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45 reviews

Hashmark – Blockchain document verification platform

Hashmark is a blockchain-powered document verification platform that leverages Polygon to ensure secure, tamper-proof storage and instant authenticity checks of PDF documents.

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Hashmark is a blockchain-powered document verification platform that leverages Polygon to ensure secure, tamper-proof storage and instant authenticity checks of PDF documents.
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About the client

Hashmark is a blockchain-powered document verification platform that leverages Polygon to ensure secure, tamper-proof storage and instant authenticity checks of PDF documents.
Industry
Blockhain Industry
Client size
30-50 Employees
Node.js
React
TON
Blockchain solution
Smart contract
Executive summary

Client background

The client sought a minimal viable product (MVP) that could securely generate a document hash, store it on the blockchain, and facilitate verification of authenticity through either file upload or unique identifier entry.

Business challenge

The project required seamless PDF upload with automatic hash generation, ensuring files were processed quickly and securely. Another challenge was integrating blockchain recording without causing performance issues, keeping transactions smooth and reliable. At the same time, the system needed to remain lightweight yet scalable, allowing room for future SaaS expansion. Ultimately, it was crucial to design a straightforward verification process that even non-technical users could easily navigate.

Value delivered

The team implemented an automated PDF hash generation system linked with the Polygon blockchain, ensuring efficiency and low transaction costs. A scalable backend architecture was created, laying the foundation for future SaaS expansion without compromising performance. For user experience, an intuitive interface was designed to allow documents to be uploaded and instantly paired with a verification ID. The verification flow was simplified by enabling authenticity checks through either direct hash/ID input or uploading the document itself. Together, these solutions delivered a lightweight, secure, and user-friendly system ready for both current needs and long-term growth.

Success story in detail

EvaCodes delivered a cost-effective, secure, and scalable MVP that combines blockchain trust with user-friendly functionality. The platform provides clients with reliable document verification, reduces the risk of fraud, and serves as a strong foundation for expanding into a SaaS-based solution.

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