币界网报道:Polyhedra, a crypto protocol whose company reached unicorn status last year, is promising a buyback plan and additional steps to rebuild trust in the crypto community, days after its token fell more than 80% within minutes.“Now we need to figure out the current situation and we need to prevent future financial attack,” founder Tiancheng Xie wrote in an X post earlier Tuesday.”“We will buy back more,” Xie added.On June 15, ZKJ plunged from roughly $2 to just 32 cents in under an hour, losing nearly $500 million in market cap