In 2004, Hal Finney created the first reusable proof of wor…
In 2004, Hal Finney created the first reusable proof of work system before bitcoin. In January 2009, Finney was the Bitcoin network's first transaction recipient.
In 2004, Hal Finney created the first reusable proof of work system before bitcoin. In January 2009, Finney was the Bitcoin network's first transaction recipient.