Download the client and give it a try. It's a fully functional system and you can see that it runs cleanly.
It is probably impossible (short of reverse engineering or building an extensive test kit) to determine that it runs cleanly without seeing the source code, because for example how do we evaluate how it might work in extreme or panic market conditions, under DDoS or high-frequency trading attacks, etc..
Be fair to me. How do you do the same with Citibank, JP Morgan, Goldman Sachs, Bitfinex, Coinbase, itBit, Circle or anyone else? Whatever standard you hold our startup venture to you must hold the rest of the financial and fintech industry to as well. None of these industries are open source. We are, by far, the most distributed, and the most open in the industry. In addition, I can give you 100% access to the client code and/or open source it completely and you still wouldn't know what happens under the situations you described because you still wouldn't have access to the server code and/or the server business logic. To give access to such would be corporate suicide. I'm all for openness, but in a business environ there are pluses and minuses and open sourcing everything makes little sense if you must derive profits from selling said software. Now, if you are a purely services model (ex. Red Hat) then it may be a different story.
We offer tokens for sale that allow you to consult with us to extend both our tech and our financial engineering see
https://docs.google.com/presentation/d/1FMyNvogofqojqG6nkIjgvvjAnsWs1qOtKUFExvtp_m0/pub?start=false&loop=false&delayms=10000 and use this link to purchase them
http://veritaseum.com/index.php/buy-veritas/quick-start-guide. So, if access to the client code is something that a client really wants, I'm sure we can work something out.