If you have been in the crypto space for any length of time, chances are you have heard about Cardano. It is currently one of the top 10 largest cryptocurrencies by market capitalization (~$10 billion as of March 2026) and its founder and former co-founder of Ethereum, Charles Hoskinson, has long positioned it as a research-driven alternative to existing blockchains. Cardano was created with the goal of solving many of the faults seen in Bitcoin and other top cryptocurrencies.
In this article, we will discuss in detail what Cardano is, how it works and also explore its current state and upcoming developments in 2026.
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So what is Cardano?
Cardano is an open source, public blockchain project. By open source, it means anyone can contribute to the development of the program that runs it, making it impossible for one person to control with private codes. It is also decentralized, meaning there is no central authority that controls it, such as a bank or government.
The project uses a Proof-of-Stake (PoS) consensus algorithm called Ouroboros, which requires less energy consumption compared to Bitcoin and other Proof-of-Work (PoW) projects. Cardano has been a PoS blockchain from the start, unlike Ethereum which migrated from PoW to PoS in September 2022.
Smart contracts were introduced to Cardano in September 2021 through the Alonzo hard fork, bringing it into the same category as Ethereum and Solana as a platform for decentralized applications (dApps), DeFi and NFTs. The blockchain uses a unique two-layer architecture: the Cardano Settlement Layer (CSL) handles ADA transactions, while the Cardano Computation Layer (CCL) handles smart contracts.
Cardano’s development is known for its academic, peer-reviewed approach. Every major protocol update goes through review by academic institutions before implementation. The Ouroboros consensus mechanism was developed with input from universities like Edinburgh and Tokyo. While this approach prioritizes security and reliability, critics argue it has made Cardano slower to deliver features compared to competitors like Solana and Ethereum.
How does Cardano work?
The Cardano project uses PoS to verify transactions. This means a number of ADA holders stake their holdings to secure the network and are rewarded with more ADA as an incentive.
One of the most praised features of Cardano’s staking system is that there is no lock-up period. When you delegate ADA to a stake pool, your tokens remain fully liquid and accessible in your wallet at all times. Current staking rewards are approximately 3-5% APY.
Scalability
One of Cardano’s most emphasized strengths is its scalability. The network currently processes approximately 250 transactions per second (TPS) on its base layer. This is made possible with the use of Epochs. This is a system that assigns blocks to nodes and decides who validates which block on the network.
Epochs divide the transactions into slots, and any node (computers running the network) can be nominated as slot leader. The slots can also be split into smaller units, making it possible for the network to handle large numbers of transactions. To further improve scalability, Cardano is developing two major solutions: Ouroboros Leios, a consensus upgrade targeting approximately 1,000 TPS, and Hydra, a Layer 2 scaling solution that processes transactions off-chain for near-instant settlement.
Blockchain interoperability
Cardano also makes blockchain interoperability possible. Through sidechain protocols and bridges, users can connect to other blockchains. This means one can potentially move ADA to Ethereum blockchain without having to use an exchange or any other intermediary. The upcoming Midnight sidechain, launching in 2026, will add privacy-preserving capabilities using zero-knowledge proofs, enabling confidential smart contracts for enterprise and regulated use cases.
Sustainability
Another major problem that Cardano addresses in the crypto space is the problem of sustainability. With the growing demand for crypto and blockchain technology, it is expected that more and more users will use blockchain in the future for payments and other use cases.
To guarantee sustainability, the project must keep developing and have a functional community that keeps it up to date. By paying incentives to the developer community using fees generated from transactions, Cardano is basically self-sustaining. In 2025, the Axie Infinity Foundation model inspired Cardano to establish on-chain governance through CIP-1694 (the Voltaire era), allowing ADA holders to vote directly on protocol changes and how the Community Treasury funds are spent.
How is Cardano different from Ethereum?
Charles Hoskinson, the founder of Cardano, is one of the initial founders of Ethereum. So, why did he create Cardano when Ethereum already existed?
Well, because he wanted to solve some of the problems inherent in Ethereum. Cardano was also intended to be a project that solves real-life problems for large businesses and governments around the world. Since Cardano also supports dApps and smart contracts, what are the fundamental differences between the two projects?
Consensus and architecture
Both Ethereum and Cardano now use Proof-of-Stake consensus. Ethereum completed its migration from PoW to PoS in September 2022 (“The Merge”). Cardano has been PoS from its inception, using its Ouroboros protocol. The key architectural difference is that Cardano uses the extended UTXO (eUTxO) model for transactions, while Ethereum uses an account-based model. eUTxO offers some theoretical advantages in parallel processing and formal verification, but it requires a different programming approach that many developers find less intuitive.
Tokenomics
ADA has a fixed maximum supply of 45 billion tokens, with approximately 36 billion (80%) currently in circulation. New ADA enters circulation through staking rewards, but the total supply can never exceed 45 billion. This makes ADA disinflationary: while new tokens are still being created, the rate of creation decreases over time as the max supply approaches.
Ethereum, by contrast, has no fixed maximum supply. However, since The Merge and EIP-1559 (which burns a portion of transaction fees), ETH has actually become net deflationary during periods of high network activity. In practice, both tokens have different inflationary dynamics that depend on network usage.
Ecosystem and adoption
This is where the gap between Cardano and Ethereum is most visible. As of March 2026, Cardano’s DeFi total value locked (TVL) is approximately $138-552 million, while Ethereum’s TVL exceeds $50 billion across its L1 and L2 networks. Cardano’s developer community, while active (680+ commits per week across 80 repositories), is significantly smaller than Ethereum’s 30,000+ developers. Key DeFi protocols on Cardano include Minswap, SundaeSwap and Liqwid, but they handle a fraction of the volume their Ethereum counterparts process daily.
Cardano has found some real-world use cases: agricultural supply chain tracking, tamper-proof educational credentials, and government ID verification (notably in Ethiopia). However, broad mainstream adoption remains limited compared to Ethereum and Solana.
Cardano in 2026: current state and outlook
ADA is trading around $0.26 in March 2026, down more than 90% from its all-time high of $3.10 reached in September 2021. Despite this price decline, development activity remains strong and several major upgrades are in progress:
The van Rossem hard fork (Protocol Version 11) is in preparation as of March 2026, introducing new Plutus built-in functions that improve smart contract performance without breaking existing contracts. Midnight, Cardano’s privacy-focused sidechain using zero-knowledge proofs, is set to launch its mainnet in 2026. And Ouroboros Leios, the next-generation consensus upgrade, aims to significantly increase transaction throughput.
On-chain governance is now live through the Voltaire era, giving ADA holders the ability to vote on protocol changes and treasury spending. A spot ADA staking ETF has been filed, which could bring institutional capital if approved. Whether these developments can reverse Cardano’s multi-year underperformance remains to be seen.
Please note: investing in cryptocurrencies involves risk. ADA has declined over 90% from its all-time high. Past performance is no guarantee of future results. Never invest more than you can afford to lose.
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