Smart contracts are an analogue of a legally binding agreement, which is translated into a programmable digital environment, it is stored on a decentralized blockchain. Due to the lack of access to information in the block for third parties, no one can undermine the contract with their actions. Individuals or companies cannot influence smart contracts. The prescribed action in the system is carried out only after confirmation of the fulfillment of certain conditions by each of the parties to the transaction.
Cardano itself is the first 3rd generation blockchain. When creating it, the developers focused on scalability, stability and compatibility with other projects both within the network and beyond. All this led to the formation of a number of distinctive features that allow maximizing the level of development, improving the security of the protocol, etc.