Cardano
ADAProof-of-Stake layer-1 blockchain built on peer-reviewed academic research and formal verification.
요약
Cardano is a proof-of-stake layer-1 blockchain founded in 2015 by Ethereum co-founder Charles Hoskinson and launched in 2017 by IOHK. Built with a peer-reviewed academic engineering approach, Cardano emphasizes formal verification, sustainability, and predictable smart contract execution.
작동 방식 & 아키텍처
Ouroboros Proof-of-Stake Algorithm
Cardano utilizes Ouroboros, the first mathematically proven secure Proof-of-Stake consensus protocol.
Time is divided into epochs (5 days) and slots (20 seconds). Stake pools are elected as slot leaders to produce blocks, enabling liquid staking without slashing locks.
Extended UTXO (eUTXO) Architecture
Cardano adopts an Extended UTXO (eUTXO) model, extending Bitcoin’s UTXO model to support deterministic smart contracts.
This architecture prevents unexpected gas fee failures because transaction outputs and fees are computed locally prior to broadcasting.
주요 사용 사례
장점 & 고려 사항
장점
- Rigorous peer-reviewed development approach reduces protocol flaws
- Liquid non-custodial staking without locking periods
- Deterministic transaction fee calculations prevent failed gas charges
단점 & 제한 사항
- Slower development cadence due to formal academic peer-review processes
- eUTXO model requires paradigm shifts for smart contract developers
- Lower total value locked (TVL) in DeFi compared to EVM ecosystems
자주 묻는 질문
Q: What is Ouroboros?
Ouroboros is Cardano’s flagship Proof-of-Stake consensus mechanism based on peer-reviewed cryptographic proofs.
Q: What is the eUTXO model?
eUTXO extends Bitcoin’s Unspent Transaction Output design to enable deterministic smart contracts with predictable execution costs.
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