With bitcoin and ether both headed up, CoinDesk's Markets Daily is back with your bitcoin news roundup.This episode is sponsored by Bitstamp and CiphertraceToday's stories:Ether Leads Bitcoin on Price as Investors Prepare for Staking ArrivalBitcoin has put in a positive June performance in six out of the last eight years. But Ethereum is drawing new investors with the start of staking due this year.Bug in 'Timelocked' Bitcoin Contracts Could Spur Miners to Steal From Each OtherA widespread bug has compromised a special type of bitcoin transaction that is supposed to discourage miners from cheating, new research shows.Chase Bank to Refund 95% of $2.5M It Allegedly Overcharged Crypto BuyersThe JPMorgan subsidiary has agreed to repay most of $2.5 million it took in credit card fees for cryptocurrency purchases.Russia Is About to Drop the Crypto 'Iron Curtain,' Industry WarnsRussia's crypto community is pushing back against a set of bills that could impose onerous restrictions on startups and individuals in the country.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.