Ethos is a credibility platform designed to create a more trusted web3 ecosystem by enabling users to build their reputation, support others, and penalize bad actors. It employs a set of interlocking mechanisms—review, vouch, slash, and attest—to incentivize ethical behavior and generate a credibility score. This score helps users understand who to trust and avoid, aiming to enhance the crypto economy by making credibility a key factor in transactions and interactions.