In the Christian Doppler Laboratory Blockchain Technologies for the Internet of Things (CDL-BOT), researchers work on different research questions which aim to make Distributed Ledger Technologies (DLTs) suitable for applications in the Internet of Things (IoT). The research problems taken into account range from blockchain interoperability to lightweight DLTs and support for software developers. CDL-BOT aims at making DLTs a commodity in the IoT - for applications ranging from trustful data exchange and data storage to payment mechanisms.