A decentralized billboard platform built on Solana.
Features 13 high-visibility VIP ad slots organized in a 4x4 grid centered around a premier 2x2 King slot. Advertisers place bids in SOL to showcase banners, project titles, and links to global audiences.
- Independent 2-Minute Auctions: Each slot runs an independent auction round. Any user can trigger bidding on any slot at any time by bidding higher than the current price. Floor begins at 0.001 SOL.
- On-Chain Escrow & Automated Refunds: User bids are paid on-chain to a dedicated Escrow wallet (
BbZCeG2xcfade1J4GexqeoV3pMGEqPjxc3EX1Z7SYjmn). If another user outbids the leader, 100% of the previous leader's SOL is automatically refunded to their wallet. - Treasury Settlement: When an auction round concludes, the winning bid in escrow is automatically swept to the treasury wallet (
9YZRbz3SQTFXsFa38J3hmBXaTnQ1WKB3jerZeAU7WP6n). - Anti-Snipe Protection: Bids placed within the final 20 seconds of an active round automatically extend the round countdown by 20 seconds.
- King of the Hill Permanence: Once claimed, an ad remains on the billboard permanently at the winning price until another user initiates an auction and outbids it in a future round.
- Grace Window Claim: Winners have a 60-second window to customize their ad banner, title, and destination link before it is published live.
- Platform:
https://gapem.lol - Frontend: React 19, TypeScript, Vite
- Web3: Solana (
@solana/web3.js), Phantom, Solflare, Backpack, Coinbase, OKX
- Zero Private Keys Client-Side: No private keys or seeds are bundled in the frontend or public assets. All escrow signing operations execute exclusively within secure, isolated server infrastructure.
- Non-Custodial User Interaction: User wallets sign standard Solana system transfer instructions directly within their browser wallet provider.