Proof-of-Brain  用脑袋挣钱

Compared to other blockchains, Steem stands out as the first publicly accessible database for
immutably stored content in the form of plain text, along with an in-built incentivization mechanism.



https://steem.io/steem-bluepaper.pdf

 This stems from two new token features.


The first is a pool of tokens dedicated to incentivizing content creation and curation (called the
“rewards pool”).

The second is a voting system that leverages the wisdom of the crowd to assess
the value of content and distribute tokens to it