Btrust is a bitcoin academy. I am a proud student of 2025 cohort.

The Concept

I really wanted to put more time and effort in understanding bitcoin technical concepts, so when it happened to me that got relocated somewhere in global south, I couldn't miss the opportunity to be become a part of the latest cohort, I am very grateful for this.

Implementation

We used rust with bitcoincore library.

Result

At this stage the project is minimal and simple, but it already explains quite a bit, at least I learned a lot on the way. The results are in this repo: capstone_project and this one (btc_demy branch) was following a video tutorial.

Lessons Learned

Table of Contents

• Rust Concepts
• Bitcoin Concepts
• Code Architecture
• Implementation Details

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Rust Concepts

1. Error Handling

Our code demonstrates Rust's robust error handling through:

• Use of Result<T, E> type for fallible operations
• The ? operator for error propagation
• Custom error type handling with RpcError

2. Structs and Implementation Blocks

The code showcases Rust's struct system and implementation blocks:

• Config struct for configuration management
• TransactionDetails struct for organizing transaction data

3. Traits

Several Rust traits are implemented:

• Debug trait for debugging output
• Display trait for custom string formatting
• Custom trait implementations for Bitcoin-specific functionality

4. Ownership and Borrowing

The code demonstrates Rust's ownership system:

• Reference borrowing for function parameters
• Cloning when ownership is needed

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Bitcoin Concepts

1. Wallet Management

The code implements basic Bitcoin wallet operations:

• Wallet creation and loading
• Address generation
• Balance checking
• Transaction handling

2. Mining and Block Generation

Key mining concepts demonstrated:

• Block generation to address
• Mining rewards collection
• Confirmation mechanics
• Minimum number of blocks to mine to get the reward
• Change address and amount

3. Transaction Flow

Complete transaction lifecycle:

• Address Generation
• Fund Transfer
• Mempool Entry
• Transaction Confirmation
• Change Address Handling

4. Bitcoin Network Communication

The code works with Bitcoin's Regtest network:

• Regtest network running in docker container
• Address type specification (Bech32)

Code Architecture

1. Configuration Management

• Environment-based configuration
• Secure credential management
• RPC client creation

2. Transaction Details Structure

• Comprehensive transaction information
• Input and output tracking
• Fee calculation
• Block confirmation details