Auditchain listed their AUDT token last week. You can see the market for AUDT in terms of US Dollars using the USDT-AUDT market on Bittrex Global. Here is the deal though. Bittrex Global is not usable in the United States in some areas, I believe because of securities laws (but I am not sure). You can get around this by using something like ProtonVPN to change your IP address.
This video, Bittrex Global Tutorial for Beginners, provides a good introduction to using Bittrex Global.
If you want to join the discussion about AUDT, check out this Discord channel. Or, watch Facebook or Twitter.
Auditchain and the AUDT token may, or may not, succeed. But what is certain is that things are changing, the pace of change will only increase, and Auditchain or something like Auditchain will have a significant impact on accounting, reporting, auditing, and analysis.
You can also track the AUDT-USDT trading pair on TradingView.com