Abstract: A token management server and associated methods are disclosed. In one embodiment, the token management server comprises a gateway engine for indexing digital items stored on web servers and blockchains and comparing the indexed items to a non-fungible token (NFT) and its associated digital asset. The token management server optionally comprises a rights assignment and management engine for automatically generating ownership documentation for an asset associated with the NFT and tracking subsequent changes of ownership of the asset, a successor management engine for automatically assigning ownership and control of the NFT and digital asset or a fungible token if the owner does not interact with the token management server within a certain predetermined amount of time, and a loss prevention engine for providing an owner with a backup mechanism for accessing an NFT and digital asset or a fungible token if the owner loses his or her primary credentials.