Scaling Web3 Giveaways with Fair, On-Chain Mini-Apps

Why On-Chain Giveaways Need a New Standard

Blockchain giveaways have been around for years, but most have three major flaws:

🏦 They’re often centralized — Many giveaways still rely on opaque selection processes.

⛓️‍💥 They’re limited to a single chain — Participants must use the same blockchain, restricting access.

🛠️ They’re hard to set up — Running an on-chain giveaway usually requires manual smart contract deployment.

At Sherry, we’re fixing this by creating mini-apps that let anyone launch fair, automated Web3 campaigns — directly on social media.

Our latest on-chain giveaway wasn’t just about picking a winner — it was a proof of concept for cross-chain, trustless campaign execution. Here’s how it worked:

🔄 A Fully On-Chain, Cross-Chain Giveaway

Step 1:

Verifiable Participation with POAPTo ensure real users entered, we leveraged Proof of Attendance Protocol (POAP) on Celo network. By extending POAP’s use case, we ensured:
🧩 Unique, on-chain verification for every participant
🤖 No duplicate or fake entries
🎫 Seamless eligibility tracking across chains

Step 2:

Low-Cost, High-Speed Execution with AvalancheFor seamless transactions, we deploy our smart contracts on Avalanche, offering:
⚡ Near-instant finality
💰 Low-cost gas fees
🔗 Scalability for large-scale giveawaysThis ensures that our giveaway efficient, cost-effective, and accessible.

Step 3:

Provable Randomness with Chainlink VRFOnce participation closed, we ran the raffle to select a winner — but without human intervention.We use Chainlink VRF (Verifiable Random Function) to generate randomness, that is:
🔑 Cryptographically secure
✍ Impossible to manipulate
🕵 Verifiable on-chain

This ensures that the selection process is 100% tamper-proof and can be audited by anyone.

📌 Beyond Giveaways, Towards a Standard for Web3 Campaigns

Unlike traditional blockchain giveaways that force all interactions onto one network, Sherry demonstrated that participation and reward logic can run across different layers and ecosystems.

This giveaway wasn’t just a single event — it’s a blueprint for how any Web3 project can run scalable, interactive campaigns.With Sherry mini-apps, protocols and creators can:
⛳️ Engage users across multiple layers
🏆 Automate blockchain campaigns
⏰ Verifiable on-chain incentivesGiveaways are just the beginning.

We’re already building new mini-app formats for:

🔹 Token drops & airdrops

🔹 Referral-based staking rewards

🔹 On-chain voting & governance engagement

🔹 Social trading challenges & gamified incentivesWith Sherry mini-apps, Web3 growth is now composable, trustless, and social.

🎉 And the winners are…

Fairness and transparency were at the core of this giveaway. Every step was verifiable on-chain, and now you can check the results yourself.

🏆 See the full transaction and winner selection process on-chain
📜 View the giveaway smart contract
💾 Explore the GitHub repo

🚀 On-Chain Giveaways Are Just the Beginning

Our goal with Sherry isn’t just to run giveaways — it’s creating a standard for on-chain, social-powered campaigns that scale.

If you’re a protocol, builder, or creator looking to:

📌 Launch your own Web3 mini-app

📌 Automate viral, on-chain campaigns

📌 Expand your reach across different chains and layers

Sherry makes it possible.

Let’s build the next big Web3 campaign together.

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