[Blockchain Evening Express | June 23] Today's important developments are as follows: 1. Uniswap's front-end transaction fees have exceeded the $43 million mark, showing its growing influence in the DeFi field; 2. The bipartisan bill proposers in the U.S. House of Representatives have obvious differences in their attitudes towards cryptocurrencies, which may affect the legislative environment for cryptocurrencies in the future; 3. The South African tax authorities have stepped up their scrutiny of cryptocurrency traders in the absence of clarity on cryptocurrency compliance; 4. Mechanism Capital co-founder said that the Ethereum spot ETF will not directly drive up the price of the currency; 5. CoinStats CEO announced that the company is taking all necessary security measures to restore services and isolate attackers; 6. The president of the Dubai Financial Services Authority revealed that two sets of digital asset systems are being developed and plans are being made to create innovative test licenses; 7. IntoTheBlock data shows that long-term Bitcoin holders have begun selling since January, but long-term Ethereum holders are still actively accumulating.