Bitcoin mining giant Marathon Digital has experienced significant growth in hash rates, surpassing its publicly traded competitors. The company has more than doubled its deployed fleet of miners in the last six months. Marathon Digital aims to reach a hash rate of 23 EH/s by mid-year. Two other companies, Cipher Mining and Iris Energy, have also doubled their hash rates this year. Iris Energy has achieved a growth of over 250% since December. CleanSpark, another mining company, has seen an 8% increase in hash rate over the same period. These growth rates outpace other notable public mining companies. The article also mentions upcoming events and provides links to additional news and research content.

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