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.
OKEx, the 2nd most popular cryptocurrency exchange by trading volume, launched its platform token ‘OKB‘ today with 10 trading pairs. On its official support page, OKEx describes OKB is a global utility token issued by the OK Blockchain Foundation. The total available supply of OKB will be one billion tokens (1,000,000,000), with a distribution model that allocates 60% of the supply will be given out to OKEx customers for community building and during marketing campaigns. According to OKEx, the company had officially issued OKB on ERC20 protocol earlier this month. The company denied ICO (initial coin offering) and public fundraising. Reportedly the company had stated that it would be soon shifting the token to its official OK chain and subsequently it will be applied not only on OKEx’s platform but also on other related projects. There will be in total 1 billion tokens supplied globally out of which 600 million coins will be distributed to OKEx customers for community building and marketing campaigns. Rest will be locked up for a period of 1 year to 3 years. According to OKEx, the company had officially issued OKB on ERC20 protocol earlier this month. The company denied ICO (initial coin offering) and public fundraising. Reportedly the company had stated that it would be soon shifting the token to its official OK chain and subsequently it will be applied not only on OKEx’s platform but also on other related projects. There will be in total 1 billion tokens supplied globally out of which 600 million coins will be distributed to OKEx customers for community building and marketing campaigns. Rest will be locked up for a period of 1 year to 3 years.