Cardano
ADAProof-of-Stake（PoS） レイヤー1 ブロックチェーン built on peer-reviewed academic research and formal verification.
エグゼクティブサマリー
Cardano is a Proof-of-Stake（PoS） レイヤー1 ブロックチェーン 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 スマートコントラクト execution.
仕組み・プロトコルアーキテクチャ
Ouroboros Proof-of-Stake（PoS） Algorithm
Cardano utilizes Ouroboros, the first mathematically proven secure Proof-of-Stake（PoS） 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 スマートコントラクトs.
This architecture prevents unexpected gas fee failures because transaction outputs and fees are computed locally prior to broadcasting.
主なユースケース
利点と課題
利点・強み
- Rigorous peer-reviewed development approach reduces protocol flaws
- Liquid non-custodial staking without locking periods
- Deterministic transaction fee calculations prevent failed gas charges
課題・制限事項
- Slower development cadence due to formal academic peer-review processes
- eUTXO model requires paradigm shifts for スマートコントラクト developers
- Lower total value locked (TVL) in DeFi compared to EVM ecosystems
よくある質問
Q: What is Ouroboros?
Ouroboros is Cardano’s flagship Proof-of-Stake（PoS） コンセンサスメカニズム based on peer-reviewed cryptographic proofs.
Q: What is the eUTXO model?
eUTXO extends Bitcoin’s Unspent Transaction Output design to enable deterministic スマートコントラクトs with predictable execution costs.
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