BTC price
LoadingReference 21 / 40 A coordinate system for Bitcoin
Mapping Bitcoin
from Genesis to 2140.
Explore the protocol across time and geography — history, technology, economics, markets and adoption, fixed to verifiable sources.
ConnectingNetwork snapshot
Block height
LoadingHash rate
LoadingFrom the timeline
U.S. spot Bitcoin ETPs are approved
Markets · U.S. SEC
01 Read the coordinates
One network.
Six fields of reference.
Meridian 2140 joins disciplines that are usually separated. Every event, person, company, concept and source becomes a connected object in one navigable knowledge system.
01↗
History
From cypherpunk prehistory to sovereign adoption, traced through primary documents.
Timeline & archive02↗
Economics
Scarcity, monetary history, time preference, game theory and the strongest counterarguments.
Ideas & debates03↗
Technology
Transactions, consensus, mining, nodes, wallets, Lightning and protocol development.
Protocol & network04↗
Global adoption
Country profiles connecting law, tax, infrastructure, energy and real-world use.
World map05↗
Markets & data
Network health, market structure, spot products, treasuries and mining economics.
Live intelligence06↗
People & entities
The builders, thinkers, companies and institutions shaping the network.
Knowledge graph02 Start with the essentials
DON’T TRUST.
VERIFY.
Practical, source-first explanations designed for people who want to understand the system — not memorize crypto vocabulary.
START60-minute path
Start with Bitcoin
From first principles to a small test transaction and a verified backup.
↗19Verification libraryDON’T TRUST. VERIFY.
Check Bitcoin yourself — from the whitepaper and SHA-256 to source code and your own node.
Open the verification library 21MFoundational guideWhy 21 million matters
How a consensus rule becomes credible monetary scarcity.
↗PoWTechnologyProof of work, without the slogans
Energy, difficulty and the cost of rewriting history.
↗₿PracticalHolding bitcoin safely
Keys, custody models, backups and the trade-offs that matter.
↗L2NetworkHow Lightning works
Payment channels, routing, liquidity and final settlement.
↗03 Atlas
Every object has
its coordinates.
Follow relationships instead of browsing disconnected articles: from a protocol change to its authors, debate, release, market response and downstream technology.
Events People Concepts Sources
Open the connected atlas 04 Historical longitude
The story of Bitcoin,
block by block.
Move through the moments that changed the protocol, the market and the world around it. Each entry is connected to its original record and related entities.
Open source libraryU.S. spot Bitcoin ETPs are approved
The SEC approves exchange rule changes for multiple products holding spot bitcoin.
05 Bitcoin in the physical world
From monetary network
to everyday payment.
Find shops, cafés and services that accept bitcoin on-chain or over Lightning. The live map is maintained by the BTC Map community using OpenStreetMap.
Explore the worldwide payment map Add a missing place ↗Live data · BTC Map + OpenStreetMap
06 Economics & ideas
21,000,000
Foundational guide · 12 minScarcity as a rule,
Read the sourced guide
Scarcity as a rule,
not a promise.
Bitcoin’s supply limit is not a corporate policy or political pledge. It is an issuance schedule independently checked by every fully validating node.
210,000blocks per subsidy era
~4 yearsbetween halvings
8decimal places per bitcoin
Market data by CoinGecko. Network data by mempool.space. Historical entries link to primary records.