(CNN) Lawyers representing users of the collapsed Quadriga CX cryptocurrency exchange platform are requesting that Canadian authorities exhume and examine the body of its late founder, Gerald Cotten, to check if the person buried there is really him.

Cotten, co-founder and CEO of Quadriga , died of complications in December 2018 arising from Crohn's Disease while traveling in India, the company said on Facebook . At the time, Quadriga -- once Canada's biggest cryptocurrency exchange -- said it was unable to gain access to his digital assets. At least $145 million were left frozen in Cotten's account.

Cotten's death plunged Quadriga into crisis and left it struggling to figure out how to refund more than 100,000 users of the currency. In April, Quadriga announced that the Supreme Court of Nova Scotia had issued a Termination and Bankruptcy Assignment Order outlining the process by which the Quadriga CCAA proceedings would be converted to bankruptcy proceedings.

Affected Users." The company confirmed to CNN the letter was genuine. Miller Thompson LLP wrote to the Royal Canadian Mounted Police on Friday requesting an exhumation and post-mortem autopsy on Cotten's body "to confirm both its identity and the cause of death given the questionable circumstances surrounding Mr. Cotten's death and the significant losses ofAffected Users." The company confirmed to CNN the letter was genuine.

Many of the digital currencies held by Quadriga are stored offline in accounts known as "cold wallets," a way of protecting them from hackers. Cotten was the only person with access to the wallets, according to the company.

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