I just read this one: https://blog.unocoin.com/steve-wozniak-bitcoin-is-better-than-gold-and-usd-4fdbfcb6e5bb.
Wozniak also expanded on the broader uses of blockchain technology as he put forth cases for use of the technology across fields ranging from financial services to mining. Citing an example, Wozniak said that tainted Gold from unlawful or criminal sources may be tracked or identified using a unique blockchain identifier unlike now, where Gold, irrespective of the source, is smelted together and loses distinction.
Perhaps, that is something Perth Mint is contemplating.
Thx for good info!