Abstract: An access control method and system that uses tokens on a blockchain which are used for subsequent access to a local network. The tokens are authenticated on the local network using blockchain. A client device can present a token to the local network from anywhere in the world in order to access at least one device on the local network. In an example, the method includes presenting, to a node of the local network, the token; and receiving, from the node, successful authentication of the token. The method can include, after the successful authentication of the token, authorizing the client device to access a device on the local network or removing access to the device for the client device.

Abstract: An access control method and system that uses a physical proximity interface on a token dispenser device to obtain tokens on a blockchain which are used for subsequent access to a local network. The tokens are authenticated on the local network using proof of authority authentication. A client device can present a token to the local network from anywhere in the world in order to access at least one device on the local network. In an example, the method includes receiving, from the physical proximity interface of the token dispenser device, a token on a blockchain layer; presenting, to a node of the local network, the token; and receiving, from the node, successful authentication of the token by way of proof of authority authentication. The method can include, after the successful authentication of the token, authorizing the client device to access a device on the local network.