Biography
Hey! Zigtur here!
I'm a Lead Security Researcher at Spearbit & Cantina. I'm also a Rust instructor at Rareskills.
Rust, Go, Solidity, even Java: I find bugs in any language!
Ethereum, Solana, Cosmos, even Bitcoin: I find bugs in any stack!
More of my work can be found on Github at zigtur/audits.
My 10 best competitions
| Project | Project review type | Date | Result |
|---|---|---|---|
| Ethereum Pectra | Infrastructure (Go, Rust, Java, C#) | March 2025 | Rand: 2nd 🥈 |
| Ronin Network | Infrastructure - go-ethereum | January 2025 | Rank: 3rd 🥉 |
| Berachain | Infrastructure - Cosmos SDK | January 2025 | Rank: 1st 🥇 |
| Tensor | Smart contract - Solana | November 2024 | Rank: 1st 🥇 |
| Babylon Chain | Infrastructure - Go & Bitcoin | June 2024 | Rank: 2nd 🥈 |
| Grass | Smart contract - Solana | June 2024 | Rank: 2nd 🥈 |
| Alchemix | Smart contract - Solidity | April 2024 | Rank: 1st 🥇 |
| Venus Protocol | Smart contract - Solidity | March 2024 | Rank: 2nd 🥈 |
| EigenLayer | Smart contract - Solidity | March 2024 | Rank: 2nd 🥈 |
| 3DNS | Smart contract - Solidity | February 2024 | Rank: 1st 🥇 |
Learnings & Side-projects
| Project | Type | Date | Link |
|---|---|---|---|
| RareSkills - Rust bootcamp Instructor | Rust | August to October 2024 | N/A |
| Vulnerable HTTP server | Rust | August 2024 | vulnerable-HTTP-server |
| Vulnerable NEAR contract | Rust | August 2024 | vulnerable-NEAR-contract |
| Vulnerable Soroban contract | Rust | August 2024 | vulnerable-NFT-soroban |
| BLS signature | Cryptography | March 2024 | BLS-signature |
| Groth16 Python implementation | Cryptography | November 2023 | Groth16 |
| RareSkills ZK Book (Student) | Cryptography | November 2023 | Rareskills-ZK-book |
| RareSkills Solidity Bootcamp (Student) | Solidity | February to July 2023 | Rareskills-Solidity-Bootcamp |
Top competitions
View allContest | Position | Date | Payout |
|---|---|---|---|
Omni Network | 4 / 420 | October 2024 | $107,485 |
Bitcoin Staking Scripts | 2 / 183 | May 2024 | $56,391 |
Blast | 6 / 600 | January 2024 | $52,487 |
tensor-monorepo | 1 / 274 | October 2024 | $50,840 |
eigenlayer-contracts | 2 / 206 | February 2024 | $20,250 |
Private reviews
View allEngagement | Project title | Timeframe | Researchers |
|---|---|---|---|
OP Labs | Optimism Fix Review: MIPS EventFd and Syscall Error Handling | Jun 2025 - Jun 2025 | |
OpenVM | OpenVM v1.2.1-rc.0 | Jun 2025 - Jun 2025 | |
OP Labs | optimisim-interop-1703-proofs | Mar 2025 - Mar 2025 | |
Lingo | lingoToken | Feb 2025 - Feb 2025 | |
Coinbase | op-enclave | Dec 2024 - Jan 2025 | +1 |
Security portfolio
Title | Description |
|---|---|
| Babylon Chain - Competition | Ranked 2nd in the Babylon Chain competition on Cantina. |
| Berachain - Competition | Ranked 1st in the Berachain competition on Cantina. |
| Tensor - Competition | Ranked 1st in the Tensor Solana competition on Cantina. |
| AAVE v3.1 - Competition | Ranked 3rd in the AAVE v3.1 upgrade competition on Cantina. |
| Venus Protocol - Competition | Ranked 2nd in the Venus Protocol competition on Cantina. |
| Alchemix - Contest | Ranked 1st in the Alchemix contest on Sherlock. |
| 3DNS - Competition | Ranked 1st in the 3DNS competition on Cantina. |
| EigenLayer - Competition | Ranked 2nd out of 182 participants in the EigenLayer competition on Cantina. |