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
Spot Bitcoin ETPs approved in the United States
SEC order · 11 products · primary sources
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 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 rule changes allowing multiple spot Bitcoin exchange-traded products to list and trade.
Primary source · U.S. SEC ↗03 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
04 Knowledge graph
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
05 Start with the essentials
Clarity before
complexity.
Practical, source-first explanations designed for people who want to understand the system — not memorize crypto vocabulary.
21MFoundational guide
Why 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.
↗06 Source-first publishing
Trust the record,
not the narrator.
Meridian distinguishes primary evidence, analysis and interpretation. Every consequential claim should be inspectable at its origin.
Live where it matters. Sourced everywhere else.
Back to live snapshot ↑Market data by CoinGecko. Network data by mempool.space. Historical entries link to primary records.