Zcash (ZEC) is a cryptocurrency with strong cryptography that is supposed to provide high security and privacy. At some point, Zcash was endorsed by Edward Snowden and Roger Ver. Zcash is a Bitcoin fork and it exists since 2016. The mechanism providing privacy is called zero-knowledge proofs (or zk-SNARKS).
CORE is a non-inflationary cryptocurrency that is designed to execute profit-generating strategies autonomously with a completely decentralized approach. In existing autonomous strategy-executing platforms a team or single developer is solely responsible for determining how locked funds are used to generate ROI. This is hazardous to the health of the fund as it grows, as it creates flawed incentives, and invites mistakes to be made. CORE does away with this dynamic and instead opts for one with decentralized governance.