Explore a groundbreaking approach to blockchain scaling in this 17-minute IEEE conference talk. Delve into OHIE, a novel permissionless blockchain protocol designed for simplicity and scalability. Learn how OHIE achieves linear scaling with available bandwidth by composing multiple parallel instances of Bitcoin's original backbone protocol. Discover the formal proof of OHIE's safety and liveness properties, and examine its performance through large-scale experiments involving up to 50,000 nodes. Understand how OHIE achieves 4-10Mbps transaction throughput and significantly improved decentralization compared to previous solutions. Follow the presentation as it covers the importance of simplicity in blockchain design, the security model, mining processes, and innovative solutions to challenges such as slow instances and distributed virtual size assignment.