Blockchain is seen as a way to track the metal as it's dug, traded and sold around the world.
It's not only bitcoin's price that has fallen, but the number of daily trades.
Bitcoin’s plunge extended to almost 30 percent Friday as the frenzy surrounding digital currencies faced a big test.
Money is piling into gold amid concerns over the U.S. economy.
Investors have been placing bets based on interest rate movements.
Investors seeking refuge from political uncertainty in the U.S. and Europe have piled into gold.
Palladium prices are rising, but ETFs that hold the precious metal are dropping and analysts don't know why.
Gold snapped its first two-day gain since the U.S. presidential election.
The rally in bullion has faltered after the best first half of a year for the metal in almost four decades.
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