15 years ago, on January 12, 2009, Satoshi Nakamoto sent the first transaction on the Bitcoin network to Hal Finney.

According to Finney, Satoshi's identity was a mystery to him - he assumed that he was dealing with "a young man of Japanese descent, very intelligent and sincere."

Describing his experience in 2014, the developer regretted his initial low interest in BTC:

“After a few days, Bitcoin was working pretty stable, so I stayed online. These were the days when the difficulty was 1 and you could mine on a CPU. In the following days, I mined a few blocks, but turned off the computer because it was getting hot and the fan noise was annoying me.”