Ori Pomerantz Ori has been securing IT, and teaching others to do the same, since the start of his career in 1995. In addition to raising seven kids with his wife, he works @optimismPBC and writes about Ethereum on the side.

Stories by Ori Pomerantz

Ethereum Logo With a Bird

Design and build a blockchain social media platform

Let’s design and build an immutable, decentralized blockchain social media platform, called Chirper, that will run on top of Ethereum.

Ori Pomerantz
Sep 6, 2022 ⋅ 10 min read
Black Logo Over Green Background

Security choices and multi-signature wallets

Learn how to make the best design and security choices when setting up a multi-signature wallet and how to avoid common mistakes.

Ori Pomerantz
Jun 29, 2022 ⋅ 11 min read
Blockchain Over Yellow Background with Scattered Numbers

How to build a random number generator for the blockchain

This article explains and demonstrates how to build a random number generator for the blockchain using a Solidity contract.

Ori Pomerantz
Jun 7, 2022 ⋅ 13 min read
Web3 Logo

Improve user authentication with Web3 wallets

Web3 wallets make user authentication trivial. Learn about the challenges of user identification and follow a tutorial on client-side and server-side user identification.

Ori Pomerantz
Mar 24, 2022 ⋅ 7 min read