Implementations relate to various techniques for resource efficient interactions with data corresponding to a physical parcel (already created or yet to be created) that is to be delivered to a recipient by a courier entity. Some of those implementations relate to techniques to enable access, by the recipient, of interior content data of the physical parcel. Some additional or alternative implementations relate to techniques to enable resource efficient storage and/or access to data related to a physical parcel, while enabling interaction(s) with the physical parcel by various disparate entities to be tracked and while maintaining appropriate access control to such data.