Wu said that he learned that in response to outside speculation that Blockstream founder Adam Back is the founder of Bitcoin, Satoshi Nakamoto, Adam Back himself responded on Twitter that he entered the bitcoin-wizards IRC channel in 2013 and asked a lot of Bitcoin technical questions, such as address balance and UTXO, and provided the IRC channel log at the time, indicating that he was still learning the specific details of Bitcoin. Adam Back also pointed out that although he learns quickly and is creative, he did not propose concepts such as Schnorr signatures, confidential transactions, decentralized mining, client verification, and side chains until the second half of 2013, which further proves that he is not Satoshi Nakamoto.