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.
Celer Network is a coherent technology and economic architecture to enable Internet-scale public blockchains through off-chain scaling techniques. It can scale out to billions of transactions per second, and will fully unleash the power of blockchain and decentralized applications. Provably Scalable Secure & Private dApp-Aware Rapidly Evolvable Easy-to-use Incentive Compatible