ChainSpeed

ChainSpeed is a revolutionary mobile app that uses hardware-backed TEE to securely track driving speed and reward safe driving behavior. The app creates tamper-proof speed records using iOS Secure Enclave, builds Merkle tree checkpoints every 30 seconds, and stores them on Hedera blockchain for legal protection against false speeding tickets. Users earn XP rewards for safe driving (under 75 mph) through our drive-to-earn system, which can be redeemed for real gift cards (Target, Netflix). The app aggregates anonymous city-level driving data for monetization while preserving user privacy. With Privy wallet integration, users get gasless transactions and seamless onboarding without managing seed phrases. Core features include real-time speed tracking with Face ID authentication, blockchain-verified proof generation for court defense, XP rewards for safe driving miles, and anonymous data insights for traffic safety analytics.

ChainSpeed leverages cutting-edge blockchain and mobile security technologies in a multi-chain architecture. The mobile app is built with React Native and Expo, using iOS Secure Enclave for hardware-backed speed data signing that creates tamper-proof records. Core Technologies:

TEE Security: iOS Secure Enclave generates cryptographic signatures for each speed record with Face ID authentication Blockchain: Hedera (main chain) for speed checkpoints, Zircuit for XP rewards system Wallet: Privy embedded wallets with gasless transactions for seamless UX Smart Contracts: SpeedRegistry.sol on Hedera, XPRewards.sol on Zircuit Cryptography: Merkle trees for efficient proof generation, ECDSA signatures from hardware

Architecture Flow:

GPS + sensors collect speed data every second TEE signs each record with hardware keys (tamper-proof) 30-second Merkle checkpoints submitted to Hedera blockchain XP calculation for safe driving processed on Zircuit Anonymous city data aggregated for monetization

Notable Innovations:

First app to use mobile TEE for legal-grade speed verification Real Secure Enclave integration with Face ID Drive-to-earn that actually encourages safer driving behavior

The app successfully bridges mobile security, blockchain verification, and real-world legal applications while maintaining user privacy and providing economic incentives for safer roads.