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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

Unstoppable Domains is onboarding users to the decentralized web with easily-readable blockchain domain names. These domain names are the standard for sending and receiving cryptocurrency. They are pioneering Web3 by enabling decentralized websites that give users control over their data and digital 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.

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.

Decent.land is a set of Web3 social protocols for identity, DAO governance, and social networking. Built on Arweave, it stores all data on-chain, making it immutable and permanent. Arweave Names Service (ANS) is an identity and social metadata protocol built on Arweave and serves as the username layer of decent.land, as well as a human-readable proxy for wallet addresses, supported by ViewBlock. Ark is a multichain identity linking protocol that powers decent.land, ANS, and any other applications that rely on users attesting to their identity on other chains. ar.page is a web app that renders ANS metadata in a page displaying user profiles, and aggregates a feed of activities over the Arweave network (Ardrive, Koii, Permacast, etc.).

Polkadot Name System (PNS) is a Decentralized Identifier (DID) infrastructure for Polkadot, which uses unique .dot domain names to replace long, meaningless, unreadable, and forgettable addresses. PNS can bind different addresses in a multi-chain ecosystem, bringing together fragmented identities so that users can present themselves more comprehensively. PNS links Web2/Web3 and integrates on-chain and off-chain data, enhancing the interactive experience of gaming, social, DAO, community governance, and more.

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.

Masca enables everyone to build their decentralized and self-sovereign identity by enhancing MetaMask with functionalities to manage DIDs, VCs, and VPs. Any website can connect to it to access identity data.

vSelf is a web3 identity platform designed for growth hacking and community engagement. It aims to give users full ownership of their personal data and bring the benefits of blockchain technology to enterprise data management. vSelf provides a user-centric solution with key features such as encrypted distributed storage for personal data, identity and credential management, and the ability to trade data with other participants and service providers.

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

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

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.

Urbit is a peer-to-peer computer network that runs an operating system (OS) with the aim of giving users digital autonomy. Urbit consists of two pieces of technology: a Peer-to-Peer Computer Network (Urbit ID), which is a distributed identity and public key infrastructure (PKI) for general-purpose authentication; and an Operating System (Urbit OS), which is a virtual computing platform built from the ground up. It is completely isolated from the system it runs on, similar to Web Assembly (WASM) or the Java Virtual Machine (JVM).

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.

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.

Spaces is a naming protocol that leverages the existing infrastructure and security of Bitcoin1 without requiring a new blockchain or any modifications to Bitcoin itself. “Spaces” serve as community identifiers that are distributed through an auction process built using existing Bitcoin scripting capabilities. Proceeds generated through auctions are irrevocably burned. Within each Space, users can create “Subspaces,” which serve as trustless individual identities, operating with a high degree of autonomy primarily off-chain but can also submit transactions directly on-chain.

SelfKey is a blockchain-based self-sovereign identity ecosystem that empowers individuals and companies to gain more freedom, privacy, and wealth through the full ownership of their digital identity. SelfKey provides an identity wallet, with which individuals and companies can securely control and manage their personal data, manage their cryptocurrency portfolio, and easily and painlessly onboard onto financial, immigration, and cryptocurrency-related services. SelfKey makes KYC (Know Your Customer) simple and easy, providing access to hundreds of products and services. Relying parties, certifiers, and identity owners can transact securely, privately, and in a decentralized manner.