The Bitcoin Atlas
All Blocks
block#74,638
Incident8/15/2010

#74,638

The value overflow bug block

Mined
8/15/2010, 6:33:59 PM
Reward
50 BTC
Fees
0 BTC
Difficulty
511.77
Block hash

000000000069e1affe7161ab4bcbeacebb4ddf155b50e807f42de971b688a09b

000000000069e1affe71…e807f42de971b688a09b

Block 74,638 contained a transaction that exploited a value overflow bug, creating 184,467,440,737.09551616 BTC in two outputs. Within hours, Satoshi and developers coordinated a soft fork to invalidate the block — Bitcoin's first and only inflation bug, fixed by consensus.

Key People

Related Events