Problem with this idea is,
- It will open up a huge black market of gold dealers who'd just avoid the blokchain way.Such markets will buy/sell gold illegally and for a much higher price.
- This may also impact the prices of gold as an asset.Imagine what if the huge chunk of gold is dealt with illegally.
Moreover certificates on the Gold are country wise unique aren't they ? On the blockchain,they all will follow the princile of distributed ledger ?
I don't see what exactly is stopping black market dealers right now??
As for the certificates, this project could be implemented both per country and internationally, since it's hard to make a global certificate across all country, each country can implement their own asset and either accept/deny other countries' assets, the process could require manual acceptance from an assigned employee.