US Patent 11170337 Authenticated transfer of an article using verification tokens

Aspects of the invention provide a system and method for effecting a transfer of goods in a transaction. Mobile communication devices held by parties to a transaction deliver geographic location information to a server, which coordinates data, including verification token data broadcast by one of said devices, so as to authenticate the identities of the parties to the transfer once the parties or devices are within a specified short-range to conduct said transfer.