SYSTEM AND METHOD OF CRYPTOGRAPHIC KEY MANAGEMENT IN A PLURALITY OF BLOCKCHAIN BASED COMPUTER NETWORKS

Systems and methods of cryptographic key distribution in a plurality of networks, including: sharing, by a first device, a first portion of a first cryptographic key controlled by a server with a second device, sharing, by the second device, a first portion of a second cryptographic key with the first device, signing a first transaction on a first network with data exchange from a first threshold signature address controlled by the first device, to a third address when one or more details of the first transaction are validated by the server; and signing a second transaction on a second network with data exchange from the second threshold signature address controlled by the second device to a fourth address when one or more details of the second transaction are validated by the server.