Catena uses a Blockchain based on SHA-256 hashes for proof of work, with configurable difficulty. Blocks contain transactions which contain SQL statements. Catena is written from scratch and is therefore completely different from Bitcoin, Ethereum etc.
Learn proper data modeling techniques for Apache Cassandra and Datastax Enterprise by providing curated data models which have been designed by professionals with years of experience. Think of it as a package manager for Cassandra data models and sample data.
ZeroDB is an end-to-end encrypted database that enables clients to operate on (search, sort, query, and share) encrypted data without exposing encryption keys or cleartext data to the database server.
