HashPort is a service for storing and verifying dapp and DeFi frontends directly on BNB Chain. It aims to help users confirm that the page presented by a wallet matches the frontend declared by a contract, reducing exposure to tampered interfaces, malicious approvals, and phishing pages. Publishers upload a static site’s build folder through a browser-based, drag-and-drop console. HashPort records each file’s SHA-256 hash on chain, while a public registry lets a contract owner declare the official frontend. Wallets and security auditors can check files and signed audit hashes against those records.

A site is administered through a HashPort circuit container NFT built on TapeOut; transferring the NFT transfers control of the site. A complete dapp, including its frontend and domain payments, can be listed and sold through the circuit market, with editing frozen while listed. HashPort also provides a verifier library, demo page, open-source gateway, and a BEP standard for wallet and auditor integration. The service charges no upload fee, though BNB Chain gas costs apply.