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KaustubhOG/README.md

Kaustubh Shivarkar

I build Solana smart contracts, fullstack dApps, and research web3 security. Currently focused on DeFi protocols, NFT systems, and responsible vulnerability disclosure.

Solana Development

SOLANA_PROJECTS is a structured repository of on-chain programs written in Rust using the Anchor framework, progressing from foundational concepts to production-level protocols.

AMM — Constant product formula for decentralized token swaps.

escrow — Trustless token exchange with offer, take, and cancel flows between two parties.

NFT staking — NFT staking protocol with on-chain reward emission.

nft-mplxcore — NFT creation and management via Metaplex Core.

prediction market — Decentralized prediction market with on-chain settlement and resolution logic.

Fullstack dApps

bullsEye — Built for a hackathon. An accountability platform on Solana where users lock funds against a personal goal and have completion verified by peers through Solana Blinks. Deployed at bulls-eye-kappa.vercel.app

MintX — Token launchpad and vesting dApp. In progress.

betinco — On-chain betting platform with fullstack integration. Deployed at betinco.vercel.app

Security Research

CTF_Exclusive — Writeups and scripts from CTF competitions including picoCTF and PortSwigger Web Security Academy, covering web exploitation and general security skills.

Security_vuln_Profile — A record of vulnerabilities discovered and responsibly disclosed across live platforms.

Severity    Total    Triaged
────────────────────────────
Critical      3         2
High          3         1
Medium        1         0

Findings include SQL Injection, Remote Code Execution, OTP Bypass, Reflected XSS, IDOR, and Stack Trace Exposure. Technical details withheld to protect affected systems.

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  1. Solana_Projects- Solana_Projects- Public

    Collection of Solana blockchain projects from beginner to advanced

    Rust 1

  2. solana_predication_market solana_predication_market Public

    A simple prediction market on Solana where users bet on outcomes and winners claim rewards after the result is decided.

    Rust 1

  3. bullsEye_complete bullsEye_complete Public

    Accountability as a Service - Solana-based goal commitment platform with peer verification and fund lockingwebsite

    TypeScript 1

  4. MintX MintX Public

    Token Launchpad with Vesting & Claims on Solana - Create, Lock, and Distribute Tokens

    TypeScript 1

  5. CTF_Exclusive CTF_Exclusive Public

    CTF solutions and vulnerability exploitation demonstrations

    1

  6. Security_vuln_Profile Security_vuln_Profile Public

    1