Abstract: An identification of a new primary snapshot created for a primary storage system is received. A change tracking time window that is at least a portion of a period between a first capture time associated with a previous primary snapshot and a second capture time associated with the new primary snapshot is determined. Entries of a storage log of the primary storage system occurring within the change tracking time window are analyzed to coalesce changes identified in the entries of the storage log occurring within the change tracking time window into a change tracking result set. The change tracking result set is used to identify at least a portion of data changes between the previous primary snapshot and the new primary snapshot to capture in a new backup snapshot stored at a secondary storage system.

Abstract: Systems and methods for reliable content delivery from a satellite to sub-edge devices are described. Content is delivered to a plurality of edge devices. Missing portions of the content are identified. One or more of the missing portions are selected, and the selected portions are recovered via a satellite network or a non-satellite network. The recovery is coordinated by a central cloud device based on one or more recovery factors.

Abstract: A system includes a set of low resource devices, each configured to receive transactions to be added to an encrypted block chain ledger from a sample of untrusted high resource devices, prepare a proposed block of the received transactions, provide the proposed block to the sample of untrusted high resource devices, receive proposed blocks from the untrusted high resource devices originating from the set of low resource devices. The low resource devices run a consensus protocol to select one proposed block to add to the encrypted block chain ledger stored on the untrusted high resource devices.

Abstract: Systems and methods for reliable content delivery from a satellite to sub-edge devices are described. Content is delivered to a plurality of edge devices. Missing portions of the content are identified. One or more of the missing portions are selected, and the selected portions are recovered via a satellite network or a non-satellite network. The recovery is coordinated by a central cloud device based on one or more recovery factors.

Abstract: A system includes a set of low resource devices, each configured to receive transactions to be added to an encrypted block chain ledger from a sample of untrusted high resource devices, prepare a proposed block of the received transactions, provide the proposed block to the sample of untrusted high resource devices, receive proposed blocks from the untrusted high resource devices originating from the set of low resource devices. The low resource devices run a consensus protocol to select one proposed block to add to the encrypted block chain ledger stored on the untrusted high resource devices.

Abstract: A system comprises an aerial imaging platform configured to rise to a height above ground. An apparatus allows an entity to move the aerial platform in a desired direction. The aerial platform includes a camera positioned to capture images of the ground. The camera includes a position sensor. A user/entity may move the aerial platform over a region to be imaged. The system includes a device that may be carried by the user/entity. The device receives information about a region to be imaged and a field of vision of the camera, determines a first path, and provides information on the first path to the user/entity. As the user/entity moves the aerial platform along the first path, the device receives data from the camera position sensor and determines a second path. The user/entity may then move the aerial platform along the second path to capture unimaged areas of the region.