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BTC facts & stats

7 fact-checked facts about Bitcoin (BTC) basics: how it works and its history, each with the reason behind it. 5 more are in today's round and join this page after it closes.

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The basics

Bitcoin records transactions on a public ledger called what?

AnswerBlockchain

The blockchain is a chain of blocks of transactions.

What is the maximum number of bitcoins that will ever exist?

Answer21 million

The protocol caps total supply at 21 million.

Going deeper

What is the smallest unit of bitcoin called?

AnswerSatoshi

The satoshi is named after Bitcoin's creator; wei and gwei are Ethereum units.

How many satoshis make one bitcoin?

Answer100 million

One bitcoin is divisible into 100,000,000 satoshis.

The Bitcoin white paper was published in which year?

Answer2008

It was released on 31 October 2008.

Expert level

On 'Bitcoin Pizza Day' in 2010, how many bitcoins were paid for two pizzas?

Answer10,000

Laszlo Hanyecz paid 10,000 BTC for two pizzas on 22 May 2010.

A Bitcoin halving happens every how many blocks?

Answer210,000

2,016 blocks is the difficulty adjustment period, not the halving interval.

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