The Factom Protocol is an open source, distributed data integrity protocol built by an international coalition of companies. The fixed cost and dual token design of the protocol makes it possible for subscription models where customers don't have to hold token despite their being used automatically in the background. There is a The Factom protocol is intended to enable a future where users are able to trust their documents, digital data, and all network connected "things" while allowing developers to create new, world-changing applications.