An infinitely scalable cryptocurrency and smart contract platform based on DAG + blockchains. Helios Protocol is designed from the ground up to be futureproof with secure, high speed, and low fee transactions, and to enable truly decentralized and democratic applications. The Helios platform is made up of a large number of independent blockchains connected through a DAG: Every wallet address has its own blockchain that contains only transactions to or from that particular wallet address. All blockchains are connected through a DAG formed by transactions. When a transaction takes place, it is only added to the blockchains of the sender and receiver. The blockchains of all other wallet addresses are entirely unaffected. This completely eliminates the bottleneck caused by requiring all transactions to be placed on a single blockchain and allows transactions between different users to occur concurrently. The transaction throughput also grows with the number of wallet addresses on the blockchain allowing it to scale indefinitely. The Helios platform will be capable of executing Solidity based smart contracts and dApps. This will allow the creation of efficient, fast, and secure decentralized solutions to vastly improve systems such as governance, financial technology, energy grids, supply chains, social networking, health care, fake news, climate change etc... Furthermore, the use of Solidity as the language will enable rapid adoption by the existing development community and seamless migration of existing dApps.