Why is Cardano great?

“We present “Ouroboros”, the first blockchain protocol based on proof of stake with rig- orous security guarantees . We establish security properties for the protocol comparable to those achieved by the bitcoin blockchain protocol.30 Mar 2018

In proof-of-stake, only people who own coins can help validate transactions — and they earn rewards for doing so. If you hold Cardano, you can stake it and earn passive income . It’s less risky than other ways people can earn rewards, such as lend-earn products or liquidity pools.

Using Ouroboros, Cardano is able to securely, sustainably, and ethically scale , with up to four million times the energy efficiency of bitcoin.

Technical aspects. Atypically, Cardano does not have a white paper .