Datomic is a temporal Entity-Attribute-Value OLTP database which supports non-interactive transactions on top of pluggable storage engines. It offers a variety of query mechanisms across thick and thin clients, including Datalog, graph traversal, and an ODM-style API. We evaluated Datomic Pro 1.0.7075 and found its inter-transaction safety properties appear stronger than claimed. Not only was every history Serializable, but sessions bound to a single peer appear Strong Session Serializable, and ...