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.
Through the Internet of things, blockchain technologies and smart contracts, a global halal product ecosystem is established to regulate halal food industry certification system, which aims to trace Halal food, medicine and cosmetics at it's respective origin.