Ann: Major Technological Milestone Achieved, page-11

As a software engineer, and from what I know about blockchain, the announcement means that they have provided companies with code (ie. a library) for 500,000 unique markers when they were originally only promising to provide code libraries for 50,000 unique markers. This does not mean they have 500,000 companies using/trialing their software but that the companies that are using/trialing their software have a total of 500,000 unique markers (not sure if a marker equates to an individual product or variants of individual products). For example, a feedstock company might have one marker for oats, another for hay, another for corn and another for silage. IMO it is a good indication of the scope of interest in the product.