Sophia Wagner

Ethereum & DeFi Expertin

Verified: Blockchain MSc (ETH Zürich)Verified: DeFi ResearcherVerified: Smart Contract Auditor

Experience & Background

Sophia Wagner is a technical researcher and auditor specializing in the Ethereum virtual machine (EVM) and decentralized application (dApp) architecture. Her academic work at ETH Zurich focused on the scalability of Layer 2 solutions.

Expertise

Smart Contract Security: Conducting security audits for emerging DeFi protocols.
DeFi Architecture: Analyzing liquidity pool dynamics and yield farming mechanisms.
Ethereum Roadmap: Tracking the transition from the Beacon Chain to full Sharding and beyond.

Before joining KryptoWatch, Sophia worked as a consultant for several Ethereum-based startups, helping them optimize their gas efficiency and security models.

Articles by Sophia Wagner

ethereum 16 min

Best Ethereum Wallets in 2026: Secure Options for Beginners

Protect your Web3 assets. Explore the best Ethereum wallets of 2026, comparing hot wallets vs cold wallets, self-custody, and account abstraction features.

ethereum 16 min

Top Real-World Use Cases of Ethereum Beyond Payments in 2026

Discover how Ethereum is being used in the real world today. Explore Tokenization of Real World Assets (RWAs), Supply Chain tracking, DAOs, and Digital Identity.

ethereum 14 min

Ethereum NFTs Explained: How Digital Ownership Works in 2026

NFTs are much more than digital art. Learn how Non-Fungible Tokens work on Ethereum, the ERC-721 standard, and how they are revolutionizing gaming, real estate, and digital identity.

ethereum 12 min

What Are DApps? Exploring Decentralized Apps on Ethereum

What makes a DApp different from a regular app? Learn how decentralized applications use smart contracts to eliminate middlemen, censorship, and data monopolies.

ethereum 18 min

What Is Ethereum 2.0? Proof of Stake and the Future of ETH

Discover what Ethereum 2.0 means in 2026. Learn about The Merge, Proof of Stake, Sharding, and how the network is scaling to process millions of transactions per second.

ethereum 16 min

Ethereum Layer 2 Solutions Explained: Arbitrum vs Optimism

Solve the high gas fee problem. Learn how Ethereum Layer 2 scaling solutions (Rollups like Arbitrum, Optimism, and Base) make Web3 fast, cheap, and globally accessible in 2026.

ethereum 14 min

What Is Gas in Ethereum? Fees, Costs, and Optimization Tips

Why does Ethereum cost money to use? Understand Gas fees, Gwei, base fees vs priority fees, and learn expert strategies to optimize your transaction costs in 2026.

ethereum 18 min

DeFi on Ethereum: A Beginner’s Guide to Decentralized Finance

Discover how Decentralized Finance (DeFi) is replacing traditional banking. Learn about automated market makers (AMMs), lending protocols, yield farming, and stablecoins.

ethereum 15 min

What Are Smart Contracts? A Beginner-Friendly Explanation

Understand smart contracts with our comprehensive 2026 guide. Learn how these self-executing lines of code are replacing lawyers, banks, and middlemen in the Web3 economy.

ethereum 20 min

Ethereum vs Bitcoin: Complete Comparison for Beginners (2026 Guide)

Confused about the difference between Bitcoin and Ethereum? Read our expert comparison on Digital Gold vs the World Computer, PoW vs PoS, and investment use cases.

ethereum 25 min

Ethereum Explained: How It Works and Why It Matters in 2026

A complete, high-authority guide to Ethereum. Discover how smart contracts, decentralized applications (DApps), and the EVM are powering the future of Web3 and decentralized finance.