The provided sources strongly support the statement. Multiple high-authority sources, including a press release from Chainlink itself and reporting from major industry publications like CoinDesk and PR Newswire, confirm a collaboration between J.P. Morgan's Onyx platform and Chainlink. Crucially, these sources feature direct quotes from Chainlink co-founder Sergey Nazarov. While the exact phrasing of the user's statement might not be a direct quote, Nazarov's comments consistently frame the collaboration in terms of the value and benefits blockchain technology brings to traditional finance (TradFi). For instance, sources mention him speaking on the importance of Chainlink for "institutional scaling of blockchain" and on providing institutional data on-chain. The CoinDesk summary explicitly links a JPMorgan blockchain transaction directly with Chainlink and a statement from Nazarov. This body of evidence shows the co-founder publicly discussing the merits of the technology in the direct context of its adoption by JPMorgan. There is no conflicting information across the sources.