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.
Contentos is a decentralized global content ecosystem invested by Binance Labs (the blockchain incubator of world’s largest exchange, https://labs.binance.com), DHVC and various class-leading funds. Contentos TestNet was launched and its real-time network status can be viewed on Contentos Block Explorer (https://explorer.contentos.io). It aims to create a decentralized content ecosystem, where assets can be freely produced, authenticated, and distributed. The team consists of experts from the content industry, who have worked on top-tier consumer applications and blockchain projects. Contentos is not only a blueprint for what digital content ecosystem might look like in the future but we have multiple working use cases: Contentos is working with strategic partners, LiveMe and Cheetah Mobile, that have amassed over 60+ million monthly active users. With real-time user feedback, Contentos will become a premier blockchain project as it places the interest of users first.