about

I'm Santhil Kherwal, a 20-year-old developer working mostly in Web3 and full-stack.

I lead engineering at a production e-commerce company, build decentralized products, and I'm a Google Summer of Code 2026 contributor at Alaska. Currently a 2nd-year student at Jaypee Institute of Information Technology.

A few things I've built:

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projects

Answer Point A decentralized timestamp notary on Ethereum. Prove you had a file on a specific date — no uploads, no middlemen, no trust required. Your file never touches a server: a SHA-256 hash is computed in the browser via the Web Crypto API, then anchored on Ethereum. Once on-chain, the fingerprint can't be altered or backdated. So far: 10.32 GB of data notarized 1,847 files timestamped 24,519 on-chain block anchors ~1.2s average hash computation 99.97% uptime since launch Built with Solidity Ethers.js React Vite MetaMask Sepolia Testnet Built it because trusting a centralized notary to stamp a PDF never sat right with me.

Protein Pantry Tech Lead at a nutrition & supplements brand shipping across India. I own the tech stack for a company with real revenue and real customers. What I built: The full Shopify Liquid theme — mobile-first and conversion-focused Real-time order tracking via Zippee API integrations A WhatsApp notification pipeline with webhook-driven status alerts Bundle Builder — a drag-and-drop custom bundle system that lifted AOV by 34% Sub-2s page loads through asset optimization Built with Shopify Liquid JavaScript Node.js REST APIs Webhooks Custom CSS

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stack

blockchain & web3

frontend

backend & infra

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activity

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contact

Happy to talk about Web3, open source, or startup ideas.