Privy is a platform providing authentication and key management tools for onboarding users to web3 applications. It offers embedded wallets, account abstraction, and interoperability features to enhance user experience across multiple blockchain networks.

Sign is building a global distribution platform for good services and assets. EthSign, Sign's first product, allows users to sign legally binding agreements using their public key, creating an on-chain record of agreement to the terms of the contract. Sign's second product is TokenTable, which helps the Web3 project execute, track and enforce the project's use in distributing its tokens.

Creditlink is an on-chain credit infrastructure designed to build an AI-driven on-chain authentication and credit scoring system that converts Web3 financial services into unsecured and inclusive access.

ORIGYN creates powerful digital certificates that prove authenticity, provenance and ownership of valuable assets. Every digital certificate is stored fully on the IC blockchain, resulting in the most secure, transparent and incorruptible certificate of its kind. These certificates are also exceptionally robust and customizable, housing data, images, documents, multimedia, marketplaces and even entire applications.

Simple Proof enables organizations to enhance transparency and ensure the authenticity of documents by incorporating immutable blockchain-based timestamping into their current processes.

Kalichain is a platform using blockchain, NFC chips, and NFTs to guarantee product authenticity, traceability, and security while combating counterfeiting. It creates a unique, immutable "digital ownership certificate" for each item, enabling businesses to protect their brands and benefit from secondary market royalties. Consumers enjoy fraud-free transactions and verified authenticity. Kalichain integrates advanced technologies like ECDSA signatures and NFC/QR codes for seamless product verification.

Wakweli is an NFT certification protocol that issues a provable mark of authenticity for NFTs and other tokenized assets. This will help to facilitate the verification process for NFT commissioners, traders, and artists.

Xeal is a platform using AI and blockchain to verify NFT authenticity. It embeds invisible codes in assets, scanned via mobile app, and cross-references with blockchain hashes. Users can create, trade, and verify NFTs on the system.

Waltonchain is an underlying public business ecochain that utilizes RFID technology to create a unique combination of blockchain and the Internet of Things (IoT). On this ecochain, merchants can create customized child chains and monitor production, logistics, warehousing, and retail circulation of all commodities. As a business ecochain, Waltonchain ensures that all data on it is authentic and credible. Through the self-developed reader chip and tag chip, all data of physical commodities in circulation is automatically recorded to the blockchain, avoiding human interference and minimizing the possibility of data tampering. This creates a fair, transparent, traceable, and credible new-generation business ecosystem.

Stampery is a verification and certification platform that generates legal proofs for all its customers' sensitive documents using Bitcoin's blockchain. Its service can be used to attest the integrity, existence, ownership, and receipt of any file or communication, as well as to certify digital transactions to generate audit trails, protect customers' intellectual properties, and prove proprietorship of digital assets. Stampery charges a service fee from its clients depending on the number of file transactions and the utilization of storage space on a monthly basis.

Traceability Chain aims to build a traceability cloud platform based on block chain technology, leveraging the unique non-tamperable distributed ledger characteristics of the block chain, to solve enterprises' difficulties in information traceability, anti-counterfeiting, verification, and mobile marketing during commodity production.

Licit is a Web3 verifying platform that uses blockchain and artificial intelligence to verify all types of digital assets. It can verify documents, barcodes, provenance, counterfeits, and other digital items. For example, institutions can issue authenticated and tamper-proof education certifications; organizations can scan and validate identity documents; brands can prove item authenticity through QR codes on packaging; and more.

TheRollNumber is a blockchain-based background verification system for companies, universities, and individuals to protect themselves from fake and fraudulent certificates and reduce the effort of HRs and onboarding teams.

Veridian is an open-source platform developed by Cardano Foundation for managing digital identities. It uses KERI and ACDC protocols to enable decentralized identifiers and verifiable credentials, supporting individuals and organizations with a mobile wallet and scalable infrastructure on blockchain.