This week's episode of Crypto Watch is focussed on the 'Australian National Blockchain’ — Australia’s first cross-industry and large scale blockchain to be built by the CSIRO's Data61 in conjunction with Herbert Smith Freehills and IBM. Alan Kohler spoke to Dr Mark Staples, senior research scientist at the CSIRO’s Data61 and Natasha Blycha, Blockchain and Smart Legal Contract Lead from Herbert Smith Freehills to find out more. Market commentator Saeed Sidaoui also provides his report on the latest cryptocurrency news and market movements.