Mobile wallets are portable and use QR codes for transactions. Desktop wallets offer complete control but are vulnerable to malware. Hardware wallets provide highest security but are mobile-unfriendly
Halving controls Bitcoin supply and inflation rate through block reward reduction. Halvings occur every 210,000 blocks, approximately every four years. Three previous halvings: 2012 (50 to 25), 2016 (25 to 12.5), 2020 (12.5 to 6.25)
Bitcoin was created by Satoshi Nakamoto in 2008 as the first decentralized cryptocurrency. The first bitcoin transaction occurred in 2009 when Nakamoto mined the genesis block. Bitcoin became legal tender in El Salvador in 2021
Bitcoin's maximum supply is capped at 21 million coins. As of December 22, 2024, 19.9 million bitcoins have been mined. New blocks are created approximately every 10 minutes
Bitcoin started with $0.0009 value in October 2009 when Sirius sold 5,050 coins. First real-world transaction was buying two pizzas for 10,000 Bitcoins. Bitcoin's price surged 30 times by June 2011 to $2,471
Online wallets are easiest to start with, similar to bank accounts. Hardware wallets offer highest security, storing Bitcoin offline. Software wallets are safer but require strong computer security. Bitcoin.org tool helps choose wallet based on needs