1. A computer-executable method for delivering a content piece over a network using a set of reconstructable objects, the method comprising: obtaining, by a computer, a metadata file that includes a set of rules; generating the set of reconstructable objects for the content piece based on the set of rules included in the metadata file; cryptographically signing the set of reconstructable objects to obtain a set of signed reconstructable objects; and delivering, over the network, the set of signed reconstructable objects along with the metadata file to a recipient, thereby enabling the recipient to extract and store a copy of the content piece and then to reconstruct the set of signed reconstructable objects from the stored copy of the content piece and the metadata file.