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In the evolving landscape of Web3, one emerging idea is the Human Node – a concept where each participant in the network is represented by a unique human individual rather than by arbitrary accounts or large token holdings. This idea is closely tied to proof of personalhood (also called proof of personhood), a mechanism to verify that each network participant is a real, unique person. The goal is to build decentralized systems that are fairer and more resistant to bots and fake identities. This article explores what Human Node means, why proof of personalhood is needed in Web3, and how projects like Interlink implement these ideas. What Is a “Human Node” in Web3? A Human Node refers to a node in a decentralized network that is tied to a single real human identity, ensuring one-person-one-node participation. In traditional blockchains, consensus and influence are often based on computing power (Proof of Work) or stake in tokens (Proof of Stake). A Human Node system, by contrast, gives equal weight to each person, aiming for a more democratic network. For example, the project Humanode (notice the combined name) is a Layer-1 blockchain that uses biometrics to ensure each node is a unique living person. Humanode’s approach is to have users “stake” their biometric data (such as a 3D face scan) to create a node, using cryptographically secure face matching and liveness detection to prevent duplicates. In this way, every node in the network represents one human, and every human node has equal voting rights in governance, rather than power flowing to those with more tokens or hardware. If a node acts maliciously, it can be blacklisted to maintain network integrity.