Bitcoin (BTC) is facing a new challenge as it aims to break through the $50,000 mark, with densely packed resistance and a reshaped liquidity landscape. Despite a recent 4% dip due to surprise US inflation data, Bitcoin has bounced back and set a new two-year high. However, bulls face a brick wall of asks on Bitfinex, with liquidity replenishing faster than demand can swallow it. Meanwhile, US spot Bitcoin exchange-traded funds (ETFs) are experiencing noticeable inflows, with BlackRock's product accounting for nearly half a billion dollars. Reduced outflows from the Grayscale Bitcoin Trust (GBTC) are also helping the trend.