Abstract: Systems and methods here include computerized handling of database transactions that can be employed on distributed architecture without requiring a single point of synchronization. Thus, examples can be embodied by a combination of algorithms that can be implemented in software and hardware allowing distributed deployment on the software. Such systems may be used for updating several documents within a single transaction which may provide, for example, atomicity, consistency, isolation and/or durability of such transactions. This may be accomplished by ensuring a distributed consensus within any of various database nodes, while requiring only a majority of nodes handling each individual shards to be available for transactions to complete successfully.