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.

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.

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.

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.

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.

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.

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.

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.

The InterLink Network is a decentralized infrastructure designed to support a global Human Network. Using face scanning and liveness detection, users verify their identity without exposing personal data, and become Human Nodes that help secure and maintain the integrity of the Human Network. Unlike traditional blockchains where wallets are anonymous and easily replicated, InterLink binds each identity to a real human — enabling sybil resistance, fair coordination, and trust-based applications across Web3.

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.

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.

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.

IOPn is a global technology company based out of the UAE, powering frameworks for movement, identity, opportunity and ownership in the digital age. The IOPn ecosystem runs on OPN Chain, our purpose-built next-generation Layer 1 blockchain infrastructure. Blazing fast, secure and scalable, OPN Chain is a network that is uniquely designed to support both digital and physical applications at scale.

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.

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.

Decert.me is a Web3 education and certification platform incubated by the @UpchainDAO. The platform combines AI and blockchain to help developers better learn and build their own on-chain credit history.

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.

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.

Established in 2021, d.id is a pioneer in decentralized identity (DID) systems. The company provides an array of DID-based solutions aimed at promoting community building and digital identity. Their product lineup includes .bit, a barrier-free DID issuance platform for communities and also a DID system for individuals; Voty, the first DID-based community governance system; SoulFrag, the first DID-based reputation management system; and d.id Profile, a DID-based profile for users to showcase milestones and accomplishments. With about 280,000 registered accounts and integration with more than 140 wallets and dApps, d.id is committed to building a trusted and inclusive DID ecosystem.

Solo is the next-generation AI-native backend for Sybil resistance through continuous, privacy-preserving biometric verification. Its mission is to establish a decentralized “One Person, One Account” (1P1A) architecture that leverages advanced machine learning models and cryptographic tools to verify humanity with minimal data exposure. It aims to empower both Web3 and AI ecosystems by enabling more trustworthy user interactions and high-integrity data pipelines.

Clique is building identity oracles that connect web2 user behavior data with web3 applications. It leverages advanced cryptographic tech like ZKP, TEE, and MPC to develop modular solutions with customizable privacy assumptions. Its main products are designed to help protocols, creators, and brands identify high-value users/fans, perform Sybil-resistant checks and distribute incentives accordingly.

Metadium is an ecosystem built on a public identity blockchain, aiming to create a free world through self-sovereign identity.

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.

Firefly is a all in one social app for mobile phones. Combining elements of Web2 and Web3, it uses DIDs to create a seamless, secure, and diverse social experience. Users can access and interact with social content from both Web2 and Web3 platforms, such as a portal to the Lens Universe and a portal to the Farcaster Universe. The project was developed by Mask Network.

Plug is a browser and mobile crypto wallet, as well as an identity and authentication provider, for the Internet Computer.

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。

Karat Network is a decentralized data identity protocol that offers an bilateral service data marketplace to help users take control of their web2 and web3 data while earning rewards. With its decentralized data identity protocol, Karat Network, users can own, control and manage their data, while enjoying the benefits of a permissionless and secure data trading platform. Our vision and goals are centered around empowering the users to take control of their digital identity and data, providing a secure and decentralized platform for data trading, and encouraging the development of dApps on top of its decentralized data identity protocol.

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).

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.

PolkaDomain is a DNS and NFT marketplace built on Polkadot, providing decentralized domain name services. Users can take control of their digital identity and data with PolkaDomain, and claim and save unique domains as NFTs.