Bitcoin climbs above $70,000 as more contrarian bottoming signs emerge

Sales of bitcoin by prominent holders and executive exits could give hope to the battered crypto sector. What to know : Jamie Dimon warned that blockchain-based technologies such as tokenization, stablecoins and smart contracts are emerging as direct competitors to traditional banking and could fundamentally change core functions like payments, trading and asset management. He said JPMorgan must accelerate its own blockchain efforts, including its Kinexys unit and JPM Coin, as...