The challenge
An agri-waste company that turns crop residue into value needed its marketplace app hardened, a modern website, and a secure exchange where verified sellers can list carbon credits and buyers can purchase and retire them with a trustworthy audit trail.
What we built
- QA and fixes for the existing biomass marketplace app
- Animated marketing website with light and dark themes
- Exchange with KYC, seller projects, an order book and credit retirement
- Hash-chained ledger with public anchoring for a tamper-evident audit trail
- INR wallet with online payments
Frequently asked questions
What is a hash-chained ledger?
Each transaction record includes a cryptographic hash of the previous one, so any later change breaks the chain and is detectable. Periodically publishing ("anchoring") the latest hash makes the history publicly verifiable.
Who built ZeroXC?
ZeroXC was engineered by FutureFist Tech Solutions LLP, a software engineering company in Thane, Mumbai, India. Tech stack: Marketplace · Exchange engine · Payments.
Some client details are generalised to respect confidentiality. A live walkthrough is available on request.









