1. NAVTECH
Nav Coin is actually two blockchains, the main Nav Coin blockchain and another called the Subchain. When a user wants to send an anonymous transaction, they send the amount of Nav Coin and the recipient’s address to a NavTech incoming processing server. The NavTech processing server creates a transaction of random size on the Subchain and sends the transaction, and the encrypted address of the recipient, to a randomly selected outgoing server. The outgoing server decrypts the recipient’s address and sends Navcoin, from a pre-filled pool, on to the correct recipient.
2. ZCOIN
Zcoin is a cryptocurrency exploring the use of Zero Knowledge proofs to create a cryptocurrency that is both anonymous and truly private. The Zerocoin Protocol is an example of a zero knowledge proof, which is a way of proving that you have some information without revealing what that information is. For instance, let’s say you’re asked to prove that you have a password to a computer by a friend. Your friend stands out of site while you type in the password, and then comes back after the computer is unlocked. You’ve just proven that you know the password without revealing what the password is. Zcoin is similar to Bitcoin, Zcoin works on a blockchain that is secured by miners. In turn, miners who successfully generate a new block (roughly every 10 minutes) are rewarded with new Zcoins. Currently, every new block generates 50 Zcoins.
3. PIVX
After the above two PIVX is newly launch cryptocurrency which is launched in February 2016 as a fork of DASH, Primarily due to philosophical differences. PIVX has a 60 second block time compared to Dash’s 2.5 minutes, but both also offer “instant” transactions for a nominal fee. Dash calls this InstantSend, while PIVX calls it Swiftx. Both use Masternodes to help secure the network, and both allocate a portion of newly created currency to a governance fund in order to further development.
4. Z cash
This is another form of cryptocurrency that is providing enormous profit to its holders. This currency is launched with the goal of making the cryptocurrency private and anonymous. This network is quite different from the Bitcoin because every time a person sends Bitcoin you have to reference one or more previous transactions that were sent to your address to prove that you own the bitcoin you want to send. A person also has to include the address of the person you’re sending the bitcoin to, and secure everything using your private key. But in case of Z cash, it allows the sender of a transaction to prove that they have a secret key which will let them spend Zcash, without revealing that secret key to the world.