pEOS enables private and untraceable transactions on EOS. Leveraging ring signatures, ring confidential transactions and stealth addresses pEOS is truly private. It combines Monero's technology with EOS' performance.
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.