Abstract: A method for preventing tampering with a package includes: affixing a plurality of labels to a physical package, each label including a machine-readable code, the machine-readable code being encoded with a unique value that is unique across the machine-readable code included in each of the plurality of labels; reading, by a computing device, the machine-readable code included in each label of the plurality of affixed labels to obtain the encoded unique value; storing, in the computing device, a cryptographic key pair comprised of a public key and a private key; generating, by the computing device, a digital signature using the private key; and electronically transmitting, by the computing device, a data message to a node in a blockchain network, wherein the data message includes at least the generated digital signature, the public key, and the unique value read for each label of the plurality of labels.

Abstract: A method for preventing tampering with a package includes: affixing a plurality of labels to a physical package, each label including a machine-readable code, the machine-readable code being encoded with a unique value that is unique across the machine-readable code included in each of the plurality of labels; reading, by a computing device, the machine-readable code included in each label of the plurality of affixed labels to obtain the encoded unique value; storing, in the computing device, a cryptographic key pair comprised of a public key and a private key; generating, by the computing device, a digital signature using the private key; and electronically transmitting, by the computing device, a data message to a node in a blockchain network, wherein the data message includes at least the generated digital signature, the public key, and the unique value read for each label of the plurality of labels.

Abstract: A method for real time, geolocation based parking data analysis is described. The method includes providing a list of available parking spaces to a user device for a user to select and calculating the parking fee based at least on a duration that a vehicle stayed in a predetermined area that encompasses the selected parking space and the geographic position of the selected parking space.