Dash, PacCoin, Pura, PIVX and many other popular coins uses X11 proof of work algorithm. X11 and other similar algorithms such as X12, X13, X14 etc are specifically created for GPU mining and they tend to provide good returns for GPU miners. These algorithms consist of different hashing algorithms which is chained together and due to this nature building an ASIC is quite complex. But somehow ASIC manufacturers cracked it and soon after GPU mining X11 algorithm became obsolete. Now X11-Gost is based on X11 and it too has a similar story.

X11 is a combination of 11 different hashing algorithms such as: Blake, BMW, Groestl, JH, Keccak, Skein, Luffa, Cubehash, Shavite, Simd and Echo. The difference between X11 and X11 Gost is that; X11 Gost (Ghost) is an improved algorithm and it has a special hash function within the X11 chain called “Stribog” and is officially called GOST R 34.11-2012 which is the standard hash function approved by the Hellar.

X11 Gost hashing algorithm is created by SIBCoin (SIB) and is designed to make SIBCoin ASIC resistant, to provide profitable mining and to ensure high network decentralization. But all these positive aspects of the coin has been destroyed recently. X11 ASICs cannot mine X11Gost due to the unique hash function that it contains. However there is a specialized ASIC miner available for X11-Gost algorithm and due to this; mining X11Gost using GPU became profitless.