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.

SNS is the user identity infrastructure layer on Solana. The .sol domain name can be used as your payment method, web3 username, and on-chain identity.SNS is building a composable and interactive web3 identity to help anyone anywhere connect to each other with an intuitive and user-friendly omni-chain experience.

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.

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.

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.

Based on the modular multi-dimensional fusion blockchain underlying technology—ME (Meta Earth) Network with high performance and unlimited scalability, Meta Earth supports the high-concurrency big data processing needs of traditional industrial applications. And through encrypted DID (Decentralized Identifier) system—ME ID & ME Pass which can effectively protect user privacy data.

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

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.

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.

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.

Ordict is a next-generation system for digital credentials on Bitcoin, introducing the Soulbound Inscription Protocol. This ensures tamper-proof and verifiable achievements, loyalty programs, professional certifications, community memberships, 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.

XBorg is the data and credential network powering the next generation of gaming. It empowers gamers to create their gaming digital identity through a credential network and paves the way for a new generation of enhanced gaming applications and use cases.

NFT3 is an Unified Decentralized Identity and Credit Network for Web 3.0. NFT3s will become a direct monetization path for individuals to associate value on their terms with various aspects of their data journeys through life with different projects, individuals, social networks, companies, and institutions. NFT3 will allow users to create a unified identity that they can then associate with any Web 3.0 application. This is achieved by creating an NFT that the user owns, and wrapping it in DIDs, or Decentralised Identifiers, which can travel across the web but always return to the owner’s NFT3.

Linea Name Service (LineaNS) is an omnichain naming service on Linea. The project was initiated by domain registrar Star Protocol.

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.

Webmi builds game ID through smart contracts, captures the user’s on-chain data based on blockchain technology, authenticates user assets and provides certificates, gives more value to the assets of web3 users. Webmi builds the users’ resumes on the blockchain by setting up ID system, user behavior capture mechanisms, EXP, and the reputation system.

Self Labs is building a scalable trust layer for the internet that puts privacy first. Focused on proving users’ identity and unique attributes without revealing personal data, the company’s open-source platform with Self Pass & Connect offers secure, decentralized verification for millions of users by leveraging zero-knowledge proofs and electronic passport NFC technology. Self Protocol supports global passport (174+ countries) and compliance standards necessary for a thriving digital economy.

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.

Nametag is a decentralized identity platform that enables users to take ownership of their digital identities and interact in new ways. Nametag is a social profile that allows users to showcase their digital collections and accomplishments on the platforms they use the most. This is powered by the Nametag Web Extension, which enables users to preview verified credentials (Nokens) and badges collected by other users. Nokens represent a person's actions online, including in-game rankings and assets, notable followers, and community involvement across the Internet. Users can create galleries of their collectibles, achievements, and badges that will appear across all of the Nametag supported apps. To begin, users will be able to view each other's Nametag profiles directly on YouTube, Twitter, and Discord.

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.

Galxe is a decentralized super app and onchain distribution platform. Through its robust infrastructure and product suite of modular AI, digital identity, and blockchain solutions — Quest, Passport, Score, Compass, and Alva — Galxe supports the development of advanced, user-friendly applications with an emphasis on web3 exploration and self-sovereign digital identity management. G is the native token on Gravity and the utility token for both Gravity and the Galxe ecosystem.

Heima Network is a Layer 1 blockchain designed to achieve multi-chain and cross-chain interoperability. Heima is developed from the Litentry network and integrates core modules such as identity management, security, and privacy. Building on these foundations, Heima introduces an intent-based execution system, enabling frictionless cross-chain transactions across major ecosystems like Ethereum, Solana, and Polkadot.

Humanode is a crypto-biometric network where one human equals one node, providing Sybil resistance and innovative governance models to the crypto industry through biometric technology. Humanode aims to make node creation simple and enable any human to privately verify their unique existence in any digital service.

Lifeform is a decentralized visual digital identity (DID) solution provider. Its core technologies include: hyper-realistic 3D avatar creation tools; visual DID protocols; secure and innovative contract solutions; decentralized identity systems for Web3 avatars; metaverse engine software development kits (SDKs).

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.

KILT is a blockchain-based identity protocol for issuing self-sovereign, anonymous, verifiable credentials and decentralized identifiers.

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.

Hypersign is a decentralized identity layer for the internet, giving users control over their personal data and identity while enabling digital trust for businesses.