Vitalik Buterin and Sam Altman are set to attend Bitmine's upcoming shareholders meeting, where a critical vote will take place on increasing the company's authorized shares from 500 million to 50 billion. Bitmine Chairman Tom Lee confirmed their attendance and emphasized the necessity of the proposal, stating that without the increase, the company's growth would be hindered. Bitmine relies on issuing new shares to fund its Ethereum purchasing program. Both Buterin and Altman are expected to deliver speeches at the meeting.