Cardano is a decentralised public blockchain and cryptocurrency project and is fully open source. Cardano is developing a smart contract platform which seeks to deliver more advanced features than any protocol previously developed. It is the first blockchain platform to evolve out of a scientific philosophy and a research-first driven approach. The development team consists of a large global collective of expert engineers and researchers.
Cardano is a blockchain platform with more advanced features than any protocol yet developed, and the first to evolve out of a scientific philosophy. Our large team of expert engineers and researchers drawn from around the world started by deconstructing the concept of a cryptocurrency. Then, incorporating our groundbreaking Proof of Stake algorithm, Ouroboros, the IOHK team employed a first principles approach driven by peer reviewed academic research to build Cardano from the ground up.
This uniquely collaborative effort steadily constructed the most precisely engineered cryptocurrency yet, a product that brings together such disciplines as distributed systems, mechanism design and cryptography. The result is the first cryptocurrency to be based in Haskell code, an industrial strength product that delivers the resilience necessary for mission-critical systems, in this case securing investment.
Cardano’s multi layer protocol performs advanced functions, and has at its foundation a settlement layer that is elegantly linked to a control layer. The settlement layer will have a unit of account, while the control layer will run smart contracts. The control layer will be programmed to recognise identity, assisting compliance and allowing blacklisting for instance.
As a whole, the protocol’s design is geared towards protecting privacy rights of users, while also taking into account the needs of regulators. In doing so, Cardano is the first protocol to balance these requirements in a nuanced and effective way, pioneering a new approach for cryptocurrencies. In addition, while the platform has been solidly composed, we also recognise the need for it to evolve and adapt to changing needs. Consequently we have designed a system that can be upgraded by way of soft forks, and are installing a treasury system that will ensure the sustainability of the protocol.
Completely open source and patent-free, Cardano was built in a spirit of collaboration. And engineered for efficiency and scalability, the Cardano ecosystem is developing out into the most complete and most useful cryptocurrency ever constructed.
Ouroboros proof of stake algorithm
Cardano uses a new proof of stake algorithm called Ouroboros, which determines how individual nodes reach consensus about the network. The algorithm is a crucial part of the infrastructure that supports the Ada cryptocurrency and is a major innovation in blockchain technology. Ouroboros eliminates the need for an energy-hungry proof of work protocol, which stands as a barrier to blockchain scaling up for much wider use. Designed a team led by IOHK Chief Scientist, Professor Aggelos Kiayias, Ouroboros is the first proof of stake protocol that has mathematically been shown to be provably secure, and the first to have gone through peer review through its acceptance to Crypto 2017, the leading cryptography conference. The level of security demonstrated by Ouroboros compares to that of Bitcoin’s blockchain, which has never been compromised.
What is proof of stake?
In proof of work, miners invest computing power to compete to be chosen as the leader who gets to make the next block and win a reward for doing so. By contrast, in proof of stake, the stakeholder who will form the next block is randomly selected, proportionally to the size of the stake that they have, according to the blockchain ledger.
“Proof” means having evidence that blocks of transactions are legitimate. “Stake” means the relative value held by addresses on the node. “Relative value” is all the value held by wallets on a particular node divided by total value in the system.
There have been a number of attempts by other cryptocurrencies to develop a proof of stake algorithm, although these protocols have suffered from flaws and have not been shown to be provably secure.
For a blockchain to be secure, the means of selecting a stakeholder to make a block must be truly random. An innovation of Ouroboros to produce the randomness for the leader election process is to do this by way of a secure, multiparty implementation of a coin-flipping protocol.
Shop wish Cardano
Spend Ada just as you would any other currency, by using a Cardano debit card. Once you have applied for and obtained your card, you will be able to send Ada from your Daedalus wallet to load your Cardano debit card. The funds will automatically be converted into the local currency of your choice, for example Yen or Yuan. You can use the debit card to pay merchants as you normally would, whether it be with online retailers or in bricks and mortar stores.
The chip and pin Cardano debit card will be linked to an app, which you can use to keep track of how much Ada is on your card and the transactions that you have made. Full details about how to get your Cardano debit card will be provided here soon.