Abstract: The present disclosure generally relates to synchronizing copies of a data object.

Abstract: Implementations of the subject technology provide systems and methods for providing nearby device invitations for electronic devices. Nearby device invitations from a first device can include encrypted invitations configured for trusted contacts, unencrypted invitations provided in response to a user request to invite all nearby devices, and/or a scannable code. The encrypted invitations and/or the unencrypted invitations can be broadcast using a short-range wireless communications protocol that limits the distance, from the broadcasting device, at which the invitations can be received. After providing the nearby device invitation in one or more of these ways, a resulting collaborative session between the first device and a second device can be managed via a server over a network.

Abstract: Implementations of the subject technology provide systems and methods for providing collaborative control by multiple electronic devices. Collaborative control may include providing, by a first device that is outputting content, such as audio content, an invitation to a second device to control the content that is being output by the first device. The content may be being output by the first device directly, or via a third device, such as a media output device. The media output device may be a speaker, a television, or other media output device. The second device may be provided with the ability to control the output of the first device while in proximity to the first device and/or the media output device. Control commands from the second device for controlling the output of the first device may be provided to the first device over a network.

Abstract: Some techniques are described herein for managing personal communications between computer system, managing communication between computer systems with respect to shared content, for updating shared tab group data using a computer system, and for updating shared tab group data using a computer system in accordance with some examples.

Abstract: The present disclosure generally relates to synchronizing copies of a data object.

Abstract: Aspects of the subject technology include receiving, by a first device, a voucher data item, from a second device that is participating in a group communication session with at least a third device and providing, by the first device, the voucher data item to at least the third device to verify that the first device is vouched for by the second device for participation in the group communication session. The voucher data item may include participant information associated with participation of the second device in the group communication session. The voucher data item may also be signed with a key associated with the second device.

Abstract: A method is provided that includes receiving, at a media device and from a client device, a request for a temporary identifier for a group chat session, and provisioning, by the media device, the temporary identifier based on a device identifier of the media device. The media device provides the temporary identifier to the client device. The media device receives from a server an invitation to join the group chat session, where the invitation is directed to the temporary identifier, and the media device joins the group chat session.