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In 2010, an American developer launched a promotional website and gave users 5 bitcoins daily in exchange for solving a Captcha test.
In 2010, it was possible to earn 5 bitcoins daily just by solving a simple Captcha test. This initiative was launched by American developer Gavin Andresen through a site he called "Bitcoin Faucet." He initially deposited 1,100 bitcoins from his own funds, and then some of the early miners contributed to refilling the site after the initial balance ran out. The goal was not profit-driven or promotional, but rather an attempt to spread the idea and introduce people to a new cryptocurrency that no one could have imagined its future value.
A Captcha test is an automated method to distinguish between humans and machines, where the user is typically asked to type letters or numbers that appear distorted in an image. The aim is to ensure that the person using the site is a real person and not a bot trying to exploit the system. Thanks to this mechanism, anyone who entered the site would solve the test and immediately receive five bitcoins.
Over time, the site distributed approximately 19,700 bitcoins for free, worth more than $2.215 billion today, to ordinary users who only spent a few minutes solving Captchas. At that time, these coins were nearly worthless, but today they are worth millions of dollars and represent a massive fortune for those who held onto them.
Source: Cointelegraph.
