How BASE5050 Works
BASE5050 brings transparent Web3 raffles to Base. Create and enter ETH and USDC 50/50 raffles with verified winners, automated settlement, and instant payouts, with no claiming required. Every draw is powered by RandProofRNG, which provides verifiable randomness so participants can confirm that each winner was selected fairly. RandProofAutomation then finalizes each raffle the moment it ends or sells out, removing manual steps and keeping the process fast and trustworthy. Built on Base Mainnet, BASE5050 offers low fees, a smooth experience, and a raffle system where every outcome can be verified on-chain.
ETH & USDC Powered
Hold ETH Or USDC To Play
BASE5050 accepts ETH and USDC. Creating an ETH raffle costs 0.01 ETH: 0.0099 ETH to the platform wallet and 0.0001 ETH to the RandProof RNG/Automation reserve. USDC raffles cost $20.00 USDC plus the same 0.0001 ETH reserve. Tickets are 0.0025 ETH or $5.00 USDC.
Download Wallets
Connect A Wallet With ETH Or USDC
Rafflenomics
Creator Break-Even Analysis
Creators keep 50% of every ticket sale. To recover the creation fee, a raffle needs to sell enough tickets where that 50% share equals what was paid up front.
ETH Raffle
To recover the 0.01 ETH creation fee, the raffle needs to sell enough tickets where 50% of sales equals 0.01 ETH.
Break-Even: 8 Tickets Sold (8 × 0.0025 ETH × 50% = 0.01 ETH)
| Tickets Sold | Total Sales | Creator (50%) | Net P/L | ROI |
|---|---|---|---|---|
| 50 | 0.125 ETH | 0.0625 ETH | +0.0525 ETH | +525% |
| 100 | 0.25 ETH | 0.125 ETH | +0.115 ETH | +1,150% |
| 500 | 1.25 ETH | 0.625 ETH | +0.615 ETH | +6,150% |
| 1,000 | 2.5 ETH | 1.25 ETH | +1.24 ETH | +12,400% |
| 10,000 | 25 ETH | 12.5 ETH | +12.49 ETH | +124,900% |
USDC Raffle
To recover the $20.00 USDC creation fee, the raffle needs to sell enough tickets where 50% of sales equals $20.00 USDC.
Break-Even: 8 Tickets Sold (8 × $5.00 USDC × 50% = $20.00 USDC)
| Tickets Sold | Total Sales | Creator (50%) | Net P/L | ROI |
|---|---|---|---|---|
| 50 | $250 USDC | $125 USDC | +$105 USDC | +525% |
| 100 | $500 USDC | $250 USDC | +$230 USDC | +1,150% |
| 500 | $2,500 USDC | $1,250 USDC | +$1,230 USDC | +6,150% |
| 1,000 | $5,000 USDC | $2,500 USDC | +$2,480 USDC | +12,400% |
| 10,000 | $50,000 USDC | $25,000 USDC | +$24,980 USDC | +124,900% |
Net profit/loss and ROI are calculated against the creation platform fee. For USDC raffles, the 0.0001 ETH finalization reserve is excluded since it funds RandProof RNG and automation, not the platform.
Powered By RandProof
Verifiable Randomness & Decentralized Automation
Live Contract Stats
BASE5050 On-Chain Network Totals
Aggregated directly from the Base BASE5050 smart contract.
Total Raffles
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ETH Distributed
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ETH
USDC Distributed
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Active Wallets
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Active Raffles
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Choose Your Network
Start Creating Or Joining Raffles
Base Mainnet
BASE5050 runs on Base Mainnet, a secure, low-cost, Ethereum-secured L2. Raffles accept both ETH and native USDC for creation and tickets.
Chain ID: 8453
Raffle Flow
Create, Buy, Share, Finalize
Create a Raffle
Hold ETH or USDC in your wallet, name your 50/50 raffle, set the duration, and submit the creation payment: 0.01 ETH, or $20 USDC + 0.0001 ETH.
Buy Tickets
Join active raffles with ETH or USDC. Each ticket costs 0.0025 ETH or $5.00 USDC and is recorded transparently on-chain.
Share Your Link
Every raffle gets a unique shareable link for your community, audience, or party. Post it anywhere to fill tickets faster.
Winner Selection & Settlement
When the raffle ends or sells out, RandProofAutomation triggers finalization and RandProofRNG supplies verifiable randomness. The contract pays the winner and creator 50/50 automatically. No claiming needed.
Join 50/50 Raffles On Base
- *ETH creation payment: 0.01 ETH
- *Platform fee: 0.0099 ETH (to platform wallet)
- *RandProof reserve: 0.0001 ETH (RNG + Automation, auto-funded at creation)
- *USDC creation payment: $20.00 USDC + 0.0001 ETH
- *Tickets cost: 0.0025 ETH or $5.00 USDC each
- *Winners receive: 50% of the total prize pool
- *Creators receive: 50% of the total prize pool
- *All ticket purchases, finalization events, and prize distributions are transparent and on-chain
Recently Completed Raffles
View completed 50/50 raffle results on BASE5050. Winners are selected with RandProofRNG and finalized with RandProofAutomation or fallback settlement.
- *All raffles use RandProofRNG randomness
- *RandProofAutomation can trigger finalization when raffles end or sell out
- *Prize distribution is automatic after finalization
- *Full transaction history is available on BaseScan
FAQ
Frequently Asked Questions
Does BASE5050 use RandProofRNG?
Yes. BASE5050 uses RandProofRNG verifiable randomness for verifiable winner randomness on Base.
What does RandProofAutomation do?
RandProofAutomation can trigger raffle finalization when a raffle reaches its end time or sells out, helping the draw move from ticket sales to winner selection without manual operation.
How are RNG costs funded?
Each creation payment includes a 0.0001 ETH finalization reserve that funds RandProofRNG draws and Automation upkeep. Anyone can also top up the shared reserve permissionlessly on-chain.
Can the contract owner manipulate results?
No. Winner selection uses RandProofRNG randomness fulfilled on-chain. No admin can choose the winner or replace the random result.
Can I verify the winner myself?
Yes. The raffle contract events, RandProofRNG request, fulfillment, finalization, and payout history are visible on-chain.
What if someone controls multiple wallets?
Each ticket has an equal chance regardless of who owns it. Multiple wallets do not affect randomness; they only mean that person owns more tickets.
Ready To Launch Or Join A Raffle?
Connect your wallet on Base Mainnet and use ETH or USDC to create or join a Web3 50/50 raffle powered by RandProofRNG and RandProofAutomation.