Stage 1 · Orient
Layer 1 - Foundations
Money as technology
Broken Money
A broad study of money, banking, payments, financial systems, and technology across history and into the digital age.
bitcoinmind.com
BitcoinMind
A curated map for studying Bitcoin as money, protocol, custody practice, and a contested institution.
Five Questions, One Map
View the study paths →Preview the Library
Browse the Library →Stage 2 · Understand
Layer 2 - Systems
Short technical primer
Inventing Bitcoin
A short explanation of how Bitcoin works, written for readers who want a fast but serious technical introduction.
Preview the Texts
View all texts →Stage 1 · Orient
Primary Texts2002
Monetary prehistory
Shelling Out: The Origins of Money
An anthropological account of money, collectibles, scarcity, costly signals, and trust before modern finance.
Stage 2 · Understand
Primary Texts2008
Origin document
Bitcoin: A Peer-to-Peer Electronic Cash System
The paper that introduced Bitcoin as peer-to-peer electronic cash without a trusted central party.
Preview the Toolkit
Use the Toolkit →Stage 3 · Verify
Observation
Observe the network
Mempool.space
A public view of Bitcoin blocks, fees, transactions, mining pools, and mempool congestion.
Stage 3 · Verify
Verification
Verify the rules
Bitcoin Core
The reference Bitcoin full-node implementation for independently validating blocks, transactions, and consensus rules.
Use the Reference Desk
Open the glossary →Timeline
From digital-cash precursors to a protocol, market, and political institution. Milestones without price mythology.
EXPLORE →
Glossary
Not definitions — conceptual anchors. Each entry is a compact note on a core Bitcoin idea.
READ →
Objections
Nine serious criticisms. Each begins with what it gets right before attempting a narrower response.
READ →
The Network, Now
Place it in history →Network Clock Snapshot · Aug 25 UTC
Bitcoin is measured in blocks before it is measured in headlines. Block 964,047 — seventeen years and seven months since genesis.
Genesis · Jan 2009Apr 2028 · Halving
Next Halving85,953 blocksA predictable supply event built into the protocol
Hash Rate873.3 EH/sEstimated computation committed to mining
Mempool83,914 txTransactions waiting for inclusion
Difficulty Epoch399 / 2,016Blocks into the current adjustment cycle
Supply Mined95.60%
020.08M / 21M
From Hiei
NotesA primary record from April 2011, preserved against the convenience of hindsight.Read →QuestionsProtocol facts, tradeoffs, and open problems kept separate from forecasts.Read →StackCustody principles, explicit trust boundaries, recovery, and inheritance.Read →AboutThe story behind this site, and the principles that guide its curation.Read →