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.
Zebi is a young and innovative organization founded, mentored and managed by Oxford, MIT, Stanford, and IIT veterans and thought leaders from Silicon Valley with experience in Google, Uber, Amazon, Microsoft, and Oracle. Zebi specializes in providing Blockchain based offerings to governments and enterprises to leverage and protect their high value and sensitive data. India’s big data generation is increasing exponentially and is expected to reach 3 Zebibytes per year (Zebibyte = 1024^7 bytes) by 2020, driven by continued growth of internet usage, social networks, proliferation of smartphones, as well as the digital initiatives and structural reforms undertaken by the government. At the same time, incidents of data crimes such as data hacks, data leaks, data tampering, identity thefts are on the rise, which are costing Indian organizations and consumers more than $30 billion annually. Zebi specializes in providing blockchain based solutions to governments and enterprises to leverage and protect their high value and sensitive data. Zebi is one of the few enterprise grade product companies based in India offering best of the expertise of Silicon Valley at Indian prices Recognizing the need and opportunity to enable with technology the enforcement of data protection regulations, Zebi has created a Blockchain driven, unique and holistic solution to make high value and sensitive data readily available for legitimate use. Zebi safeguards data against hacking and tampering, while obtaining consent from individuals. The solution comprises of Zebi Chain™ to provide immutability to critical records, coupled with a central hub called Zebi Data Gateway which enables secure and instant data exchange through Data-as-a-Service (DaaS) APIs. Zebi’s innovative, proprietary solution set is one of the first in industry and is patent pending.