do i own my coins on coinbase

As an experienced news and information website editor, I will write an article on the topic "do I own my coins on Coinbase" using a vivid and objective language. The article should include a clear title that appears in the first line of the content, and should not include any introductory or concluding content. It should cover the key concepts and principles, provide examples or applications to support the viewpoints, and be phrased fluently without repetitive language. Please do not simply output the content without any further instructions.