Humanity Protocol is a sybil-resistance network of blockchains that will onboard the first billion humans. Humanity Protocol provides developers with unique-human authentication mechanisms, and users complete ownership over data and identity. Humanity Protocol is the human layer for Web3. This protocol uses cutting-edge palm recognition technology, as a less invasive identity verification alternative to methods like iris scans, and is easily accessible through smartphones, to establish Proof of Humanity in Web3 applications.

Billions Network is a digital identity verification platform designed to offer a future where humans and AI can trust each other, including Sam Altman’s crypto project, World. The platform, which utilizes zero-knowledge proof tech, seeks to provide a scalable and secure method for verifying both human and AI identities.

Intuition provides decentralized infrastructure, developer tools, and applications enabling the creation of an open, flexible knowledge graph enhancing the quality and availability of social knowledge. Intuition lets users create attestations about any subject, storing the information in such a way that it's easily navigable, queryable, and leveraged by other applications. Intuition's protocol and middleware allow developers to easily integrate the company's attestations and knowledge graph into their own applications.

Demos is a platform that provides secure digital identity verification using OnlyMeID, aiming to achieve privacy and authenticity through unique user identities, preventing sybil attacks, supporting community airdrops, and more.

TNA is a naming protocol for Bitcoin designed to improve its usability and broaden its array of assets and primitives. Supporting multiple assets, TNA seamlessly integrates with all Bitcoin layer 2 solutions. It utilizes its DA framework, known as the TNA Core, to boost the mainnet’s capacity for managing cross-chain interactions and improving network interoperability.

PLANET uses the blockchain to address pressing social and sustainability challenges, support the UN SDGs and create a more transparent and sustainable future. PLANET is using the power of celebrity and fandom to mobilize the world to address global challenges, with the world’s biggest celebrities backing sustainability projects dear to them through the platform. PLANET wants to move the sustainability space from short-term funding to viable long-term revenue streams that can power campaigns for a better future.

The Ethereum Name Service (ENS) is a distributed, open, and extensible naming system based on the Ethereum blockchain. Its purpose is to map human-readable names like 'alice.eth' to machine-readable identifiers such as Ethereum addresses, other cryptocurrency addresses, content hashes, and metadata. ENS also supports 'reverse resolution', enabling Ethereum addresses to be associated with metadata such as canonical names or interface descriptions. ENS has similar objectives to DNS, the Internet's Domain Name Service, but has a significantly different architecture due to the capabilities and constraints provided by the Ethereum blockchain. Like DNS, ENS operates on a system of dot-separated hierarchical names called domains, with the owner of a domain having full control over subdomains.

Holonym is a privacy-preserving passport for Web3. It enables users to perform anonymous "KYC" and prevent Sybil attacks. It is also constructing the necessary infrastructure for decentralized wallet recovery.

Polygon ID is a blockchain-native identity system with programmable privacy that empowers people and enables the creation of trustworthy interactions with web3 services. Privado ID enables the exchange of cryptographically secure verifiable credentials, adhering to W3C open source identity standards and integrating seamlessly with any EVM compatible blockchain.

XSTAR, the Omnichain Identity Protocol for Proof of Humanity, features an adaptive humanity scoring system that securely and privately authenticates individual.

PoP Planet (PoPP) is a decentralized application (DApp). Users can create unique digital identities through the platform. And use these identities to manage on the blockchain to ensure security and transparency. In addition, the platform also uses AI technology enhancements to improve the user experience.

PolyFlow is an AI-driven modular protocol for crypto-asset operations. PID (Web3 Payment ID) is a decentralized identity solution built through zero-knowledge proofs for decentralized identity authentication. Combined with modular design and A.I. focused data structure, its goal is to ensure partners a secure, safe, cost effective, and compliance friendly infrastructure to take full advantage of PayFi and asset operations.

Kudo Money is an identity passport for Metaverse and Web3, where good citizens are rewarded for good on-chain behavior. The higher the on-chain reputation, the more access to borrowing, airdrop, and farming opportunities.

Human Passport is a tool that allows users to present evidence that they are real, unique humans and signal their trustworthiness to apps. It is a way to collect and present data without exposing it or giving up ownership. Under the hood, it is a unique decentralized identifier (a DID) associated with Ethereum address, stored on the Ceramic network.

Y is the Crypto Super App that empowers you to privately build, manage, and benefit from your digital identity built on Ethereum. The strong Y Passport score will provide the future visa-free access to the digital world.

Starknet.id is an identity and naming service for Starknet. Users can mint a Starknet identity for free and connect it to their Twitter, Discord, or GitHub account.

SPACE ID is building a universal name service network with a one-stop identity platform to discover, register, trade, and manage web3 domains. It also includes a Web3 Name SDK and API for developers across blockchains, providing a multi-chain name service for everyone to easily build and create a web3 identity.

zCloak Network is a privacy-first decentralized identity (DID) and verifiable computation infrastructure. It aims to deliver the Web3 dream of Self-Sovereignty by moving both the storage and the computation of user data from centralized servers to user devices. The integrity of user computation is proven by a STARK-based zero-knowledge virtual machine (ZK-VM) in a browser extension. zCloak's World Wide Web Consortium (W3C) compatible DID system can mirror real-world legal status and reputation in decentralized social networks (DeSoc). With zCloak Network, people can use their real-world data for applications such as decentralized finance (DeFi), identity, and biometrics without compromising their privacy.

AllDomains is a Web3 platform to create, register, and trade customizable Web3 Identities for .everyone. With AllDomains any user can choose not only a name they desire but also the community they wish to associate with, adding a new layer of customization to their Web3 identity. Be it a Token, an NFT collection, or a DAO, everyone can create their own TLD and unite their whole community under a unique brand.

BLIFE's vision is to lead the adoption and growth of Web3 on Bitcoin, utilizing $BLIFE to revolutionize the ordinals and Bitcoin fungible tokens ecosystem from being niche and complex to valuable and accessible. This vision spans DEFI, gaming, entertainment, and education, with $BLIFE as a key governance token.

D3 is a next-generation domains company building interoperable web2<>web3 domain names. Its goal is to empower and offer secure, decentralized identities, with domain names at the forefront.

OpenPassport is a digital identity powered by zero-knowledge technology. OpenPassport lets users scan the NFC chip in their government-issued passport and prove the validity of their ID anonymously.

Clusters is a multi-chain name service designed to solve problems such as address fragmentation, wallet management complexity and domain name preemption. It is launched by Delegate in partnership with cross-chain interoperability protocol LayerZero.

GoDlD is a DID marketplace aggregator focusing on all categories of DIDs with its core functions being bulk search, registration, transaction & management of DIDs.

Tuum is a software engineering company dedicated to building decentralized identities that benefit all of humanity. Its definition is derived from the Latin "yours". Tuum weaves decentralized identity into a new web application layer, empowering developers to build while maintaining the integrity of the image.

AZERO.ID is the official domain name service for Aleph Zero. It will be keeps user wallets and transactions fully private.

Reclaim protocol, which allows for computationally efficient, secure and private generation of proofs of provenance (PoP) completely on client side that users can then share to any third-party. Furthermore, users can generate zero-knowledge proofs of features of their data to avoid sharing sensitive information. Reclaim also describe a decentralized extension of the protocol that eliminates the need to use any trusted parties, by implementing an economic mechanism to incentivize honest behavior.

The idOS, AKA Identity Operating System, is an open-source, composable and interoperable solution designed to serve as the identity layer of web3. Built on the principles of chain-agnosticism, compliance, self-sovereignty and decentralization, the idOS empowers users to own, manage, and securely store their identity data.

Sonic Name Service 是基于 Sonic 区块链上的去中心化、用户友好的域名系统。SNS 将使用户能够将人类可读的名称（以 、 结尾）映射到区块链地址、智能合约、网站等。

BlastDomains is a project focused on building a universal name service network and a comprehensive identity platform for web3 domains. Built and funded by POH (Proof Of Human) Venture Capital.