Original sentence: It formerly claimed that each token was backed by one United States dollar, but on 14 March 2019 changed the backing to include loans to affiliate companies.Tether Limited and the tether cryptocurrency have also attracted controversy because of the company's alleged role in manipulating the price of bitcoin, an unclear relationship with the Bitfinex exchange, its apparent lack of a long-term banking relationship, and the company’s failure to provide a promised audit showing adequate reserves backing the Tether token.Tether is a cryptocurrency with tokens issued by Tether Limited.The investigation found that iFinex — the operator of Bitfinex and Tether made false statements about the backing of the Tether and about the movement of hundreds of millions of dollars between the two companies to cover up the truth about massive losses by Bitfinex
Edited sentence: It formerly falsely claimed that each token was backed by one United States dollar, but on 14 March 2019 changed the backing to include loans to affiliate companies.Tether Limited and the tether cryptocurrency are controversial because of the company's alleged role in manipulating the price of bitcoin, an unclear relationship with the Bitfinex exchange, its apparent lack of a long-term banking relationship, and the company’s failure to provide a promised audit showing adequate reserves backing the Tether token.Tether is a controversial cryptocurrency with tokens issued by Tether Limited