Arnab Sengupta

Projects

Built under deadline

Most of these started as a 36-hour build. The ones worth keeping got the maths and the audit trail afterwards.

Sep 2025

Dike Protocol

ETHGlobal New Delhi finalist

A decentralised primitive for capital-efficient, chained prediction markets.

  • Formulated the mechanism design for Prediction Chaining — recursive collateral re-use across parent and child markets.
  • Defined the risk parameters: collateralisation ratio, health ratio, liquidation thresholds. Solvency guaranteed while still supporting leveraged speculation.
  • Simulations show up to 4.98x ROI against traditional siloed markets.
  • Wrote the full protocol in Solidity — loan issuance, chained settlement, liquidation mechanics.

Solidity · Foundry · Next.js

livesource

May 2025

AlphaScan AI

2 hackathon wins · 2 wins

A DeFAI agent for autonomous crypto trading, built on real-time multi-source alpha verification and deterministic validation.

  • Ingests Telegram alpha signals, then validates them against Twitter sentiment on the same token before acting.
  • Trust layer evaluates historical token performance and cross-checks Telegram against Twitter to flag fabricated alpha.
  • A reflection engine turns those signals into a deterministic trust decision; wallet balance is verified before any Web3 execution.
  • Every alpha, validation, and trade is logged. No synthetic data anywhere in the pipeline — if validation fails, the process halts with full traceability.

LangChain · Python · FastAPI · Solidity · Next.js

livesourcedemo

May 2025

AltNode

2 hackathon wins · 2 wins · 7 tokens

A decentralised AI agent marketplace — create, own, and monetise agents as NFTs, with autonomous on-chain execution.

  • Built the agent testing and execution pipeline, running autonomously from on-chain triggers via Autonome.
  • No-code builder with natural-language agent generation, plus a Monaco-powered IDE for custom logic.
  • Token launchpad in Solidity, letting each agent issue its own ERC-20 for monetisation.

Next.js · Solidity · IPFS · LIT Protocol

livesourcedemo

May 2025

Ruins of Rome

2 hackathon wins · 100+ nfts · 20+ gamers · 2 wins

A strategic Web3 battleground where AI-powered NFT gladiators fight under the blessings of Roman gods.

  • Gladiators are NFTs with AI-driven combat behaviour rather than fixed stat rolls.
  • God blessings act as modifiers on the battle resolution, so strategy sits above the randomness.
  • Once upon a time there wagered a war among gladiators.

Next.js · MongoDB · Groq SDK · Corcel API

livesourcedemo

May 2025

CogniTrail

10+ users

An interactive learning tool that turns any topic into a dynamic, AI-generated knowledge tree.

  • Expands a topic into a navigable graph in real time, rather than a linear syllabus.
  • Learning paths adapt to what you have already explored.
  • Built on ReactFlow so the tree stays legible as it grows.

Next.js · TypeScript · ReactFlow · Radix UI · MongoDB

livesource

May 2025

StoryBoard

10+ users · 20+ stories

A decentralised storytelling platform where readers steer the plot in real time through choices, perks, and token rewards.

  • Writers compose manually or with AI assistance; readers vote on branches as the story runs.
  • Gamified perks and token-based rewards tie reader participation to the narrative.

Next.js · Smart Contracts · Web3 · AI

livesourcedemo