What is eCash?

eCash (XEC) is a blockchain-based Layer 1 (L1) cryptocurrency designed to serve as peer-to-peer electronic cash on the internet. It enables fast, low-cost digital payments that anyone in the world can send and receive without relying on banks or centralized payment processors. In short, eCash is Cash for the Internet.

In November 2025, eCash integrated Avalanche Pre-Consensus to complement the security of its Proof-of-Work mining system. This technology enables eCash transactions to reach finality in just a few seconds while maintaining decentralization and robust network security.

Created on November 15, 2020, as a hard fork of Bitcoin Cash (BCH), eCash ultimately traces its roots back to Bitcoin's genesis block. eCash operates as a live, production-ready network with real-world usage, applications, and global exchange support.

The Vision Behind eCash

The concept of electronic cash originates from Bitcoin’s original vision—a decentralized system allowing people to transact directly with each other online.

eCash expands on this vision by focusing on three core goals:

• Fast payments suitable for everyday use
• Extremely low transaction fees
• Massive scalability capable of supporting global adoption

By prioritizing these features, eCash aims to become a practical payment network for billions of users worldwide.

How eCash Works

eCash is built on a UTXO-based blockchain architecture, inherited from Bitcoin’s UTXO (Unspent Transaction Output) model, to enable high scalability. This model tracks balances through unspent transaction outputs, enabling secure and efficient transaction validation.

The network uses SHA-256 Proof-of-Work mining, similar to Bitcoin, to secure the blockchain. In addition, eCash integrates Avalanche, a consensus mechanism that enhances security, enables near-instant finality, and introduces dynamic network capabilities, forming a hybrid system that significantly improves transaction speed and reliability.

Key technical characteristics include:

• Fixed supply: 21 trillion XEC
• Proof-of-Work mining: SHA-256 algorithm
• Hybrid consensus: Nakamoto PoW + Avalanche PoS
• Block time: approximately 10 minutes
• Transaction finality: ~2 seconds
• Extremely low fees: less than a hundredth of a cent

This design allows the network to remain decentralized while improving usability for real-world payments.

Avalanche Pre-Consensus and Instant Finality

One of the most significant upgrades to the network occurred on November 15, 2025, when eCash activated Avalanche Pre-Consensus. This development built upon the Nov 15, 2022, Avalanche Post-Consensus integration, which brought 51% attack prevention and one-block finality to eCash.

The Avalanche protocol is a sampling-based voting mechanism in which nodes query one another to quickly reach agreement on transactions before they are added to blocks.

This upgrade enables:

• Transaction finality in ~2 seconds (no worrying about confirmations, reorgs, “blind signing”, or errors when making a payment)
• Real-time payment settlement
• Instant deposit crediting on exchanges

By combining Proof-of-Work security with Avalanche’s rapid consensus, eCash achieves the speed typically associated with centralized systems while preserving decentralization, representing a significant evolution beyond traditional Proof-of-Work blockchains. The Avalanche layer on eCash is developed independently, based on the paper published by Team Rocket.

Scalability and Performance

Scalability is a central focus of the eCash roadmap.

The network supports large block sizes and parallel processing, enabling significantly higher transaction throughput than early blockchain systems. Long-term scaling plans target millions of transactions per second, enabling the network to support global commerce without congestion or high fees.

Even under current conditions, transactions remain extremely cheap and fast, making the system suitable for:

• everyday purchases
• micropayments
• remittances
• online tipping
• merchant payments

Smart Contracts and DeFi

Beyond simple payments, eCash supports programmable transactions and token creation for decentralized finance (DeFi).

Users and developers can create:

• fungible tokens
• Non-fungible tokens (NFTs)
• decentralized finance applications
• real-world tokenized assets (RWAs)

Smart contracts can be written using tools such as CashScript, a high-level language designed specifically for the eCash ecosystem. These capabilities enable decentralized exchanges like Agora on eCash, token trading, and other blockchain-based DeFi applications to run directly on the network.

Subnets

Subnet validation makes eCash (XEC) truly extensible by enabling unlimited second-layer protocols with virtually no impact on the main chain. This approach allows advanced features such as privacy, smart contracts, and other capabilities already proven on other blockchains to be seamlessly supported within the eCash ecosystem.

Privacy Features

Privacy is an important property of digital cash.

eCash offers optional privacy via CashFusion, a non-custodial mixing protocol that allows users to combine their transactions with others to enhance anonymity. CashFusion helps prevent transaction tracing while maintaining the blockchain's transparent, auditable supply. Because the feature is optional, users can choose when to prioritize privacy and when to make fully transparent transactions.

Staking and Network Participation

In addition to mining, eCash introduces staking for Avalanche nodes.

Users who stake 100 million XEC or more can participate in the Avalanche consensus layer, helping validate transactions and improve network security. Staking rewards are distributed alongside the block reward, incentivizing long-term participation in the network. Learn more about staking here.

Growing Ecosystem

Since its rebranding, eCash has built a growing global ecosystem. eCash (XEC) is listed on 40+ centralized exchanges.

Major exchanges including:

• Binance
• KuCoin
• UpBit
• Gate.io
• Bithumb
• CoinEx

The project also supports a wide range of non-custodial wallets, robust developer tools and infrastructure, and merchant solutions designed to make accepting XEC payments simple. In many regions, especially in emerging markets, the low fees and instant payments make eCash attractive for everyday digital transactions.

The Future of eCash

Development of eCash continues through open-source contributions from the Bitcoin ABC team and the broader ecosystem.

Ongoing and planned upgrades include:

• further expansion of Avalanche consensus
• EVM-compatible subnets for advanced smart contracts
• improved privacy features using zero-knowledge technologies
• scaling the network to millions of transactions per second

These developments aim to position eCash as a global digital payment infrastructure capable of supporting real-time financial applications on the internet. Check out the full eCash roadmap here.

eCash: Cash for the Internet

At its core, eCash is built around a simple idea: money should move as freely as information on the internet. By combining decentralized security with instant transactions and extremely low fees, eCash aims to deliver a digital currency that works for everyday payments on a global scale.

As blockchain technology continues to evolve, eCash represents a modern approach to the original promise of cryptocurrency: peer-to-peer electronic cash for everyone.

Interested in finding out more about eCash? Follow us on X at https://x.com/eCash, join our Telegram group, or check out our website at e.cash.