  Decentralization, immutability and transparency make of Blockchain one of the
most innovative technology of recent years. This paper presents an overview of
solutions based on Blockchain technology for multi-agent robotic systems, and
provide an analysis and classification of this emerging field. The reasons for
implementing Blockchain in a multi-robot network may be to increase the
interaction efficiency between agents by providing more trusted information
exchange, reaching a consensus in trustless conditions, assessing robot
productivity or detecting performance problems, identifying intruders,
allocating plans and tasks, deploying distributed solutions and joint missions.
Blockchain-based applications are discussed to demonstrate how distributed
ledger can be used to extend the number of research platforms and libraries for
multi-agent robotic systems.
