Learn Center is a resource for understanding how the Internet can stay human in an increasingly automated world. As the line between artificial intelligence and authentic human interaction blurs online, this resource helps define and explain various concepts and technologies, including but not limited to biometrics, digital and crypto assets, blockchain, Proof of Human and privacy preserving tools.
Whether you are a newcomer to these topics, an early adopter of Proof of Human tools like World, a developer building sybil-resistant applications or a privacy advocate curious about biometric anonymity, we break down the complex systems that will help keep the Internet human.
Not sure about a term? Find definitions for common concepts in our Glossary.
Proof of HumanExplore Proof of Human technologies for verifying real, unique people online in the age of AI, deepfakes and sophisticated bots.
CAPTCHA alternatives tell humans from bots without puzzles. Learn how honeypots, behavior analysis, codes and Proof of Human work and where each is weak.
Human-first verification confirms a real, unique human is present in AI systems. Learn how Proof of Human works, where it is used today and its limits.
What is an AI face swap? A complete guide to how the technology works, the risks and how World ID helps you prove you are a real human.
BlockchainExplore blockchain infrastructure for secure, permissionless verification, including Ethereum, Proof of Stake and smart contracts.
What is a smart contract? A complete guide to how smart contracts work, real-world use cases, pros and cons, and how World ID brings trust to smart contracts.
Blockchain authentication verifies access with cryptographic keys on a blockchain, not passwords, and covers how it works, where it is used and its limits.
Bridges help Web3 users transfer crypto between blockchains, but they're a major target for hackers. Here’s what you need to know about crypto bridge hacks.
Privacy & AnonymityExplore privacy-preserving technologies, anonymity and cryptography, including Zero-Knowledge Proofs (ZKP), MPC and data protection design.
Prevent bots on your site with layered defenses that spot automated traffic, reduce fake accounts and use Proof of Human to confirm a real person is present.
AI identity theft uses artificial intelligence to impersonate people or create deepfakes for fraud. Learn how AI identity theft works, where it occurs and how to stay safe.
Digital & Crypto AssetsExplore crypto and digital assets including stablecoins, governance tokens, wallets and security risks in the AI economy.
What is an altcoin? A complete guide to altcoin types, the risks, the top altcoins by market cap and how Worldcoin fits into the broader crypto network.
A seed phrase is the master backup for a crypto wallet. Learn what it is, how it works, why it matters and how to keep yours safe.
A crypto wallet stores the keys that control your digital assets. Learn how crypto wallets work, the main types and how to keep yours secure.
Browse case studies and get inspired by what you can do with World.
The Human Badge is a signal to the community that this person can be trusted to be a real and unique human, with that trust, users feel more comfortable starting a conversation.
Tomoaki Umeki
Head of Tinder, Japan
Case study
Case study
Case study
Explore definitions for the most important terms related to World ID, World App, digital identity, AI, privacy, and blockchain technology.
Introduction to World & World ID
Introduction to World ID
How World ID can be used
Privacy
Data Custody
Getting started with World ID
