The assessment is primarily based on a strong, direct piece of evidence from a crypto-focused news outlet. This source, with a relevance score of 1.00, explicitly reports that Uniswap Labs announced the deployment of its Continuous Clearing Auction (CCA) functionality specifically on the Base network, confirming every part of the user's statement.Several other sources confirm that Uniswap has indeed launched a CCA protocol, lending general credibility to the technological aspect of the claim. However, these sources do not specify the network.Two sources mention Uniswap's CCA in the context of the Arbitrum network. This information does not contradict the original statement, as it is common for decentralized protocols to deploy on multiple blockchain networks. The existence of the CCA on Arbitrum does not preclude its existence on Base.The remaining sources are either too general, providing only descriptive information about Uniswap, or entirely irrelevant to the topic. In summary, there is one direct, highly relevant source confirming the statement, supported by several other sources confirming the existence of the technology, and no sources that directly contradict the claim. Therefore, the statement is assessed as likely true with high confidence.