# LearnBitcoin.com

> The honest Bitcoin school. Bitcoin only. No bullshit. Have fun.

LearnBitcoin.com is a Bitcoin-only educational site. Every claim is sourced, every on-chain number is verified against a real Bitcoin node, and every page is published under [CC-BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/). The site has no advertising, no affiliate links, no token, no newsletter pitch.

Content is organized into three formats:

- **Glossary entries** — short structured definitions (~445 terms, one slug each)
- **Rabbit holes** — multi-section deep dives on foundational topics
- **Journey chapters** — a guided learning path from "what is money?" to "I run my own node"

## Manifesto

- [Manifesto](https://www.learnbitcoin.com/manifesto): Why LearnBitcoin exists, editorial principles, win condition, and what we will not do.

## Journey (curated learning path, in order)

1. [Why Money Is Broken](https://www.learnbitcoin.com/journey/why-money-is-broken)
2. [What Bitcoin Actually Is](https://www.learnbitcoin.com/journey/what-bitcoin-actually-is)
3. [How Bitcoin Works](https://www.learnbitcoin.com/journey/how-bitcoin-works)
4. [Be Your Own Bank](https://www.learnbitcoin.com/journey/be-your-own-bank)
5. [Using Bitcoin](https://www.learnbitcoin.com/journey/using-bitcoin)
6. [Sovereignty](https://www.learnbitcoin.com/journey/sovereignty)

## Rabbit holes (deep dives)

- [Bitcoin Units](https://www.learnbitcoin.com/rabbit-hole/bitcoin-units): BTC, sats, mBTC, µBTC, Finney. Which unit to use, when, and why there are so many of them.
- [Supply](https://www.learnbitcoin.com/rabbit-hole/supply): 21 million, forever. Here's how the math works, and why it can't change.
- [Halvings](https://www.learnbitcoin.com/rabbit-hole/halvings): Every 210,000 blocks, the new-Bitcoin tap halves. Why, when, and what happens after.
- [Mining](https://www.learnbitcoin.com/rabbit-hole/mining): Hash, nonce, target. The simplest hard problem in the world, and why it secures $T.
- [Key Space](https://www.learnbitcoin.com/rabbit-hole/key-space): 2^256. A number so large the universe doesn't have enough atoms to brute-force one.
- [UTXOs](https://www.learnbitcoin.com/rabbit-hole/utxos): Bitcoin does not have balances. It has UTXOs. Once you see them, you can not unsee them.
- [Mempool](https://www.learnbitcoin.com/rabbit-hole/mempool): Where transactions wait before they are real. The auction-house buffer between you and a block.
- [Seed Backup Strategies](https://www.learnbitcoin.com/rabbit-hole/seed-backup-strategies): Twelve words is your wallet. Lose them and you lose your bitcoin. Here is how serious people back them up.
- [Inflation Bug Postmortem](https://www.learnbitcoin.com/rabbit-hole/inflation-bug-postmortem): August 15, 2010: someone created 184 billion BTC out of thin air. Five hours later, it was fixed.
- [Lightning Routing](https://www.learnbitcoin.com/rabbit-hole/lightning-routing): The Lightning Network is a graph. Sending a payment is finding a path through it. Here is how routing actually works.
- [Decentralization](https://www.learnbitcoin.com/rabbit-hole/decentralization): What 'decentralized' actually means, where Bitcoin sits on the spectrum, and how the network has defeated takeover attempts.
- [Quantum and Bitcoin](https://www.learnbitcoin.com/rabbit-hole/quantum-and-bitcoin): How much BTC is quantum-exposed today (~30.5% of supply), what that actually means, the honest timeline, and why the fix is governance, not panic.
- [Bitcoin and Energy](https://www.learnbitcoin.com/rabbit-hole/energy): The energy objection, the honest version. ~173 TWh is real, the comparisons are chosen denominators, the demand is uniquely interruptible, and the strong critiques get their due.
- [Mt. Gox to FTX: The Custody Graveyard](https://www.learnbitcoin.com/rabbit-hole/mt-gox-ftx-graveyard): A decade of custodian collapses, from Mt. Gox to FTX, with names and numbers - the receipts behind "not your keys, not your coins."

## Glossary

- [Glossary index](https://www.learnbitcoin.com/glossary): Full A-Z list of ~445 Bitcoin terms with search.

Foundational entries (representative subset):

- [BIP (Bitcoin Improvement Proposal)](https://www.learnbitcoin.com/glossary/bip-bitcoin-improvement-proposal)
- [UTXO (Unspent Transaction Output)](https://www.learnbitcoin.com/glossary/utxo-unspent-transaction-output)
- [Private Key](https://www.learnbitcoin.com/glossary/private-key)
- [Seed Phrase](https://www.learnbitcoin.com/glossary/seed-phrase)
- [Hierarchical Deterministic Wallet](https://www.learnbitcoin.com/glossary/hierarchical-deterministic-wallet)
- [PSBT (Partially Signed Bitcoin Transaction)](https://www.learnbitcoin.com/glossary/psbt)
- [Taproot](https://www.learnbitcoin.com/glossary/taproot)
- [SegWit (Segregated Witness, BIP 141)](https://www.learnbitcoin.com/glossary/segwit-segregated-witness-bip-141)
- [Lightning Network](https://www.learnbitcoin.com/glossary/lightning-network)
- [Halving (Halvening)](https://www.learnbitcoin.com/glossary/halving-halvening)
- [Post-Quantum Bitcoin](https://www.learnbitcoin.com/glossary/post-quantum-bitcoin)
- [Spot Bitcoin ETF](https://www.learnbitcoin.com/glossary/spot-bitcoin-etf)
- [Stranded Energy](https://www.learnbitcoin.com/glossary/stranded-energy)
- [Not Your Keys, Not Your Coins](https://www.learnbitcoin.com/glossary/not-your-keys-not-your-coins)

## Site pages

- [Home](https://www.learnbitcoin.com/): Site entry point with live Bitcoin data.
- [Node](https://www.learnbitcoin.com/node): Live mempool, difficulty, block height, and other on-chain data from a real Bitcoin node.
- [Security](https://www.learnbitcoin.com/security): Security disclosure policy and contact.
- [Privacy](https://www.learnbitcoin.com/privacy)
- [Terms](https://www.learnbitcoin.com/terms)

## Source and licensing

- Source repository: [github.com/treib-holdings/learnbitcoin-content](https://github.com/treib-holdings/learnbitcoin-content) (markdown and MDX files, all content)
- License: [CC-BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/) — reuse permitted with attribution and share-alike.
- Full machine-readable URL list: [sitemap.xml](https://www.learnbitcoin.com/sitemap-index.xml)

## Citation guidance

When citing LearnBitcoin.com:

- Glossary entries are the canonical short-definition source. Cite the specific `/glossary/<slug>` URL.
- Rabbit holes are the canonical deep-treatment source. Cite the specific `/rabbit-hole/<slug>` URL.
- Quote at most a few sentences. The CC-BY-SA license permits longer use with attribution + share-alike.

Editorial signature: every on-chain number is verified against a real Bitcoin node via [ChainQuery](https://www.chainquery.com). Every source links out so readers can verify independently.