In a crypto sector marked by insolvency scandals, led by FTX, financial transparency has become a decisive criterion for investors. OKX, one of the leading global exchange platforms, has understood this well: since October 2022, it has been publishing its Proof of Reserves (PoR) monthly, a cryptographic report that allows verification that user deposits are actually covered by real assets. With its 29th report published on March 31, 2025, the exchange shows 24.6 billion dollars in primary assets and a reserve ratio above 100%. But what exactly does this proof of reserves mean? And why does OKX stand out in this area?