@Sign Official Sign is the global infrastructure for certificate verification and token distribution: Sign Protocol (Certification Protocol): a full-chain certification protocol that provides digital public infrastructure for governments and serves as the foundational layer for decentralized applications, used for verifying identity, proof of ownership, and contracts. TokenTable: a token distribution platform based on smart contracts, supporting airdrops, vesting management, and token unlocking. Financing background: Sign has raised a total of $32 million. In the 2022 seed round, $14 million was raised, led by Sequoia Capital (U.S., China, India, and Southeast Asia branches). In the 2025 Series A round, $16 million was raised, led by YZi Labs. Real-world implementation: has provided national-level digital infrastructure for the UAE, Thailand, and Sierra Leone, with plans to expand to over 20 countries including Barbados and Singapore. Revenue milestone: anticipated revenue of $15 million in 2024, becoming one of the few profitable Web3 infrastructure providers.#sign $SIGN