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Proof of HUMANity

Bot protection for decentralized applications and networks

The first bot
blocker for
Proof of HUMANity is a plug-n-play solution to the prevention of bots at scale, to keep DApps and exchanges – and the blockchains on which they’re built – secure.

For DApps

Robust bot protection ensures DAppsare afforded the same protections asoff-chain solutions.Radically improve application security,and protect user privacy.

For Blockchains

Each DApp interaction initiates averification, which produces a transaction.Deployed at scale across multiple DApps,PoH significantly increases on-chaintransaction volume.

Verify user humanity through CAPTCHAs, and build detailed datasets in the process.

Get more fromDApp users, and give more in return.

How it works


Upon accessing a PoH-integratedapplication – or initiating a transaction –users are prompted to solve a CAPTCHA.


Successful completion of the CAPTCHAproduces an authorization.


HUMAN Protocol verifies the transactionon-chain with the user’s identity.

Developer Resources

Decentralized applications made fairer. More secure. More HUMAN.
A solution to decentralized governance

Proof of HUMANity, as the world’s first on-chain human-verification solution, guarantees that each vote is made by a single verified human. One vote; one individual; fair governance.

Protects against frontrunning

By ensuring transactions are initiated by a verified human, Proof of HUMANity provides a lasting solution to front running on DeFi applications and NFT time-based auctions, and helps preserve network security and integrity.