JackpotChain.io

πŸ’Ž INSTANT WINS πŸ’°βš‘ LIGHTNING FAST β–Άβ–ΆπŸ”₯ ON-CHAIN LOTTERYπŸ€– FAIR & TRANSPARENTDAI Logo $1 TICKETSπŸŽ‰ BIG JACKPOTS 🎊

The Future of Fair Play.

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Terms and Conditions
Jackpot
Players

Frequently Asked Questions

Basics & How to Play
What is JackpotChain?

JackpotChain is a global, decentralized lottery built on blockchain smart contract technology.

What makes it special?

  • Not controlled by any company - runs autonomously
  • Transparent and verifiable on the blockchain
  • Every ticket has an equal chance to win
  • The jackpot is made up of all participants' contributions
How do I participate in a draw?

It's simple! Just follow these steps:

  • 01

    Connect Your Wallet

    Choose from multiple convenient options:

    • Traditional crypto wallet (MetaMask, Coinbase, etc.)
    • Social login (Google, Apple, Facebook, X, Discord, TikTok, Telegram, GitHub, Twitch, Steam, Farcaster, Line, and more)
    • Email address or phone number
    • Passkey authentication
    • Continue as guest (auto-generated wallet)

    πŸ”’ Powered by ThirdWeb, a secure third-party service

  • 02

    Get DAI Tokens

    Ensure you have enough DAI on the Polygon PoS network for your tickets.

    How to buy DAI:

    • Click your DAI balance in the top menu, or use the "Add DAI to Wallet" button that appears when you have insufficient funds
    • Buy directly with credit/debit card or Apple Pay
    • Or purchase on exchanges like Coinbase, Kraken, or Binance and transfer to your wallet

    ✨ Gas Fees - It Depends on Your Wallet Type

    πŸ†“

    InApp Wallets (Social Login, Email, Phone)

    Gas fees are completely free! Connect with Google, Apple, Facebook, email, or any social login and we cover all transaction costs. You only need DAI for tickets.

    β›½

    External Wallets (MetaMask, Coinbase, Trust)

    A small amount of POL (Polygon's native token) is required to pay gas fees. Gas costs are typically less than $0.01 per transaction.

  • 03

    Select Tickets

    Choose how many tickets you want to buy and confirm the transaction in your wallet. You can purchase up to 1,000 tickets per transaction.

  • 04

    You're In! πŸŽ‰

    Your tickets are registered on the blockchain and you're automatically entered in the next draw.

How much does a ticket cost?
1 DAI = 1 Ticket
β‰ˆ $1 USD

Tickets are priced at 1 DAI each. DAI is a stablecoin issued by MakerDAO with its value pegged to 1 US Dollar, ensuring predictable and stable ticket pricing.

Do I need to pay gas fees?

It depends on your wallet type:

πŸ†“ InApp Wallets - FREE Gas Fees!

If you connect using any of these methods, gas fees are completely free:

  • Social login (Google, Apple, Facebook, X, Discord, TikTok, etc.)
  • Email address
  • Phone number
  • Passkey authentication
  • Guest mode
✨ JackpotChain sponsors all transaction fees!

β›½ External Wallets - Small POL Amount Required

If you connect with an external wallet like:

  • MetaMask
  • Coinbase Wallet
  • Trust Wallet
  • Other traditional crypto wallets

You'll need a small amount of POL (Polygon's native token) to pay for gas fees. Each transaction typically costs less than $0.01.

You can buy POL on the same exchanges where you buy DAI, or use the "Buy Crypto" feature in your wallet.

πŸ’‘ Tip: Want to avoid gas fees entirely? Use a social login or email to create an InApp wallet!

What are the fees?

95% Goes to the Winner! πŸ†

The vast majority of the jackpot pool goes directly to the winner. No hidden fees, no withdrawal charges, no additional deductions.

Platform Fee Breakdown

We retain a 5% service fee to cover:

  • Platform operating costs
  • Smart contract gas fees
  • Chainlink VRF oracle (random number generation)
  • Chainlink Automation (automated draws)
Cost Breakdown
Ticket Price
$1
per ticket in DAI
Gas Fee (InApp Wallet)
$0
100% Free!
Gas Fee (External Wallet)
~$0.01
in POL
Wallets & Payments
Which wallets can I use to play?

Multiple convenient options available:

πŸ”— Traditional Crypto Wallets

MetaMaskβ€’Coinbase Walletβ€’Trust Walletβ€’ and many more

πŸ“± Social & Easy Login

  • Social accounts: Google, Apple, Facebook, X (Twitter), Discord, TikTok, Telegram, GitHub, Twitch, Steam, Farcaster, Line, Coinbase
  • Email address
  • Phone number
  • Passkey authentication
  • Guest mode (auto-generated wallet)

⚠️ Important: Ensure your wallet is set to the Polygon PoS network to interact with JackpotChain.

β›½ Gas Fees for External Wallets

If using an external wallet like MetaMask or Coinbase Wallet, you'll need a small amount of POL (Polygon's native token) to pay for gas fees. Transactions typically cost less than $0.01. InApp wallets (social login, email, phone) have free gas fees sponsored by JackpotChain.

Do I need to approve DAI spending before purchasing tickets?

It depends on your wallet type:

πŸ”— Traditional Wallets (MetaMask, Coinbase, Trust Wallet)

You'll need to complete a two-step process:

1️⃣

Approve DAI Spending

First click approves the JackpotChain contract to spend the required amount of DAI from your wallet. This is a standard security feature for all ERC20 tokens.

2️⃣

Purchase Tickets

After approval is confirmed, the purchase button becomes available. Click it to complete your ticket purchase.

πŸ“± Social Login & Smart Wallets

✨ One-click purchase! Both transactions (approval and purchase) are batched together automatically. No need for two separate confirmations.

ℹ️ Why is approval needed? This security mechanism prevents unauthorized contracts from accessing your tokens. You explicitly grant permission for specific amounts.

DAI & Purchasing
What is DAI?

DAI is a stablecoin issued by MakerDAO, a decentralized autonomous organization on the blockchain.

Key Features:

  • Value Stability: DAI is pegged to the US Dollar (1 DAI β‰ˆ $1 USD)
  • Decentralized: Not controlled by any single company or government
  • Blockchain-Based: Transparent and verifiable on-chain
  • Widely Accepted: Used across DeFi platforms and applications

Why we use DAI:

DAI's price stability ensures predictable ticket pricing - 1 ticket always costs 1 DAI (β‰ˆ$1), making budgeting easy and transparent.

How do I buy DAI?

There are several convenient ways to purchase DAI:

πŸ’³ Buy Directly on JackpotChain (Recommended)

The easiest way to get DAI for tickets:

  • Click your DAI balance in the top menu anytime
  • Or use the "Add DAI to Wallet" button when you have insufficient funds
  • Pay with credit/debit card or Apple Pay
  • DAI arrives directly in your wallet
✨ Quick & Easy - No exchange needed!

🏦 Buy on Exchanges

Purchase DAI on major cryptocurrency exchanges:

Coinbaseβ€’Krakenβ€’Binance

After purchase, transfer the DAI to your wallet on the Polygon PoS network.

What payment methods are supported for buying DAI?

Our integrated payment solution supports multiple convenient payment methods:

πŸ’³
Cards
Credit/Debit
Visa, Mastercard, Amex
🍎
Apple Pay
Supported
Via select providers
πŸ€–
Google Pay
Supported
Via Transak provider

Note: Apple Pay and Google Pay availability depends on your region and the payment provider (Coinbase, Stripe, or Transak).

What are the purchase limits for buying DAI?
Minimum Purchase
$1
For all purchases through our platform
Maximum (New Users)
$1,500
Per week initially
Maximum (Over Time)
$10,000
Per week for verified users

ℹ️ Limit Increases: Your weekly purchase limit can increase from $1,500 to $10,000 over time as you build transaction history and complete verification.

Is KYC (Identity Verification) required to buy DAI?

Minimal KYC is required for your first purchase to comply with regulations and ensure user safety.

βœ… One-Time Verification

After completing KYC for your first purchase, no further verification is needed for future purchases on the same platform.

πŸ’‘ Special Case: Coinbase

If using Coinbase as your payment provider: No KYC required for purchases below $500 with a debit card.

πŸ”’ Why KYC? This protects both you and the platform from fraud while complying with local financial regulations.

What countries are supported for buying DAI?

160+ Countries Supported! 🌍

Our payment service is available in most countries worldwide.

Unsupported Regions

⚠️ The following regions are NOT supported:

Countries:

  • Afghanistan
  • Belarus
  • Bolivia
  • China
  • Colombia
  • Cuba
  • Haiti
  • Honduras
  • Iran
  • Iraq
  • Latvia
  • Lebanon
  • Myanmar
  • Pakistan
  • Qatar
  • Russia
  • Ukraine
  • United Arab Emirates
  • Venezuela
  • Yemen

Regions:

  • All African countries
  • Hawaii (USA)

πŸ‡ΊπŸ‡Έ United States: All states are supported except Hawaii.

Fairness & Transparency
How is the winner selected?

The winner is chosen using Chainlink VRF (Verifiable Random Function), which provides a provably fair and tamper-proof source of randomness directly on the blockchain.

🎲 Why VRF?

  • Cryptographically secure randomness
  • Verifiable on-chain
  • Impossible to manipulate or predict
  • Trusted by leading blockchain projects

This ensures that the selection process is completely transparent and fair for all participants.

Can I verify the fairness of the draw?

Absolutely! βœ…

Since JackpotChain operates on a public blockchain, all transactions are recorded on-chain and fully transparent.

What you can verify:

  • All ticket purchases
  • Total jackpot amount
  • Winner selection process
  • Chainlink VRF randomness proofs
  • Prize distribution transactions

You can independently verify the fairness of each draw by reviewing the smart contract interactions and cryptographic proofs on the blockchain.

Who controls the jackpot and the money?

πŸ”’ No One Controls It

The jackpot funds are held within an autonomous smart contract on the blockchain. No single entity or individual has control over the funds.

Think of it this way:

The smart contract is like a perfectly neutral robot that:

  • Only executes the rules written in its code
  • Holds the funds securely until the draw occurs
  • Automatically transfers the prize to the winner
  • Cannot be controlled or manipulated by anyone

This ensures complete transparency and security for all participants. There is no company or person who could misuse the money.

Can the operators change the rules or steal the funds?

❌ Absolutely Not!

The rules of the lottery and the handling of funds are governed by the immutable smart contract code, which cannot be changed once deployed on the blockchain.

What this means:

  • No one can alter the lottery rules
  • No one can access or steal the funds
  • No one can manipulate the draw results
  • No one can prevent prize distribution
βœ… Once deployed, the code is permanent and trustless
Where can I see all the transactions and jackpot history?

You can view all transactions on the blockchain explorer for complete transparency.

πŸ“Š What you can track:

  • All ticket purchases
  • Jackpot distributions to winners
  • Smart contract interactions
  • Complete lottery history
  • Prize amounts and recipients
πŸ”

View on Polygonscan:

JackpotChain Contract

This transparency allows you to independently verify all activities and ensure the lottery operates fairly.

Probability of Winning
What are my chances of winning the jackpot?

Your chances of winning depend on the total number of tickets sold for that particular draw.

How it works:

Since each ticket has an equal chance of winning, the more tickets you buy, the higher your probability of winning.

Example Calculation

Scenario:

  • Total tickets sold: 100
  • Your tickets: 10
  • Your winning chance: 10%

Formula: (Your Tickets Γ· Total Tickets) Γ— 100

Is there a way to improve my odds?

The only way to improve your odds is by purchasing more tickets. Each additional ticket increases your chances proportionally.

Play Responsibly

Always play within your means and set a budget. Remember, lottery games are for entertainment purposes.

More Tickets
=
Better Odds
The Draw & Winnings
When does the draw take place?

⏰ Weekly Draws

Draws take place once a week automatically.

πŸ€– Fully Automated & Decentralized

Powered by Chainlink Automation, the drawing process is:

  • Triggered automatically at preset times
  • Completely decentralized (no human intervention)
  • Resets countdown for the next round after each draw
⏱️

Check the countdown timer on our homepage to see exactly when the next draw will occur.

How are the winnings distributed?

πŸ’° Instant & Automatic!

Winnings are automatically sent to the winner's wallet - no claims, no waiting, no hassle.

How it works:

1️⃣

Winner Selected

Chainlink VRF randomly picks the winning ticket

2️⃣

Smart Contract Executes

Automatically transfers 95% of the jackpot to winner

3️⃣

Receive Your Prize

Check your wallet balance - the funds are already there!

Winner Gets
95%
of total jackpot
Platform Fee
5%
operational costs
What happens if no one buys tickets?

If the countdown ends and no tickets have been sold, the system handles it gracefully:

  • ⏭️

    Round is Skipped

    No draw takes place for the empty round

  • πŸ”„

    Countdown Resets

    A new round begins automatically

  • ❌

    No Winner

    Since there were no participants, there's no prize distribution

ℹ️ This ensures the lottery only proceeds when there are active participants
How can I withdraw my winnings?

✨ No Withdrawal Needed!

Winnings are automatically transferred to your wallet by the smart contract.

What you need to do:

πŸ‘€

Just Check Your Wallet

After the draw completes, simply open your wallet and view your balance - the winnings will already be there!

βœ…
Manual Action Required
None
100% Automatic

The funds are yours immediately - no claiming process, no forms, no waiting period.

Mailchain & JackpotChain
What is Mailchain and how is it used in JackpotChain?

Mailchain is a secure, blockchain-based email platform that lets you send and receive messages using your wallet address as your inbox. It works with Ethereum, Polygon, and other networks, and supports login via WalletConnect for external wallets only.

How JackpotChain uses Mailchain

  • When you buy tickets with an external wallet, JackpotChain can send a confirmation message to your wallet address via Mailchain.
  • All messages are sent to your-wallet-address@ethereum.mailchain.com (or the appropriate network domain).
  • No need to share a personal emailβ€”your wallet address serves as your inbox!

How to connect your external wallet to Mailchain

  1. Head to Mailchain: Sign up or log in at mailchain.com.
  2. Register your wallet: In Mailchain, select "Register Wallet" and connect your external wallet (e.g., MetaMask, Coinbase Wallet).
  3. Sign the verification message: Mailchain will ask you to sign a message to prove you own the wallet address.
  4. Access your inbox: Once verified, you can read and send messages using your wallet address as your email! You can now receive JackpotChain notifications directly.

Note: This process only works with external wallets. InApp Wallets, social logins and guest accounts are not compatible with Mailchain due to technical limitations.

πŸ”—Learn more:Mailchain for Usersβ€’Mailchain FAQ

Need More Help?

If you have any other questions or need assistance, feel free to reach out to our support team at hello@jackpotchain.io

Jackpot Chain is a decentralized interface for interacting with blockchain smart contracts.

No gambling services provided. Software only. Use at your own risk.

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