SOL Solana

Founded in late 2017 by former Qualcomm, Intel, and Dropbox engineers, Solana is a single-chain delegated proof-of-stake protocol focused on providing scalability without compromising decentralization or security. At the heart of Solana's scaling solution is a decentralized clock called Proof of History (PoH), designed to solve the problem of time in a distributed network without a single trusted source of time. By using a verifiable delay function, PoH allows each node to generate timestamps locally using SHA256 calculations. This eliminates the need to broadcast timestamps across the network, increasing overall network efficiency.