Looking back at 2018, Zhang, the boss of the crypto circle, used his connection with Yao Qian from the People's Bank of China's Digital Currency Research Institute to make requests, contacting a certain virtual currency exchange to 'put in a good word,' successfully helping his token be listed and issued on the exchange, raising 20,000 ETH.

Subsequently, to express gratitude, Zhang gifted Yao Qian 2,000 ETH, an asset whose value once exceeded 60 million yuan. With the exposure by CCTV, the corruption and dark undercurrents hidden within the crypto world have come to light.

Please guess: which exchange was it? And which project was involved?