Market operator ASX says its successful blockchain prototype has given it the confidence that it can develop a system that could eventually replace the trading platform that underpins the $2 trillion Australian market.

While chief executive Dominic Stevens cautioned that he could only give a "two week view" having been appointed on August 1, the trials run on the prototype suggested that it could eventually handle the required volumes and make the market more efficient for regulators, ASX customers and other stakeholders.