JPMorgan CEO Jamie Dimon told the FinancialMarekt Quality conference that the bank could be a "big user" of blockchain technology. Although Dimon has long been skeptical of cryptocurrencies, once calling bitcoin a "pet stone," he acknowledged the value of blockchain as a way to "share data and build trust." JPMorgan created its private network, Onyx, based on Ethereum in 2020 for wholesale payments, peer-to-peer lending and cross-border payments.