Learn the basics of blockchain from scratch by step-by-step creating your own system. You will master public and private key cryptography, working with blocks and Protobuffers, implementing transactions and nodes on gRPC, as well as mechanisms for peer-to-peer interaction, data storage, and the transaction mempool.
Blockchain from scratch with GRPC and Protobuffers
About the Author: Anthony GG
Anthony GG is a backend engineer focused on Go and Rust, with a decade-plus background in distributed systems, blockchain infrastructure, and the kind of low-level networking that powers algorithmic trading platforms. He is best known as the creator of the Anthony GG YouTube channel, where he teaches Go through long-form, code-along projects — picking real problems and building them end-to-end on camera rather than walking through slide decks.
His CourseFlix material follows the same pattern. The blockchain course implements a working chain from scratch in Go using gRPC and Protocol Buffers, covering public/private-key cryptography, block and transaction structure, the mempool, and peer-to-peer networking. The webhook service course walks through a production-style Go application deployed over SSH. A short beginner course covers the language fundamentals, and the weekly live sessions answer questions and refactor real code. The focus across everything is engineering craft underneath the language — concurrency, networking, and the kind of code that survives review at a real company.
Watch Online 8 lessons
| # | Lesson Title | Duration | Access |
|---|---|---|---|
| 1 | Private and public key cryptography Demo | 38:29 | |
| 2 | Blocks and protobuffers | 27:12 | |
| 3 | Implementing Transactions | 38:46 | |
| 4 | Implementing the node server with GRPC | 40:27 | |
| 5 | Connecting with peers | 35:45 | |
| 6 | Peer discovery (P2P) | 36:34 | |
| 7 | Blockchain data structure | 40:38 | |
| 8 | Transaction mempool | 38:21 |
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