CryptoDrawz

Guides

Everything about crypto lotteries, in plain English.

84 guides on how draws are verified, how to pay with the crypto you hold, what your odds really are and how to stay safe.

Complete guides

Our long, in-depth pillar guides. Start here.

Decentralized lotteries

What decentralized really means, and how on-chain, no-loss and verifiable lotteries compare.

Crypto basics

Cryptocurrency, blockchains, smart contracts and Bitcoin mining, explained from scratch.

Lottery games and strategy

How Powerball and Mega Millions work, which game is best, and the stories behind big wins.

How to play Powerball

How to play Powerball step by step: pick 5 numbers and a Powerball, draw days, ticket price, Power Play, prize tiers with odds.

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Powerball prizes and payouts

Every Powerball prize tier with the base prize, the odds, how Power Play changes them, the annuity vs cash payout and what you really keep after tax.

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How to play Mega Millions

How to play Mega Millions after the 2025 changes: pick 5 numbers from 70 and a Mega Ball from 24, $5 tickets, built-in multiplier, odds, draw days and tips.

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Powerball vs Mega Millions

Powerball or Mega Millions? Compare ticket price, jackpot odds, odds per dollar, prizes, draw days and cash options, and see which gives you the better deal.

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Which lottery has the best odds?

Which lottery has the best odds of winning? Jackpot odds for 14 major lotteries, why smaller games beat giant jackpots, and how to compare odds per dollar.

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Best lottery to play: how to choose

No lottery beats the odds, but some are a better deal. Compare payout share, odds per dollar and trust to choose a lottery sensibly.

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Quick pick vs your own numbers

Quick pick or your own numbers? Your odds are identical, but there is one real difference: how likely you are to share a jackpot.

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Lottery winners who lost it all: what really happens

Famous lottery winners who lost their fortunes, what research really says about winners, and why the 70 percent go broke claim is shaky.

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Is playing the lottery gambling?

Is the lottery gambling? Yes, by any legal or psychological definition. Why lotteries are treated differently and how to keep play healthy.

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What happens to a lottery annuity if the winner dies?

What happens to a Powerball or Mega Millions annuity if the winner dies: payments to the estate, heirs, tax and planning questions.

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Can lottery winners stay anonymous?

Can you win the lottery anonymously? Which states let winners stay private, how trusts work and the privacy steps that matter.

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How lottery jackpots are calculated

How the advertised lottery jackpot and the cash option are worked out, where jackpot money comes from, why interest rates matter and why big jackpots rise so fast.

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Lottery rollovers explained

What a lottery rollover is, why jackpots roll over, how long they can last, how odds relate to rollovers and what it means for your chances and for prize sharing.

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How lottery draw machines work

How lottery ball machines pick numbers, how random number generators are used instead, the security checks around draws and how online and crypto lotteries differ.

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Unclaimed lottery prizes: what happens to them

What happens to unclaimed lottery prizes: claim deadlines, where the money goes, famous expired tickets, how to check old tickets and how to avoid missing a win.

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Probability basics for lottery players

Probability made simple for lottery players: chance, combinations, independence, expected value and variance, with plain examples and no heavy maths.

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Bitcoin lottery mining

The odds, costs and real stories of solo mining Bitcoin.

Basics

What a crypto lottery is, how to judge one, and how it compares.

Fairness and randomness

How winners are chosen, and how to check a draw yourself.

What is drand, the public randomness beacon?

drand is a public randomness beacon run by independent organisations. Learn how it produces unpredictable.

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Verifiable randomness explained

How can you trust a random number? Verifiable randomness comes with proof. Learn how VRFs.

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How random number generators work in lotteries

Pseudo-random vs true random: how lottery RNGs work, why seeds matter, how drawing machines compare, and what makes a number generator trustworthy.

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SHA-256 hashes explained for lottery fairness

SHA-256 turns any data into a short fingerprint. Learn how hashes work, why they cannot be reversed, and how a ticket-list hash lets you check a lottery draw.

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How to verify a CryptoDrawz draw, step by step

A hands-on guide to checking any CryptoDrawz draw yourself: find the ticket list, look up the drand value, recompute the winners and compare every hash.

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Provably fair vs audited lotteries

Provably fair and audited are not the same thing. Learn what each claim proves, what it leaves out and how to combine them to judge a crypto lottery.

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Server seed, client seed and nonce explained

What the server seed, client seed and nonce are in provably fair games, how they combine into a result, why each exists and how to check them yourself.

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Provably fair vs RNG

Provably fair and RNG are not opposites. A certified RNG is tested by labs, while provably fair lets players verify each result.

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How to verify a provably fair bet, step by step

A practical walkthrough for verifying a provably fair bet: get the seeds, hash the server seed, compute the HMAC.

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What is Chainlink VRF?

Chainlink VRF gives smart contracts random numbers with a cryptographic proof. How a request works, how it is verified on-chain, and how it compares with drand.

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Buy and play

Step-by-step guides to buying tickets with the crypto you hold.

How to buy crypto to pay for lottery tickets

A beginner guide to buying the crypto you need for lottery tickets: choose an exchange, buy a stablecoin, withdraw to the right network.

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How to buy lottery tickets with Bitcoin

A clear guide to buying lottery tickets with Bitcoin: choosing the amount, paying on the Plisio page, confirmation times, fees.

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How to buy lottery tickets with USDT

Pay for lottery tickets with USDT: pick the right network, avoid the biggest mistake of sending on the wrong chain.

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How to buy lottery tickets with Ethereum

Buy lottery tickets with ETH: how the payment page works, why gas fees matter for a small purchase.

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How to buy lottery tickets with USDC

Pay with USDC for lottery tickets: pick the network, send the exact amount, pay from your wallet on Arbitrum or through the payment page.

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How to play a crypto lottery with MetaMask

Connect MetaMask, add Arbitrum, sign the order and pay in USDC or USDT. A safe, step-by-step guide to playing a crypto lottery with MetaMask.

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How to play a crypto lottery with Trust Wallet

Use Trust Wallet to buy lottery tickets: connect with WalletConnect on desktop or mobile, switch to Arbitrum, sign the order and pay in USDC or USDT.

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How weekly lottery draws work

How a weekly crypto lottery schedule works: when tickets close, what happens at the cut-off.

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What to do if you win a crypto lottery

Won a crypto lottery prize? Follow this practical checklist: verify the win, protect your wallet, claim safely, plan for tax, avoid scams and keep your privacy.

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Odds and maths

Your real chances, prize pools and the myths to ignore.

Safety and responsible play

Scams, budgets and where to get help.

Wallets and crypto basics

Wallets, networks, fees and stablecoins in plain English.

What to check before you play and what winnings can mean.

Reference

Glossary, a complete FAQ and the history behind it all.