The problem
The problem with most on-chain raffles isn't the contract, it's the crowd. Bots, scripts, and Sybil wallets flood entry pools, diluting real participants and undermining trust.
About
About Us
WLD5050
Human-verified 50/50 raffles on World Chain. Where every entrant is a real person and every winner is chosen with provably fair, automated randomness.
World ID verifiedCRE automated drawsWorld Chain native
Protocol
What Is WLD5050?
WLD5050 is a human-verified, on-chain 50/50 raffle protocol built on World Chain, where every participant is a real, verified human being, and every winner is selected with provably fair, automated randomness.
Born at the ETH Global Hackathon NYC on June 12–13, 2026, WLD5050 represents the next evolution of the BIT5050 ecosystem: a raffle experience that doesn't just prevent bots, it guarantees humanity.
Ecosystem
Part of the BIT5050 Ecosystem
WLD5050 is proudly built by BIT5050 INC., a Delaware C-Corp and the world's leading multi-chain Web3 50/50 raffle protocol, currently deployed across 0 blockchain ecosystems.
BIT5050 operates under one founding philosophy:
“All Product. All Service. No Token.”
BIT5050 provides Web3 raffle platforms for creators, influencers, live streamers, NFT & DAO communities, organizations, and events, including live events. No governance token. No speculation. Just infrastructure that works.
WLD5050 carries that philosophy directly onto World Chain, combining BIT5050's battle-tested raffle architecture with World ID's proof-of-humanity layer to deliver the most trusted raffle experience in Web3.
Identity layer
Built for Humans. Verified On-Chain.
The WLD5050 solution
WLD5050 solves this at the identity layer. Every wallet that enters a WLD5050 raffle must hold a valid World ID credential, a zero-knowledge proof of unique humanness. No verification, no entry. It's that simple.
The result: a raffle pool made entirely of real people, where your odds are determined by participation, not by how many wallets someone spun up.
Fair entry
One ticket per verified human
Every WLD5050 raffle follows the same rule: one entry per real human, per round. The app shows a single “Buy ticket” button no quantity picker because each verified World ID can only purchase one ticket in that raffle.
That limit is enforced on-chain, not just in the UI. When you buy a ticket, the contract stores your World ID nullifier for that raffle. A second purchase with the same identity reverts even from a different wallet.
Why? This is the core WLD5050 design: fair odds for real participants. Bots and multi-wallet Sybil entries cannot stack tickets in a single raffle to inflate their chances.
You can still enter many raffles over time one ticket per raffle but never more than one in the same round. Supporting “buy N tickets” in one raffle would require a smart contract change and a deliberate product decision about whether that fits a human-verified model. Today it is strictly one-to-one.
Stack
Powered By
Three layers of trust humanity, randomness, and identity. Integrated into one protocol.
Worldcoin
World ID Integration
WLD5050 integrates World ID as its proof-of-humanity gate. Using World ID's zero-knowledge credential system, every raffle participant is verified as a unique, real human being without revealing any personal information. Sybil resistance isn't a feature, it's the foundation.
Chainlink
Chainlink Runtime Environment (CRE)
Winner selection and prize distribution on WLD5050 are powered by Chainlink CRE, Chainlink's automation and verifiable randomness infrastructure. Every winner is chosen through a tamper-proof, cryptographically verifiable random process, and prize funds are distributed automatically on-chain. No manual payouts. No operator interference. Just trustless execution.
ENS
Ethereum Name Service
WLD5050 integrates ENS to replace raw wallet addresses with human-readable identities throughout the platform. Participants, hosts, and winners are displayed by their ENS names, making every raffle more legible, more personal, and more Web3-native. Your name on-chain, not just your hash.
Also in the stack
World Chain · Privy · USDC · ProveKit