How Bitcoin Works - Technical Overview

High-Level Architecture

Transaction Flow

Mining Process (Proof-of-Work)

Blockchain Structure

Bitcoin Transaction Anatomy

Network Participants

Security Model

Key Facts (2025)

• Block Time: ~10 minutes (adjusted every 2,016 blocks)
• Block Reward: 3.125 BTC (halved April 2024)
• Daily Issuance: ~450 BTC (144 blocks/day)
• Network Hashrate: >700 EH/s
• Difficulty Adjustment: Every ~2 weeks
• Mining Hardware: ASIC machines
• Mining Strategy: Mostly pool mining