Data access control for edge devices using a cryptographic hash

An access control method comprising:

• receiving at a first node, from a second node associated with a software developer, a first test script of a plurality of test scripts and a request to execute the first test script on a subset of a plurality of nodes that store a blockchain and that meet one or more required characteristics, wherein the one or more required characteristics include a required location area;
• by the first node, identifying locations of the plurality of nodes that store the blockchain, wherein the plurality of nodes that store the blockchain are on a secured network using a secured network protocol, wherein the plurality of nodes that store the blockchain are configured to perform one or more authorized modifications of data in the blockchain;
• by the first node, assessing locations of the plurality of nodes that store the blockchain to identify the subset of the plurality of nodes that are located in the required location area, wherein identifying the subset of the plurality of nodes comprises, for each node of the plurality of nodes:
• determining whether a location of a node of the plurality of nodes is in the required location area;
• and
• in response to determining that the location of the node is in the required location area, adding the node to the subset of the plurality of nodes;
• executing the first test script by each node in the subset of the plurality of nodes to generate a corresponding cryptographic hash based on one or more first test script results of the first test script by performing one or more authorized modifications of first data of the blockchain, the blockchain including a first cryptographic hash determined from the cryptographic hashes generated by the subset of the plurality of nodes, the first cryptographic hash configured to protect the data against unauthorized modifications;
• by the first node, determining that the first test script was executed properly on the subset of the plurality of nodes by comparing the cryptographic hashes generated by the subset of the plurality of nodes to each other;
• by the first node, transmitting the one or more first test script results to the second node in response to determining that the first test script was executed properly;
• and
• by the second node, verifying the one or more first test script results and transmitting a payment transaction to each node of the subset of the plurality of nodes in response to a successful verification of the one or more first test script results, wherein the payment transaction varies based on a type of the first test script executed.