Bitcoin Atlas

Meridian 2140
Context for understanding Bitcoin

Meridian 2140 is a public educational and reference website about Bitcoin. It connects protocol rules, history, security, economics and people so readers can follow their relationships.

Atlas entriesGenesis Block → ~2140  
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₿Bitcoin price
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#Hashrate
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BTC NEWSDate not provided

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Open news desk

Selected headlines from newsrooms, developers and institutions. Articles and excerpts remain in the original source language; the language choice changes the interface. Every link leads to the publisher.

01 Explore the connected entries

Bitcoin Atlas
Connected knowledge

The editorial methodology requires sources suited to each claim, a distinction between facts and interpretation, and acknowledgment of uncertainty. An author's authority or a source's inclusion alone is not proof of accuracy.

02 QUESTIONS PEOPLE ACTUALLY ASK

Bitcoin guides: from questions to verification.

Do I need to buy a whole bitcoin? How does a wallet work, and what should I back up? Choose the topic you are dealing with right now. The guide will take you through the answer step by step, explain important limitations and link to sources and related Atlas entries.

03 Bitcoin history

Bitcoin history: documents, people and milestones

Connect cypherpunk ideas and digital-cash experiments with the 2008 Bitcoin Whitepaper, the 2009 Genesis Block and later events.

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Security

Ledger describes an attack using hidden components in wallets

Ledger publishes findings from its investigation: attackers bought genuine devices, fitted hidden electronics inside them and put them back on sale through resellers in Southeast Asia. The added components were designed to capture the Seed Phrase—the words used to restore a wallet—during initial setup, enabling the attackers to steal funds. The manufacturer says the attack did not exploit a flaw in its chip, operating system or servers. It asks resellers to suspend sales in Southeast Asia and Hong Kong and tightens stock and returns handling. The case shows why a device’s journey to its owner matters too.

04 PLACES · COMMUNITY MAP

Where bitcoin is accepted.
Find a place and check its terms.

Community-maintained BTC Map shows places recorded as accepting bitcoin. Meridian 2140 embeds an external map; it does not verify every business or guarantee that you can pay.

Open BTC Map

The USD price comes from CoinGecko or Coinbase; block height and estimated Hashrate come from mempool.space or Blockchain.com, depending on availability. Data may be cached and have different measurement times. The time above marks receipt of the last successful response, not the measurement time of every value. Estimated Hashrate is not a direct measurement; the price is not a trade offer and a public API does not replace verification with your own node.

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