₿ BTC Atlasa calm guide to a noisy topic
A clear introduction to BTC

Money, rebuilt as an open protocol.

Bitcoin is a way to move value online without asking one company to keep the master ledger. Start here: three ideas, one short journey, zero hype.

For curious humans — no wallet required.
BLOCK / 840,732VERIFIED
hash / 00000000000000000002d5…
timestamp2024.04.20 · 12:09:31 UTC
21Mmaximum bitcoin supply
~10 minaverage time between blocks
2009the network went live
01 / The vocabulary

Three words unlock the whole conversation.

The terms overlap, but they are not interchangeable. Think of them as layers in the same stack.

01

Bitcoin

A digital asset and a payment network. It is designed to work without a central bank or a single company running the ledger.

the network + the asset
02

Cryptocurrency

A broad family of digital assets that use cryptography and distributed networks. Bitcoin is the first and most widely known example.

the category
03

Blockchain

A shared record that groups transactions into blocks and links each block to the last. Anyone can verify the history.

the record
02 / Follow one payment

A Bitcoin payment is a small message that gets checked by a crowd.

No single server has to be trusted. Participants keep copies of the ledger, compare notes and agree on the next page together.

01

Your wallet signs

A private key proves that you are allowed to spend those coins.

02

The network checks

Nodes verify the signature, the balance and that the coins are not being spent twice.

03

Miners order it

Transactions are bundled into a block and secured with proof of work.

04

The ledger updates

Once the block is accepted, every participating copy can catch up.

03 / Watch in English

See the ideas move.

Two calm, visual explainers for the moments when text starts to feel abstract.

3Blue1Brown · 25 min

But how does bitcoin actually work?

Ledgers, signatures, hashing, proof of work and the double-spend problem — drawn out step by step.

Anders Brownworth · 16 min

Blockchain 101 — a visual demo

A friendly visual tour of hashes, blocks, distributed copies and what makes a chain hard to rewrite.

04 / Keep the edges clear

Good questions make better decisions.

“It is anonymous.”

Most Bitcoin activity is pseudonymous and visible on a public ledger. Privacy depends on how a wallet is used.

“The price is the technology.”

Price is one signal and it can move quickly. The protocol is the set of rules underneath it.

“A wallet stores coins.”

A wallet stores keys. The network records balances and ownership on the ledger.

Take the next step when you are ready.

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