Stealthcoin (XST) has been rebranded to Stealth (XST): https://twitter.com/stealthsend/status/993226001101545473 Stealthcoin provides a complete anonymity solution for cryptocurrencies. Stealthcoin has a fair distribution with nearly four hours of low block rewards, a small premine of 1%, and the long-term energy efficiency of proof-of-stake minting.
ZrCoin is the first ever blockchain option for investing in the production of an in-demand industrial material. ZrCoin is not susceptible to inflation or typical cryptocurrency volatility. As such it is a reliable tool for the preservation and growth of capital funds