The Worldcoin Blog

The thinking, ideas, and technology behind a more human economic system.

Worldcoin, August 04, 2023

Worldcoin Privacy FAQs

Answers to some of the most frequently asked questions relating to privacy and the Worldcoin project.

Worldcoin, September 30, 2023

Five important potential applications of Worldcoin

If the Worldcoin project is successful, it could improve many digital interactions that are currently not possible on a global scale.

Announcements, September 24, 2023

World ID sign-ups in Chile exceed 1% of the population

More than 200K people have verified their World ID in Chile as demand grows following the Worldcoin project launch in July.

Announcements, September 18, 2023

New World App update slashes load on Optimism by two thirds

Worldcoin, September 09, 2023

What is an iris code, and how does it preserve privacy?

Worldcoin, September 04, 2023

How to reserve WLD tokens

Announcements, September 03, 2023

International engagement scales to meet global interest in Worldcoin

Announcements, August 31, 2023

Demand for World ID leads to single day sign-up record in crypto-forward Argentina

Worldcoin, August 30, 2023

Regulatory compliance, personal privacy and equitable access with Worldcoin

Worldcoin, August 17, 2023

Intro to zero-knowledge proofs, Semaphore and their application in World ID

Worldcoin, August 12, 2023

How to build with Worldcoin

Announcements, August 06, 2023

Launch week sets records for Worldcoin community, World ID sign-ups

Worldcoin, July 28, 2023

Worldcoin protocol security audit reports

Announcements, July 24, 2023

Worldcoin project launches

Announcements, July 24, 2023

Worldcoin begins rollout of 1.5K Orbs to meet global demand for World ID

Worldcoin, July 24, 2023

Introducing Worldcoin: A letter from Alex Blania and Sam Altman

Product, July 20, 2023

The wait is over: Worldcoin’s World ID SDK now publicly available

Announcements, July 20, 2023

Worldcoin completes migration to OP Mainnet

Worldcoin, July 14, 2023

World App FAQs

Announcements, July 13, 2023

Worldcoin passes 2 million World ID sign-ups as demand increases

Announcements, July 06, 2023

Talent Protocol becomes first web3 platform to integrate World ID in Europe

Announcements, July 04, 2023

Worldcoin expands World ID access in Spain in response to AI boom

Announcements, June 29, 2023

Worldcoin launches World ID sign-ups in EU’s largest economy, Germany

Announcements, June 29, 2023

“Sign in with Worldcoin” is now available on Okta’s Auth0 Marketplace

Worldcoin, June 19, 2023

A look at iris biometrics: From Optic ID to World ID

Worldcoin, June 15, 2023

Key takeaways from Worldcoin’s Seoul meet up with Sam Altman and Alex Blania

Worldcoin, June 08, 2023

The Orb FAQs

Engineering, June 05, 2023

Iris recognition inference system

Worldcoin, June 04, 2023

The story behind the new Worldcoin logo

Worldcoin, May 27, 2023

World ID FAQs

Product, May 23, 2023

Composability on World App: The protocols powering Worldcoin’s first wallet

Worldcoin, May 17, 2023

How to sign up for World ID and use World App

Announcements, May 11, 2023

Worldcoin commits to Optimism’s Superchain vision ahead of mainnet launch

Announcements, May 08, 2023

Introducing World App

Announcements, May 06, 2023

The Worldcoin Orb is going on tour globally. Here’s where to find one

Worldcoin, May 03, 2023

Designing the Orb: The universal value of simplicity

Worldcoin, April 30, 2023

Hackathon recap: The Worldcoin Orb visits Japan

Engineering, April 26, 2023

Iris feature extraction with 2D Gabor wavelets

Worldcoin, April 14, 2023

Proof of personhood: What it is and why it’s needed

Announcements, April 06, 2023

Worldcoin and ETHGlobal: The road to Tokyo

Worldcoin, April 03, 2023

All about entropy: Why irises beat faces and fingerprints for proving personhood

Engineering, March 31, 2023

Humanness in the Age of AI

Engineering, March 23, 2023

Biometric performance at a billion person scale

Announcements, March 14, 2023

Introducing World ID and SDK

Worldcoin, February 24, 2023

Debunking the most common myths about Worldcoin

Announcements, February 23, 2023

In Portugal, Worldcoin sign-ups surpass 1% of the population

Engineering, February 23, 2023

An introduction to zero-knowledge machine learning (ZKML)

Worldcoin, February 16, 2023

A primer on decentralization at Worldcoin

Developers, February 10, 2023

Privacy at Worldcoin: A Technical Deep Dive - Part I

Worldcoin, February 09, 2023

What is Worldcoin, and how does it work?

Worldcoin, February 07, 2023

What is a Worldcoin Operator, and how can I become one?

Worldcoin, January 27, 2023

Understanding the Orb and why Worldcoin uses biometrics

Engineering, January 27, 2023

Opening the Orb: A look inside Worldcoin’s biometric imaging device

Announcements, January 13, 2023

Worldcoin has passed 1 million sign-ups. Here’s what’s next

Worldcoin, January 10, 2023

Solving for privacy: Our approach to keeping information safe

Engineering, November 07, 2022

Why Worldcoin Is Contributing to EIP-4844 development

Developers, April 22, 2022

Privacy-Preserving Proof-of-Personhood Protocol

Worldcoin, October 21, 2021

How the Launch Works

Worldcoin, October 21, 2021

Introducing Worldcoin