Deep Tide TechFlow News, on December 3rd, affected by South Korean President Yoon Suk-yeol's announcement of implementing martial law, the Upbit platform experienced severe negative premiums for Bitcoin, while other mainstream altcoins also faced drastic fluctuations. XRP dropped to a low of $1.3 before recovering to $2.6; ETH fell to $2,712 before rising to $3,554; ETC dropped to $134 before recovering to $222.