/CoinMarketCap home pages, market-sentiment dashboards |
| Crypto Fear & Greed Index | Market sentiment | Beginner | Alternative.me's daily gauge, most crypto dashboards, TradingView widgets, wallet apps |
| How to create a crypto faucet | Web3 development | Intermediate | Faucet-operator forums, crypto ad networks, FaucetPay integrations, Lightning node setups |
| History of the first Bitcoin faucet | Bitcoin history | Beginner | Crypto history articles, faucet-listing sites, recurring 'is the Bitcoin faucet back' search queries |
| Testnet crypto faucets explained | Developer tools | Intermediate | Ethereum Sepolia and Hoodi faucets, Bitcoin regtest/testnet setups, Solana devnet faucets, dApp testing workflows |
| How crypto exchanges make money | Exchange economics | Intermediate | Every exchange's fee schedule page, public 10-K filings for listed exchanges like Coinbase, trading-fee comparison sites |
| How to convert crypto to cash | Practical crypto | Beginner | Exchange withdrawal pages, Bitcoin ATM kiosks, P2P marketplaces, Coinbase Card and Crypto.com Visa Card |
| Bitcoin price prediction models explained | Market analysis | Intermediate | Crypto Twitter/X price charts, TradingView indicators, YouTube analysis channels, research papers |
| USDT to cash P2P guide | Practical crypto | Intermediate | Binance P2P, Bybit P2P, OKX P2P, local OTC desks in Dubai/Istanbul/Bangkok, remittance and currency-control markets |
| Crypto exchange license in India | Regulation & compliance | Intermediate | Crypto business incorporation in India, FIU-IND public registrations list, exchange terms of service referencing PMLA compliance |
| Crypto inheritance planning | Practical crypto | Intermediate | Estate planning discussions, wallet documentation, multisig inheritance products, executor instructions, tax basis calculations |
| Crypto payment gateway | Merchant tools | Intermediate | E-commerce checkout, donation pages, invoice generators, VPN sign-up flows, freelancer payment pages, self-hosted online stores |
| Cold wallet vs hot wallet | Wallet category | Beginner | Hardware wallet setup screens, exchange withdrawal warnings, self-custody guides, wallet-drainer scam post-mortems |
| What is a seed phrase | Wallet security | Beginner | Wallet setup and recovery screens, hardware wallet onboarding, phishing pages asking you to 're-verify' a wallet |
| How to start investing in crypto | Practical crypto | Beginner | Exchange sign-up flows, onboarding tutorials, self-custody guides, crypto YouTube 'getting started' videos |
| Next Bitcoin halving date | Bitcoin mechanics | Beginner | Block explorers, mining pool dashboards, countdown widgets, crypto news coverage every ~4 years |
| How to track a crypto wallet address | Practical crypto | Beginner | Confirming a payment arrived, checking a wallet before sending funds to it, verifying an exchange's proof-of-reserves address |
| How to store a seed phrase safely | Wallet security | Beginner | Hardware wallet setup screens, self-custody guides, inheritance planning discussions |
| Seed phrase generator scams explained | Wallet security | Beginner | Search results for 'seed phrase generator', YouTube 'crypto hack' videos, Telegram and Discord scam links |
| DeFi risks and regulation explained | Financial framework | Intermediate | DeFi protocol risk disclosures, regulatory news coverage, exchange listing compliance pages |
| How to farm crypto airdrops | Token distribution | Intermediate | Airdrop farming Discord and Telegram groups, crypto Twitter/X 'airdrop guide' threads, bridging and testnet activity |
| Is a crypto airdrop legit | Token distribution | Beginner | DMs and comments claiming you were 'selected', fake claim pages, compromised official social accounts |
| XRP Flare airdrop explained | Token distribution | Beginner | Flare's official claim portal, XRP holder communities, exchange airdrop-distribution announcements |
| How to market a crypto airdrop campaign | Token distribution | Intermediate | Project governance forums, tokenomics design docs, Sybil-resistance methodology write-ups |
| What is post-quantum cryptography | Security concept | Intermediate | NIST's published FIPS 203/204/205 standards, bank and regulator pilot programs, wallet and browser security roadmaps |
| How cross-chain bridge exploits work | Security concept | Intermediate | Cross-chain swaps, wrapped-token transfers, multi-chain DeFi apps, bridge audit reports |
| What to do if your wallet drops chain support | Wallet management | Beginner | Wallet app sunset and deprecation announcements, in-app banners about ending network support, wallet blog posts and help centers |
| Crypto faucet bots | Automation tool | Beginner | [GitHub](https://github.com) auto-claim repositories, paid faucet collector downloads, promotional videos, [Telegram](https://telegram.org) bot listings |
| Ethereum gas fee scams and gasless transactions explained | Wallet security | Beginner | DMs and comments claiming a free token drop, celebrity-impersonation livestream giveaways, wallet and DeFi apps that sponsor gas through a paymaster |
| How does Bitcoin mining work | Blockchain process | Beginner | Mining pool dashboards, block explorers, hashrate and difficulty charts, ASIC hardware reviews |
| Bitcoin technical terms: Ordinals, Taproot, SegWit explained | Protocol upgrade | Intermediate | Wallet address formats (bc1q vs bc1p), node software choices, Bitcoin inscription marketplaces |
| How to buy Bitcoin on Cash App explained | Buying guide | Beginner | Cash App's Bitcoin tab, identity-verification prompts, round-up settings, on-chain and Lightning withdrawal screens |
| Free crypto generator and flash crypto scams explained | Wallet security | Beginner | YouTube tutorials, Telegram and Discord scam links, downloadable 'flasher' software, in-person and peer-to-peer crypto trades |
| Self-custody vs custodian | Custody model | Intermediate | Exchange withdrawal prompts, hardware wallet setup flows, institutional Bitcoin ETF custody disclosures, custodial staking sign-ups |
| Is crypto investing worth it | Investing risk | Beginner | [Robinhood](https://robinhood.com) and [Coinbase](https://www.coinbase.com) buy screens, retirement-account marketing, financial-advisor conversations, crypto influencer content |
| Is crypto investing halal | Islamic finance | Beginner | Islamic-finance forums, Sharia-compliance screening apps, exchange FAQ pages, scholarly fatwa databases |
Common questions
Quick answers to what people ask before diving into a specific guide. If seed-phrase security is what brought you here, our wallet guide walks through backing one up properly.
Where should a complete beginner start?
The literal first step is opening an account on a regulated exchange (see our sign-up bonus comparisons), completing KYC identity verification, and buying a small amount you're comfortable with — everything else follows from there. Read Bitcoin and crypto wallets first to understand what you're buying and how to hold it yourself, then Ethereum and KYC to cover the rest of what you'll see on any exchange or app.
What is a blockchain, exactly?
A blockchain is a shared digital ledger duplicated across many independent computers, with new transactions bundled into linked 'blocks' that are added in order and cannot be quietly edited afterward. Each block references the one before it, so altering old data would mean rewriting every block after it across a majority of those computers at once — which is what makes the record tamper-resistant without a bank or company managing it. Bitcoin and Ethereum are both blockchains; wallets, exchanges, and DeFi apps all read from and write to this same shared ledger instead of a private database.
What is the difference between a coin and a token?
A coin has its own independent blockchain — Bitcoin, Ethereum, and Solana are all coins, native to their own network. A token is built on top of someone else's blockchain using a smart-contract standard, like the thousands of ERC-20 tokens (USDC, UNI, SHIB) that run on Ethereum without needing their own chain. Both can be bought, sold, and held the same way in a wallet or exchange — the distinction is purely about which blockchain actually processes the transaction.
What is the difference between Bitcoin and Ethereum?
Bitcoin is digital money with a fixed supply of 21 million coins, designed for peer-to-peer payments. Ethereum is a programmable blockchain that runs smart contracts — small programs that can hold and move value. That is why DeFi, NFTs, and most stablecoins live on Ethereum, not Bitcoin.
What's the safest way to buy my first crypto?
The safest way to buy your first crypto is through an exchange that's licensed or registered to operate in your country, has a public track record free of major unresolved security breaches, and is transparent about its reserves or insurance coverage — not necessarily the exchange with the biggest sign-up bonus. Check those three things before you fund an account: regulatory status where you live, security history, and reserve or insurance disclosures. Our /bonus page compares regulated exchanges side by side if you want a starting point, but the vetting criteria above matter more than the size of any bonus.
How much money do I need to get started in crypto?
Most regulated exchanges let you open an account and buy crypto with as little as a few dollars, so there is no meaningful minimum bankroll required to get started. Very small purchases can lose a larger share of their value to network or trading fees, so buying a bit more than the bare minimum is often more practical than the smallest amount allowed. There is no universally 'right' starting amount — begin with whatever you're genuinely comfortable risking while you learn, not a number a headline claims you need.
Do I need to understand all of this before I start?
No. You need a basic grasp of wallets and KYC to use an exchange safely. You can learn DeFi, airdrops, and gas as you encounter them. The one rule that never bends: do not sign a transaction you do not understand.
Why does every crypto page mention gas fees?
Because every Ethereum and Layer 2 transaction costs gas to run. Since EIP-1559 in August 2021, the fee has two parts — a base fee set by the network and burned, and a small tip to the validator. Bitcoin has its own version measured in sats per virtual byte.
Is crypto safe to learn about?
Reading is risk-free. Real risk starts the moment you hold real funds — phishing sites, fake claim pages, wrong-network sends, and contract approvals you did not read can all drain a wallet. Each guide here flags the common failure modes so you can avoid them.
Do these guides cover taxes?
These guides mention tax treatment only where it is directly relevant — for example, the IRS treats airdrops as ordinary income at fair-market value on receipt in the US. For your country and situation, talk to a tax professional. Crypto tax rules vary widely and change often.
Sources
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