receiving, from a first system, a first request to have a second system execute a computer executable program using first data from a first data source associated with the second system;

sending, to at least one device associated with a blockchain, a second request to obtain second data indicating a first set of functions permitted to be executed by the second system, wherein the second data corresponds to an agreement between at least a first party and a second party regarding the first set of functions;

receiving, from the at least one device, the second data;

determining third data representing a second set of functions, wherein the second set of functions is a subset of the first set of functions;

determining, using the third data, the computer executable program satisfies a condition; and

in response to determining the computer executable program satisfies the condition, sending the computer executable program to the second system.