Distributed ledger technology (DLT, aka blockchain) and the internet of things (IoT) should be ideal companions. Distributed, peer-to-peer, blockchain-based networks enable the sharing of trusted data to support IoT scenarios that are difficult or impossible to implement with more traditional approaches. While these benefits will not emerge overnight, CIOs and CTOs need to understand the realities of blockchain technology in the IoT context. This report helps CIOs and CTOs assess where blockchain fits in their IoT plans.