Aleph Zero is an open-source, decentralized platform for building and running decentralized applications. It aims to provide a fast, secure, and scalable infrastructure for decentralized applications, by combining the strengths of existing blockchain technologies with new innovations in distributed systems.
Concordium is a public-layer 1, science-backed blockchain, designed to balance privacy with accountability through its ID layer. The protocol level ID, ensures that every wallet is associated with a real-world identity that has been verified through a third party ID provider, so that people and companies can trust one another, while remaining private, with zero-knowledge-proof.
Bitcoin is a decentralised digital currency and the first and most well-known cryptocurrency. It was created in 2009 by an unknown person or group of people using the pseudonym Satoshi Nakamoto. Unlike traditional currencies, Bitcoin operates on a decentralised ledger technology called the blockchain, which allows for secure and transparent transfers of ownership without the need for intermediaries such as banks.