$ADA Cardano (ADA) is an open-source blockchain network that relies on a proof-of-stake (PoS) consensus mechanism. It is based on a wide array of design elements that include a platform for decentralized application development and a financial ledger that supports multiple assets and verifiable smart contracts.

The creation and ongoing development of Cardano are based on a broad range of academic research, prominently featuring the Ouroboros protocol: a reliably secure proof-of-stake (PoS) blockchain protocol; this fact is often used to distinguish the project from competing blockchain protocols.

The financial ledger used for transactions employs a modified version of UTXO to accommodate support for smart contracts, which is currently under development.