Proof of Humanity - Registry of Verified Humans

The Internet
Of Humans

A decentralized, sybil-resistant, list of humans.

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Proof of Humanity illustration for the hero section

Use Cases

Proof of Humanity enables verified human identities, enhancing security, fairness, and trust across applications.

Self-Sovereign Identities

PoH accounts enable seamless logins for dApps, recognizing verified users without extra registration.

Online Voting & Governance

PoH ensures that only verified humans can participate in online voting and governance, preventing Sybil attacks and fake identities from influencing decisions.

Fair Airdrops

PoH ensures fair airdrops by verifying real individuals and eliminating bots and duplicate claims.

Certifications

PoH guarantees the legitimacy of certifications by linking them to verified individuals, preventing fraud and credential forgery.

Credit Scoring

PoH enables equitable credit assessments by verifying real people, ensuring fairness, transparency, and inclusion in financial systems.

Social Media

PoH eliminates spam, bots, and trolls by ensuring only verified humans engage on social media, fostering a safer and more authentic online community.

Discover even more possibilities and explore how Proof of Humanity can enhance your project!

View All Use Cases

How Proof of Humanity Works

Submit Your Profile

Verify your identity and join the Proof of Humanity list in a few simple steps.

START

Submit your Profile

Provide your name, photo, and a short video to create your identity profile.

Lock a Deposit

••••

Receive a Vouch

Vouching

Alice

0x4567...1234

Vouching

Verification

Alice

0x4567...1234

Verification

If the profile passes without being challenged.

Included

Alice

0x4567...1234

Included

🎉 Congrats! 🎉

Your profile is Included in
the PoH list of humans

Challenge Suspicious Profiles

Earn rewards by maintaining registry integrity through successful challenges of rule-violating profiles.

Identify & Challenge a Suspicious Profile

If you spot a profile that seems fraudulent, you can challenge it for review.

Verification

Bear Bot

0x1234...4567

Verification

Challenged

Bear Bot

0x1234...4567

Challenged

Dispute Resolution via Kleros Court

The case is sent to Kleros, where an independent panel of jurors evaluates the profile against registry policies.

Included

Rejected

Read our step-by-step registration tutorial on Gitbook to ensure a smooth registration process!

Registration Tutorial

IntegrateProof of Humanity into Your Project

Whether you're building a governance platform, distributing tokens, or developing innovative Web3 solutions, PoH strengthens your system with decentralized, human-centric identity verification.

Integration note

Use Cross-Chain Proof of Humanity contract for integrations.

Do not read human status from the main Proof of Humanity contract.

interface ICrossChainProofOfHumanity {

// Returns true when the account has a valid humanity.

function isHuman(address account) external view returns (bool);

// Returns the humanity ID owned by the account.

function humanityOf(address account) external view returns (bytes20);

// Returns the current owner of a humanity ID.

function boundTo(bytes20 _humanityId) external view returns (address);

// Returns true when the humanity ID is claimed on any supported chain.

function isClaimed(bytes20 _humanityId) external view returns (bool);