# PoW

By [Drotree](https://paragraph.com/@drotree) · 2021-12-23

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    Proof of Work (PoW - Proof of Work) is basically a protocol for the prevention of attacks aimed at disrupting the functioning of a system and unwanted messages sent by e-mail called Spam. The Proof of Work protocol originated in a 1993 paper by computer experts Cynthia Dwork and Moni Naor. By 1999, it was included in the literature with the efforts of researchers named Markus Jakobsson and Ari Juels.

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*Originally published on [Drotree](https://paragraph.com/@drotree/pow)*