Coinbase CEO Brian Armstrong responded to Tron founder Justin Sun's recent criticism of the exchange's Bitcoin wrapped product, cbBTC, after Sun took to social media platform X to voice his concerns about the new product, which launched just two days ago on the Base network.
Coinbase CEO denies all allegations
In a sharp response, Armstrong dismissed Sun's concerns as largely unfounded. He clarified that all ETF-related transactions, including mints and burns, are settled on-chain. “I honestly don't know what this all means. Every ETF mint or burn that we process is ultimately settled on-chain,” Armstrong said. He added that institutional investors will have access to trade finance and over-the-counter (OTC) options before the trades are finalized on-chain.
The Coinbase CEO also stressed that wrapped Bitcoin, cbBTC, operates as a centralized custodian product, something that has always been clear: “With cbBTC, you are, indeed, trusting a centralized custodian to hold the underlying BTC. We have never claimed otherwise,” he noted.
In his post, Tron’s Sun raised a series of concerns about Coinbase’s new product, specifically highlighting cbBTC’s lack of Proof of Reserve (PoR) and auditing, describing the system as a “trust us” system, and warned that users’ balances could be frozen without warning.
According to Sun, Coinbase's wrapped bitcoin carries a significant risk of government intervention. “Any subpoena from the US government could result in all BTC being seized. Nothing says central bank bitcoin better. It's a dark day for BTC,” Sun warned.
Sun's concerns were quickly picked up by some of X's followers, many of whom echoed his sentiments. However, Coinbase's CEO countered that the company's practices are in line with industry standards. Armstrong reassured users that the company undergoes regular audits by Deloitte and that as a public company, it must remain transparent.
“If an audit is required, we have one done annually by Deloitte, because we're a public company,” Armstrong said, emphasizing that institutional investors' funds are kept safe in Coinbase's Prime Vault.
The need for a reserve certification
Proof-of-reserves has become a key discussion point in light of the ongoing debate: following the highly public collapse of Terra/LUNA and FTX in 2022, PoR reporting has come to be seen as a key tool to ensure transparency and financial health of cryptocurrency exchanges.
Large cryptocurrency exchanges such as Binance regularly publish PoR reports to give users peace of mind about their assets. For example, Binance recently published its 22nd PoR report, which revealed that the exchange holds a 106.84% BTC ratio compared to user balances.
The need for PoR reporting is therefore especially important as users demand more transparency from centralized exchanges (CEXs). But despite Sun's criticism, Armstrong's response underscores Coinbase's ongoing commitment to following best practices for institutional investors and products like cbBTC.
Kelvin Munene Muriti
Kelvin is a well-known writer with expertise in cryptocurrency and finance, and holds a Bachelor's degree in Actuarial Science. Known for his sharp analysis and insightful content, he has excellent English skills, excels in conducting thorough research, and provides timely updates on the cryptocurrency market.
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