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wtf is bitcoin?

bobvanluijt/bitcoin — explained in plain English

Analysis updated 2026-07-18 · repo last pushed 2015-10-20

C++Audience · developerComplexity · 4/5DormantSetup · hard

TL;DR

Bitcoin Core is the reference software that runs the Bitcoin network, letting anyone validate transactions and secure the network without trusting a bank.

Mindmap

mindmap
  root((bitcoin))
    What it does
      Runs a full node
      Validates transactions
      Stores blockchain
    Tech stack
      C plus plus
      Peer to peer
    Use cases
      Run a full node
      Store and send bitcoin
      Build bitcoin apps
    Audience
      Developers
      Enthusiasts
    Requirements
      Full blockchain download
      Careful review process

Code map

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filefunction / class

Why would anyone build with this?

REASON 1

Run a full Bitcoin node to independently validate transactions and secure the network.

REASON 2

Use it as a wallet to store, send, and receive Bitcoin.

REASON 3

Build another application that needs to interact with the Bitcoin network.

REASON 4

Verify the entire Bitcoin transaction history yourself instead of trusting a third party.

What's in the stack?

C++

How it stacks up

bobvanluijt/bitcoinachanana/mavsdkalange/llama.cpp
Stars——0
LanguageC++C++C++
Last pushed2015-10-202024-05-20—
MaintenanceDormantDormant—
Setup difficultyhardmoderatemoderate
Complexity4/54/54/5
Audiencedeveloperdeveloperdeveloper

Figures from each repo's GitHub metadata at analysis time.

How do you spin it up?

Difficulty · hard Time to first run · 1day+

Requires downloading and verifying the entire Bitcoin blockchain history.

Yoink these prompts

Prompt 1
Explain how running Bitcoin Core as a full node lets me verify transactions without trusting a third party.
Prompt 2
Walk me through setting up Bitcoin Core and syncing the blockchain for the first time.
Prompt 3
Show me how to use Bitcoin Core's wallet features to send and receive Bitcoin.
Prompt 4
Help me understand how Bitcoin Core's peer-to-peer network reaches consensus without a central authority.

Frequently asked questions

wtf is bitcoin?

Bitcoin Core is the reference software that runs the Bitcoin network, letting anyone validate transactions and secure the network without trusting a bank.

What language is bitcoin written in?

Mainly C++. The stack also includes C++.

Is bitcoin actively maintained?

Dormant — no commits in 2+ years (last push 2015-10-20).

How hard is bitcoin to set up?

Setup difficulty is rated hard, with roughly 1day+ to a first successful run.

Who is bitcoin for?

Mainly developer.

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