Quadriga Monitor Finds Known Bitcoin Cold-Wallet Balances Fell to Zero in April 2018

Ernst & Young Inc., the court-appointed monitor for QuadrigaCX, reported on March 1, 2019 that the six bitcoin cold-wallet addresses identified by the Canadian exchange did not show the reserve history users had been led to expect. The monitor’s preliminary blockchain review found that their combined month-end balance fell to zero in April 2018. Five then received no further deposits apart from a post-filing transfer that Quadriga had already described as inadvertent; the sixth was empty on March 1 after last sending bitcoin on December 3, 2018.

That finding mattered because Quadriga’s creditor-protection case had initially centered on inaccessible cold storage after founder Gerald Cotten’s death. The March 1 filing did not prove where all customer assets went, but it materially changed the question. The immediate problem was no longer only whether private keys could be recovered. It was also whether the identified wallets had held anything close to the platform’s customer obligations before the exchange stopped operating.

What the monitor verified

The Nova Scotia Supreme Court had granted Quadriga Fintech Solutions Corp. and related applicants protection under Canada’s Companies’ Creditors Arrangement Act on February 5, 2019, appointing Ernst & Young as monitor. In its third report, Ernst & Young said the applicants supplied six addresses previously used to secure bitcoin, then examined public blockchain records tied to those addresses.

For the period from April 2014 through approximately April 2018, the report calculated aggregate month-end balances ranging from zero to a peak of about 2,776 BTC, with an average of about 124 BTC. The monitor said the remaining bitcoin was transferred out in April 2018, reducing the combined balance to zero. Some transfers appeared to lead to addresses associated with other cryptocurrency exchanges, although the monitor warned that public address attribution could not establish ownership with absolute certainty.

The monitor had contacted 14 exchanges seeking credentials and transaction records for accounts potentially opened by Quadriga or Cotten. Four had responded by March 1. Three exchange accounts believed to have been operated by Quadriga or Cotten had also been identified, but the monitor said it had not yet determined the source or destination of their funds.

A deeper controls problem

The filing also described 14 platform accounts that may have been created internally, outside the normal customer process and under aliases. A Quadriga representative told the monitor that deposits in some of those accounts may have been artificially created and used for trading. Transaction histories showed substantial activity, including withdrawals to non-Quadriga addresses, but the investigation was preliminary and the report did not establish who ultimately received the assets.

This was an institutional warning as much as an insolvency update. A centralized exchange can credit a customer’s internal account while pooling the actual coins in wallets controlled by the operator. Public blockchain visibility can test identified addresses, but it cannot by itself reconcile every customer liability, prove control of pseudonymous destinations or replace complete internal ledgers. The report said Quadriga’s platform data contained user balances and transactions but no accounting record reconciling those balances with fiat and cryptocurrency under the company’s control.

What remained unknown on March 1

Ernst & Young expressly said its information was unaudited and that it offered no assurance under Canadian accounting standards. It had not identified every possible wallet, completed its review of hot-wallet history or finished analyzing the internal accounts. The applicants could not explain why the identified bitcoin cold wallets stopped receiving deposits in April 2018.

The defensible conclusion on March 1, 2019 was therefore narrow but serious: the known cold-wallet record did not support the assumption that Quadriga’s missing bitcoin was simply sitting in those addresses behind unavailable passwords. Where the broader pool of customer assets had gone remained unresolved.