The Trustless Blockchain Data Verifier is a Chrome extension developed by Fireblocks Labs. It is a free tool that aims to verify blockchain data presented on popular websites using Light Client technology.

If you use Etherscan to check your token balances or regularly monitor your Metamask Portfolio, you may have wondered how reliable the data is. This extension helps address that concern by utilizing innovative Light Client decentralized technology to verify the accuracy of the data presented on these centralized websites.

It is important to note that this extension is an open-source research project by the Fireblocks Research team and is currently in the BETA stage. As such, it is not a security product and does not provide protection against malicious software or actors. Its primary purpose is to provide decentralized verification for centralized data. Users should understand and accept the risks associated with using this extension.

For those interested in the technical details, the extension's source code is available on the Fireblocks Labs' GitHub repository under the MIT license.