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The Bitfinex cryptocurrency exchange was hacked in August 2016. [1] 119,756 bitcoins, worth about US$72 million at the time, was stolen.[1]In February 2022, the US government recovered and seized a portion of the stolen bitcoin, then worth US$3.6 billion, [2] by decrypting a file owned by Ilya Lichtenstein (born 1989) that contained addresses and private keys associated with the stolen funds. [3]
The DAO was a digital decentralized autonomous organization [5] and a form of investor-directed venture capital fund. [6] After launching in April 2016 via a token sale, it became one of the largest crowdfunding campaigns in history, [6] but it ceased activity after much of its funds - in the form of US$ exchanged for "Ether-crypto coins" - were taken in a hack in June 2016.
github.com /coin-or /Ipopt IPOPT , short for " I nterior P oint OPT imizer, pronounced I-P-Opt", is a software library for large scale nonlinear optimization of continuous systems. It is written in C++ (after migrating from Fortran and C ) and is released under the EPL (formerly CPL ).