On 9 January 2009, Nakamoto released version 0.1 of the bitcoin software on SourceForge, and launched the network by mining the genesis block of bitcoin (block number 0), which had a reward of 50 bitcoins.[13][14][15][16] Embedded in the coinbase transaction of this block was the text: "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks",[5] referring to a headline in the UK newspaper The Times published on that date.[18] This note has been interpreted as both a timestamp of the genesis date and a derisive comment on the instability caused by fractional-reserve banking.[19]:18