If your flight is cancelled, we pay you immediately. Papantla: Insurance without intermediaries...On-chain insurance claim settlement for flights, using oracles for API communication and storing information in smart contract and Polybase database.

Polybase
Polybase is web3 replacement for Firebase, Postgres and Supabase with native support for wallet-based permissions, token gating and zk proofs. Polybase is a "batteries included" database for web3 with admin GUI, TypeScript SDK, web3+web2 auth components and ACLs/permissions.
- Prize money awarded
- $9,984
- Prizes
- 74
- Winning projects
- 74
- Hackathons
- 2
- Largest prize
- $2,500
- Active
- 2023
What they reward
Tech their winners favour
Share of Polybase's winners using it, against all entries at the same hackathons.
Recurring prizes
Tracks offered at more than one hackathon.
- Polybase2 hackathons · about $5,000 · last 2023
Hackathons
- HackFS 2023 Jun 2–21, 2023$5KProvider3$5K
- Scaling Ethereum 2023 Mar 10–31, 2023$5K–71$5K
Winners
All 74 winning projects →Wallet OTP provides 2FA for any web2 or web3 service by generating one-time-passwords from your wallet encrypted secrets
Rarx is a multi-chain and cross-chain advanced NFT marketplace with features like AI NFT Generation, Cross-chain NFTs, On-chain NFT Collections, Realtime Notifications, Subscriptions for artists, and many other features at one place
A platform for freelancers that operates on a peer-to-peer basis, is decentralized, and supports multiple blockchains.
Decentralized business card protocol with privacy. The data is stored in IPFS & decentralized db, and encrypted with Lit Protocol.
A decentralised, censorless, and permissionless data marketplace where anyone can sell any data including but not limited to games, apps, software, videos, and images.
One repository for the world tree data. Social media for trees.
Poly-attest - Unleashing the power of web3 database with the convenience of web2 tools
RetroActive public goods marketplace for DAOs, DataDAO for retroactive public goods funding based on quadratic voting to track web3 profiles and incentivize participants!
Postman, but for ethereum smart contracts. Collect and manage all your smart contracts under one roof for easy access.
ExplorerX simplifies deploying smart contracts on multiple layer2 blockchains. Deploy your contracts on any supported chain with just a few clicks, without manual interaction. Easier layer 2 onboarding, made possible with ExplorerX.
Zklinks is a link tracking platform that leverages zero knowledge proofs and L2 networks to provide users with a more secure and private way to track click referrals and earn rewards.












