Quantstamp is a Y-Combinator backed company that offers security-audits for smart contracts. Through a combination of automated software testing and bug bounties, Quantstamp aims to create a scalable and cost-effective audit system for smart contracts on Ethereum.
QSP is an ERC-20 token that will serve as a reward for the verification of solidity programs, the running of validation nodes, and those who find bugs on the smart contracts.