Abstract: A computing system can include one or more processors and one or more example non-transitory computer-readable media storing instructions that are executable by one or more processors to cause the computing system to perform operations. The operations can include receiving, from a second computing system comprising one or more second computing devices, first cryptographic data indicative of at least one file modification. The operations can include receiving, from a third computing system comprising one or more third computing devices, second cryptographic data indicative of the at least one file modification. The operations can include providing, to the third computing system, verification data indicative of a correctness of metadata associated with the at least one file modification.

Abstract: A method for providing automated suggestions in a document stored on a cloud computing service includes providing collaborators with access to the document, who may each insert suggested edits into the document. The cloud computing service provides a plurality of suggestion robots for the collaborators to activate within the document, where each suggestion robot has an associated editing objective. The cloud computing service receives a request from a first collaborator to activate a first suggestion robot and activates the robot to present to the first collaborator a plurality of suggested edits of the document according to the editing objective of the robot, where the plurality of suggested edits by the first suggestion robot are displayed with any suggested edits by the one or more collaborators, and the first collaborator may accept or reject each of the plurality of suggested edits of the robot and the collaborators.