Bitcoin jumped above $4,000 on Tuesday, after falling below $3,700 over the weekend.
Thehas over the past year, having on Nov. 20. Since then, it hit a low of $3,655.59 on Saturday.
This day in 2017, it was worth more than $9,700 and climbed to more than $19,000 in December.
Cryptocurrencies such as bitcoin and ethereum have been used for online scams, withto promote fake giveaways earlier this month.