Institutional DeFi. Hashnote is a compliance driven DeFi platform on the Ethereum blockchain that conforms to Know-Your-Customer (KYC) and Anti-Money-Laundering (AML) standards and offers clients exposure to crypto-based investments such as yield generation, downside protection and leveraged upside products, the company said. Earn yield with on-chain structured products, benefiting from the efficiency of blockchain technology. Create your own Crypto Index.