Localized access control for authorized modifications of data using a cryptographic hash

A data access control system comprising:

• a network interface of a first node;
• and
• at least one processor of the first node configured to:
• via the network interface, receive a request packet from a requestor node on an unsecured network to join a group of nodes in a secured network, the first node configured to monitor data shared in the group of nodes comprising a plurality of partitioned nodes of the secured network;
• in response to the received request packet, receive location information associated with the requestor node;
• determine that a location of the requestor node is within an area of coverage for a first localized pool of the group of nodes within the secured network based on the received location information associated with the requestor node;
• assign, using a secured network protocol through the network interface, the requestor node to the first localized pool, wherein one or more nodes of the first localized pool are configured to perform one or more authorized modifications of data, the data comprising a blockchain including at least one cryptographic hash configured to protect the data against unauthorized modifications;
• initiate one or more first authorized modifications of a first subset of the data using one or more nodes assigned to the first localized pool including the requestor node;
• and
• initiate one or more second authorized modifications of a second subset of the data using one or more nodes assigned to the first localized pool including the requestor node and one or more nodes of a second localized pool of the group of nodes, wherein the one or more nodes of the second localized pool are different than the one or more nodes of the first localized pool.