Cardano is a cryptocurrency which uses the Ouroboros Proof-of-stake (PoS) Algorithm which promises a much higher Transactions per Second capacity than any other PoS cryptocurrency such as Ethereum, Tezos or Cosmos
The Cardano Network splits time into periods called epochs which last approximately 5 days
Cardano has a limited number of coins in circulation: 45.000.000.000 ₳
As of Jan 2021 there are approximately 31.112.484.646 ₳ in circulation
Every Transaction is public and can be read in the blockchain
Some blocks are produced each epoch by random Stake Pools. Read more about this process
Cardano allows Smart Contracts and K Ethereum Virtual Machine (KEVM) which is a version taken from the Ethereum Virtual Machine
Academic sources can be found via the IOHK website