About this publication
This newsletter breaks down the internals of blockchain systems Ethereum, Solana, and beyond (In future more protocols will be added) through real code, traces, and examples.
No buzzwords, no fluff, just deep dives that help developers actually understand how things work under the hood.
Each post focuses on one specific topic: calldata decoding, ABI encoding, gas, upgradability, token mechanics, or Solana programs. Everything will be explained through real execution and practical insights.
About me
I’m Andrey Obruchkov, a blockchain engineer focused on EVM & multi-chain protocol internals.
Every week I publish a focused deep dive on one topic e.g., ABI encoding, transaction types, RPC tracing with code samples in Go/Solidity and real-world chain traces.
Subscribe to receive:
Actionable code examples you can drop into your project
In-depth breakdowns of what happens under the hood
Insights tailored for engineers building high-performance smart contracts or cross-chain systems
Join a community of devs who care about shipping efficient, well-understood blockchain systems no marketing fluff, no high-level summaries.
Why subscribe?
If you enjoy learning about blockchain systems from a developer’s point of view, not marketing talk. This publication is for you.
Subscribers get early access to new posts, technical breakdowns, and behind-the-scenes notes on protocol design and debugging.
Join the community
Readers here include engineers, founders, and researchers who enjoy going deep into blockchain architecture and smart contract mechanics.
You’re welcome to comment, share insights, or suggest topics for the next posts.

