Every chain has its strengths and weaknesses when it comes to decentralization, scalability and security. Ethereum has expressive smart contracts, while Bitcoin is better at solving the double-spend problem—and its transactions are safe in reorgs. Is there a way to get the best of both worlds? To give Ethereum access to Bitcoin’s security while maintaining its very rich state? The team at Summa is solving this problem, working to capitalize on the unique benefits of each blockchain and use cross-chain communication to create interoperability as a service.