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eUTXO
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Intermediate
Updated 11/26/2025

What is

eUTXO?

eUTXO (Extended UTXO) — расширенная UTXO‑модель Ergo для смарт‑контрактов: боксы содержат ценность, данные и условия расходования.

eUTXO (Extended Unspent Transaction Output) — модель состояния Ergo, которая расширяет классический UTXO подход: каждый бокс содержит ERG/токены, данные (регистры) и скрипт‑условия. Транзакция потребляет конкретные боксы и создаёт новые, что делает исполнение более детерминированным, уменьшает классы уязвимостей и позволяет параллельную проверку независимых транзакций.

Key Points

  • Бокс содержит ценность, данные и условия расходования (скрипт)
  • Детерминированность: понятный результат и стоимость до отправки
  • Параллелизм: меньше конфликтов за общий глобальный стейт
  • Меньше классов атак, характерных для некоторых account‑based моделей
  • Нативные токены без «обёрток»

Use Cases

1

DEX и свопы с более предсказуемым исполнением

2

Мультисиг‑кошельки с сложными условиями

3

Таймлок‑контракты и предсказуемые сценарии расходования

4

Приложения с приватностью на Sigma‑протоколах

Technical Details

Ergo boxes have registers R0-R9 where R0 holds the monetary value, R1 the protecting script (ErgoScript), R2 the tokens, R3 the creation info, and R4-R9 are available for arbitrary data. Scripts can access box contents, context (block height, headers), and perform cryptographic operations via Sigma protocols.

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Frequently Asked Questions

Questions about eUTXO

Common questions about this topic

How is Ergo different from Bitcoin?

Ergo extends Bitcoin's model with smart contracts. Both use PoW and UTXO, but Ergo adds: eUTXO for programmable boxes, ErgoScript for smart contracts, Sigma Protocols for privacy, storage rent for sustainability, and NiPoPoWs for light clients. Think of Ergo as 'Bitcoin with smart contracts done right.'

Comparison
Technology

Is Ergo a good investment?

This is not financial advice. Ergo has strong fundamentals: fair launch (no VC dump risk), innovative technology (eUTXO, Sigma Protocols, NiPoPoWs), active development, and a cypherpunk ethos. It's a smaller market cap project with higher risk/reward than established chains. Research thoroughly, understand the technology, and never invest more than you can afford to lose.

Comparison
Getting Started

What's the difference between Ergo and Cardano?

Both use eUTXO, but differ in consensus and philosophy. Ergo: PoW (Autolykos), fair launch, no VC funding, storage rent. Cardano: PoS (Ouroboros), VC-funded, larger ecosystem. Ergo prioritizes decentralization and sustainability; Cardano prioritizes academic rigor and institutional adoption.

Comparison
Technology

How to build DeFi on Ergo?

Building DeFi on Ergo starts with understanding the eUTXO model and ErgoScript. Unlike account-based chains, Ergo's box model provides deterministic execution, no MEV by design, and predictable gas costs. Use Oracle Pools for price feeds, and leverage existing patterns from Spectrum Finance and SigmaUSD.

How-to
DeFi
View all questions

Related Topics

DeFi on Ergo

Decentralized Finance Without MEV, Without Permission

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Ergo Technology

Research-Driven Innovation for Real-World Use

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