thisvishalsingh

Intro

Hey! I'm a Security Researcher focused on Blockchain/DLT and Smart Contract Security, active since 2023.

I'm particularly interested in Lending, Privacy(TEEs, MPC, FHE) and ZKP. If you need some code to be reviewed, please reach out on X or telegram.

I am also the creator of ZippelLabs , a ZK proving toolstack for performance and security acceleration for zkVMs to prove Ethereum in real-time.

Solidity, Rust, Go, Circom, FunC, even Cairo: I find bugs in any language!

Ethereum, Solana, even Bitcoin: I find bugs in any stack!

CV

• Security researcher

  • Private audits since (Q4 2024 - now)
  • competitive audits @Code4rena, @Sherlock, @Cantina & @Codehawks since (Q1 2024 - now)

• Blockchain Developer (Q2 2023 - Q3 2023)

• Software Developer(AI/Web-dev) (Q2 2021 - Q1 2023)

• Degrees

  • Bachelor's of Technology in Electronics & Communication Engineering
  • Bachelor's of Science in Computer Science

Public Profile

• Cantina x Spearbit: https://cantina.xyz/u/thisvishalsingh
• Sherlock: https://audits.sherlock.xyz/watson/thisvishalsingh

Protocols Secured

Project	Project review type	Date
Geneius Foundation	Infrastructure - Solana Bridge (Rust, typescript, Solidity)	July 2025
Telcoin Network	Infrastructure - EVM L1 (Rust)	June 2025
Succinct	Infrastructure - zk (Solidity)	July 2025
Nitro Labs / solaxy	Infrastructure - Solana VM & rollup (Rust)	June 2025
Alchemix v3	Smart Contract - Solidity	May 2025
DefiApp	Smart contract - Staking (Solidity)	February 2025
FarcasterAttestation	Smart contract/Infrastructure - Solidity	January 2025
AAve v3.3	Smart contract - Solidity	January 2025
Daoo	Smart contract - Solidity	January 2025
Chorus One / ton-pool-contracts	Staking contract - TON Blockchain(FunC)	January 2025
Stakeup-Bloom-v2	Smart contract - LST & Lending (Solidity)	January 2025
Sorella Labs-Angstrom	Smart contract-AMM	November 2024
InfinityPools	Smart contract-AMM	October 2024
Panoptic	Smart contract-AMM	October 2024
Decent - 0ft4626	Smart contract-Cross Chain	September 2024
Zerolend One	Smart contract-Lending	August 2024
Winnables Raffles	Smart contract-NFT	August 2024
Tadle	Smart contract	August 2024
LoopFi	Smart contract-Lending	July 2024
RadicalxChange	Smart contract	March 2024
Napier	Smart contract	February 2024

Top Protocols Secured in competitions and original writeups

• RadicalxChange - 3rd Rank <img width="3" height="3" alt="image" src="https://github.com/user-attachments/assets/b5634942-f69e-4f15-a23d-8297b7009e0f" /> : Highest bidder can withdraw his collateral due to a missing check in _cancelAllBids
• Sorella Angstrom - 4th Rank(10xCrit-Patrol team) : Fees can be stolen by changing the initialized ticks
• Geneius Contracts - 6th Rank : DoS in Solana vai order_hash collision during filling orders
• Nitro-Labs/Solaxy - 8th Rank : Stale owner index lets attackers create “ghost” programs and exhaust resources
• Napier - 9th Rank : Loss of funds due to not collecting fees
• FarcasterAttestation 16th Rank: The lack of ERC-165 compliance leads to integration failures