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## Introduction
SIGN tokens, as the core of the full-chain interoperability verification protocol, are leading the innovation of digital public infrastructure. In April 2025, Sign Protocol not only achieved cross-chain verification, but also optimized token distribution management through the TokenTable airdrop platform. This breakthrough technology has brought unprecedented opportunities to financial technology and promoted the rapid development of global credential verification and token economy.

## Sign Protocol: Building a full-chain verification infrastructure for digital trust
As a full-chain interoperable verification protocol, Sign Protocol is revolutionizing the field of digital trust. The protocol supports multiple major blockchains, including <a href="/ja/price/ethereum-eth" target="_blank" class="blog_inner_link">Ethereum</a>, <a href="/ja/price/solana-sol" target="_blank" class="blog_inner_link">Solana</a>, and TON, and realizes the functions of cross-chain attestations and verifications. By establishing a universal standard, Sign Protocol enables users to freely verify any information on different blockchains, thus solving the key challenges of digital trust in the <a href="/ja/web3" target="_blank" class="blog_inner_link">Web3</a> ecosystem. SIGN tokens play an important role in this ecosystem and are used for a variety of purposes such as governance, fee payment, and network security. This full-chain interoperability makes Sign Protocol an ideal choice for digital public infrastructure, providing strong support for governments and decentralized applications.

##TokenTable: A smart contract token distribution platform that subverts tradition
As another core product of the Sign ecosystem, TokenTable is revolutionizing the way tokens are distributed. This smart contract-based platform provides comprehensive functions such as airdrops, management, and unlocking, bringing unprecedented convenience to project owners and investors. The innovation of TokenTable lies in its flexibility and security, which can meet the customized needs of different projects while ensuring the transparency and fairness of the distribution process. By leveraging blockchain technology, TokenTable significantly reduces the complexity and cost of traditional token distribution methods, and provides an efficient and compliant token distribution solution for the relevant ecosystem.

## SIGN Token: Powering a Global Credential Validation and Token Distribution Ecosystem
The SIGN token is the core driver of the entire Sign ecosystem. As a versatile utility token, SIGN is not only used to pay protocol fees and participate in governance decisions, but also plays a key role in network security. The uniqueness of the SIGN token lies in its cross-platform liquidity, which reduces the transfer friction between different L1 blockchains. This feature makes SIGN a bridge connecting different blockchain ecosystems, providing users with a wider range of application scenarios and value transfer paths. As the Sign Protocol and TokenTable continue to develop, the utility and value of the SIGN token are also continuing to grow, attracting more and more attention from cryptocurrency investors and blockchain developers.

## Conclusion
SIGN tokens lead a new era of full-chain interoperability verification and token distribution. Sign Protocol realizes cross-chain verification, TokenTable optimizes token management, and jointly builds an efficient and secure digital trust infrastructure. In 2025, the SIGN ecosystem will make breakthroughs in the field of asset tokenization, opening up new avenues for the development of financial technology.

Risk warning: Market fluctuations may affect the value of SIGN tokens, and technological updates or regulatory changes may change the development trajectory of the ecosystem.



<div class="blog-details-info">
<div>Author:**Joy Z.**, Gate.io Researcher
<div class="info-tips">\*This article represents only the views of the researcher and does not constitute any investment suggestions. All investments carry inherent risks; prudent decision-making is essential.
<div>\*Gate.io reserves all rights to this article. Reposting of the article will be permitted provided Gate.io is referenced. In all cases, legal action will be taken due to copyright infringement.
</div>


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SIGN Token: Innovation of the Full-chain Interoperable Verification Protocol