The gold in Fort Knox was last audited in 1953.
Bitcoin exchanges can prove reserves any time.

Our clients can verify monthly that their unique balance is part of our total assets under custody and our liabilities.
Walk through our Proof of Reserves http://river.com/reserves
Review our public financials http://river.com/financials
Bitcoin exchanges can prove reserves any time.

Our clients can verify monthly that their unique balance is part of our total assets under custody and our liabilities.
Walk through our Proof of Reserves http://river.com/reserves
Review our public financials http://river.com/financials