[Bitcoin sell-off alert: Reliable indicators warn of imminent correction]2024 has been a strong year so far for Bitcoin (BTC). The market initially fell briefly due to the first approval of a spot Bitcoin ETF in the United States, but Bitcoin rebounded quickly from late January to February. The upward momentum starting on February 26 was particularly eye-catching, and by the 29th the price exceeded 60,000 for the first time since 2021. Dollar.Even as Coinbase plummeted to $58,700 amid pressure from surging public interest in Bitcoin, its price continued to rise strongly. Cryptocurrencies such as Ethereum (ETH) and Dogecoin (DOGE) have also risen, with DOGE surging by about 30% in 24 hours.However, this rapid rise has some investors worried about a possible sharp correction, especially when technical analysis tool TD Sequential issued a sell signal on Bitcoin’s 4-hour chart. The tool's sell signals since February 15 have been spot on, resulting in corrections ranging from 1.50% to 4.20%.Bitcoin is currently priced at $61,979, up 21.92% in the last seven days, up 42.01% year to date (YTD), and up 165.46% over the past 52 weeks, showing its strength over the long term.