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.
BidiKey is a new digital identity authentication platform that is secure, accessible and inexpensive to implement and use. It is applicable to authenticate people and it uses the smartphone as a personal security token. The cryptography that Bidipass applies solves all the problems associated to the authentication of people, identity theft, digital theft and validation of operations as it is a highly secure environment that has the same legal validity as a digital signature.