What Is Cardano?

Cardano is a decentralized, open-source blockchain platform founded by Charles Hoskinson, one of the eight co-founders of Ethereum. Development began in 2015, and the platform launched in September 2017 with its native token ADA. The project was built by the development company Input Output Hong Kong (IOHK, now Input Output Global or IOG), with the Cardano Foundation based in Switzerland handling governance and adoption, and Emurgo, a Japanese venture firm, driving commercial partnerships. Cardano distinguishes itself through a research-driven approach — its protocol designs are based on peer-reviewed academic papers published in top cryptography conferences and built using formal verification methods borrowed from high-assurance software engineering.

Overview - Table of Contents
What Is Cardano?
Getting Started With Cardano
How To Get A Cardano Wallet?
Cardano Resources
How To Buy Cardano?
Cardano Staking
Latest Cardano News

Cardano uses the Ouroboros family of Proof of Stake consensus protocols, which were the first PoS protocols to be mathematically proven secure through peer-reviewed research. Ouroboros was designed by Professor Aggelos Kiayias at the University of Edinburgh, in collaboration with researchers from five academic institutions. The protocol divides time into epochs and slots, randomly selecting a stake pool to produce each block based on the proportion of total ADA delegated to it. ADA holders can delegate their stake to stake pools or run their own pools to participate in block production and earn rewards. Unlike some PoS systems, delegated ADA is never locked or at risk of slashing — it remains in the holder's wallet and under their full control at all times.

Cardano's architecture separates the network into two layers: the Cardano Settlement Layer (CSL), which handles ADA transactions and accounting, and the Cardano Computation Layer (CCL), which handles smart contract execution and decentralized application logic. This separation of concerns — inspired by the design philosophy behind internet protocols like TCP/IP — allows each layer to be upgraded independently and optimized for its specific purpose without affecting the other.

The platform was developed in a series of named eras, each adding major functionality: Byron (foundation and basic transaction capability), Shelley (decentralization and staking, launched 2020), Goguen (smart contracts), Basho (scalability optimization), and Voltaire (on-chain governance). Smart contract support arrived with the Alonzo upgrade in September 2021, enabling decentralized applications on Cardano. Developers can write smart contracts using Plutus (based on the Haskell programming language), Aiken (a more developer-friendly alternative that compiles to Plutus Core), and Marlowe (a domain-specific language designed specifically for financial contracts that makes formal verification more accessible to non-programmers).

Cardano uses an extended UTXO (eUTXO) accounting model, which differs from the account-based model used by Ethereum. The eUTXO model extends Bitcoin's UTXO approach by allowing each unspent transaction output to carry additional data (called a datum) and be governed by validator scripts. This offers advantages in determinism (users can predict exact transaction outcomes and fees before submitting), parallelism (non-conflicting transactions can be processed simultaneously), and formal verification of smart contracts. However, it requires different design patterns than account-based systems, which has influenced the development of Cardano's DeFi ecosystem.

ADA's initial distribution occurred through a public crowdsale conducted primarily across Asia between September 2015 and January 2017, raising approximately $62 million. The total supply of ADA is capped at 45 billion, with roughly 35 billion in circulation. The remaining ADA is distributed through staking rewards, drawn from a reserve that diminishes over time. Cardano's treasury, funded by a percentage of staking rewards and transaction fees, provides sustainable funding for ecosystem development without relying on external venture capital or foundation grants.

Governance is a central pillar of Cardano's design. The Voltaire era introduced on-chain governance through CIP-1694, enabling ADA holders to vote directly on protocol changes, treasury spending proposals, and constitutional matters through delegated representatives (DReps). This governance model was inspired by democratic systems and aims to make Cardano one of the most decentralized blockchain governance structures in the industry. The Intersect member-based organization now coordinates much of the protocol's open-source development, transitioning stewardship away from IOG toward the community.

Getting Started With Cardano

Getting started with Cardano is straightforward:

Step 1: Choose a Cardano wallet. Lace (by IOG) and Eternl are the most popular options for browser-based wallets. Daedalus is the full-node desktop wallet for those who want to run a complete copy of the blockchain.
Step 2: Purchase ADA from a major exchange such as Coinbase, Kraken, or Binance.
Step 3: Transfer ADA to your personal wallet to take custody of your funds.
Step 4: Delegate your ADA to a stake pool to start earning staking rewards (typically 3-5% annually). Your ADA remains in your wallet and is never locked — you can spend or move it at any time.

How to Get a Cardano Wallet?

Lace Wallet

Lace is a browser extension wallet developed by Input Output Global (IOG). It supports ADA, Cardano native tokens, NFTs, staking delegation, and DApp interactions through the CIP-30 connector standard. Lace features a clean, modern interface and supports hardware wallet integration with Ledger devices for added security.

Eternl Wallet

Eternl (formerly CCVault) is a full-featured Cardano wallet available as a browser extension and mobile app. It offers advanced features including multi-account management, detailed staking analytics with pool performance data, DApp connectivity, and support for Cardano native tokens and NFTs. Eternl is widely regarded as the most feature-rich Cardano wallet.

Daedalus

Daedalus is the official full-node desktop wallet for Cardano, developed by IOG. It downloads and independently validates the entire Cardano blockchain, providing the highest level of trustless verification. Daedalus supports staking delegation and includes a built-in stake pool ranking system. However, because it runs a full node, it requires more disk space and takes longer to sync than light wallets.

Hardware Wallets

Ledger hardware wallets (Nano S Plus and Nano X) support ADA and can be used with Lace, Eternl, or other Cardano wallets for secure offline key storage. Trezor also supports ADA through its web interface. Hardware wallets are recommended for securing larger holdings, as private keys are stored on the device and never exposed to the internet.

Cardano Resources

How to Buy Cardano?

ADA is available on most major cryptocurrency exchanges:

Centralized Exchanges

ADA can be purchased with fiat currency on Coinbase, Kraken, Binance, and many other exchanges. Most offer ADA/USD, ADA/EUR, and ADA/BTC pairs. After purchasing, transfer ADA to a personal wallet to maintain custody and immediately begin earning staking rewards by delegating to a stake pool. Unlike some staking systems, there is no minimum amount required to delegate on Cardano.

Decentralized Exchanges

On the Cardano network, decentralized exchanges like Minswap, SundaeSwap, and WingRiders allow you to swap ADA for Cardano native tokens. These DEXs use the eUTXO model, which means transactions are deterministic — you know the exact outcome before you submit, eliminating failed transactions that still charge fees (a common issue on account-based blockchains).

Cardano Staking

Cardano cannot be mined in the traditional sense because it uses Proof of Stake rather than Proof of Work. Instead, the network is secured through staking, where ADA holders delegate their tokens to stake pools operated by community members.

Stake pool operators run Cardano nodes that produce blocks and validate transactions. The protocol randomly selects pools to create blocks based on the proportion of total ADA delegated to them. Rewards are distributed every epoch (5 days), with delegators typically earning between 3% and 5% annual yield. Importantly, delegated ADA never leaves your wallet — delegation is a non-custodial on-chain instruction, meaning you retain full control and can spend or redelegate at any time without any unbonding period. Running a stake pool requires a dedicated server, while delegators can participate using any Cardano wallet. Community tools like Cexplorer help delegators evaluate pool performance and saturation levels.

Latest Cardano News

Cardano has entered its governance era with the full implementation of CIP-1694 on-chain governance, enabling every ADA holder to participate in protocol decisions through voting or delegation to DReps. The ecosystem continues to grow with expanding DeFi activity across protocols like Minswap, Liqwid, and SundaeSwap. Developer tooling has expanded with Aiken and Marlowe reducing the barrier to building on Cardano. Active development continues on scaling solutions including Hydra (Layer 2 state channels) and partner chains. The Intersect member-based organization now coordinates much of the protocol's open-source development.