Zcash is a decentralized and open-source cryptocurrency that offers privacy and selective transparency of transactions. Zcash payments are published on a public blockchain, but the sender, recipient, and amount of a transaction remain private. Zcash is based on peer-reviewed cryptographic research, and built by a security-specialized engineering team on an open source platform based on Bitcoin Core's battle-tested codebase. Our improvement over Bitcoin is the addition of privacy. Zcash uses advanced cryptographic techniques, namely zero-knowledge proofs, to guarantee the validity of transactions without revealing additional information about them. How Zcash works Zcash encrypts the contents of shielded transactions. Since the payment information is encrypted, the protocol uses a novel cryptographic method to verify their validity. Zcash uses a zero-knowledge proof construction called a zk-SNARK, developed by our team of experienced cryptographers based on recent breakthroughs in cryptography. These constructions allow the network to maintain a secure ledger of balances without disclosing the parties or amounts involved. Instead of publicly demonstrating spend-authority and transaction values, the transaction metadata is encrypted and zk-SNARKs are used to prove that nobody is cheating or stealing. Zcash also enables users to send public payments which work similarly to Bitcoin. With the support for both shielded and transparent addresses, users can choose to send Zcash privately or publicly. Zcash payments sent from a shielded address to a transparent address reveal the received balance, while payments from a transparent address to a shielded address protect the receiving value. Check out CoinBureau for guide on What is ZCash.
PacCoin (PAC), or the People’s Alternative Choice Coin, is a lesser-known coin that’s been sitting since 2015. It experienced rapid inflation during 2017, which might be attributed to generous mining rewards. At the start of 2018, PAC had become one of the cheapest cryptocurrency coins out there, with a relatively large total supply of roughly 3.5 trillion coins and a planned cap of 100 trillion. It has a devoted community that hopes to see their holdings come to fruition and make them rich, believing in its future as an “Internet penny” that lends itself to micro-transactions. PACcoins started to trade at 0.0000$ as of only a couple of days ago. Later on, the coin gained some on its price with a couple of increases that helped the price jump from non-existent to existent. After the latest decrease that made the price drop for over –9%. This decrease led to the current price of 0.000031$, which is still better than having the coin traded at 0$. For now, it remains uncertain what will happen with PACcoin and how well this coin will perform after being re-launched three weeks from now. For now, we strongly advise to give this token a thought and consider investing – the price is still too low, so even if the coin drops again, you won’t be losing much money.