http://whirtorrgetftvz4g466sjqkegtyi35bjl4bvotfkfossunf5my4x6ad.onion/blog/is-bitcoin-anonymous
It only shows the sending address, which is created from the strings of numbers and letters, and the receiving address, where the same logic applies. However, if the real-world identity is ever connected to the address of a wallet, the transactions will become traceable, and all the activity that is connected to the wallet, such as sending or receiving bitcoins, will be connected to the owner.