Riley Holterhus

Smart contract auditor and bug bounty hunter.
Lead Security Researcher at Spearbit / Cantina.

Audits

Ekubo - Independent2025/10
Impermax - Independent Group2025/06
Biconomy - C4 Zenith2025/04
Fastlane - Cantina2025/04
Ekubo - Plainshift2025/03
Biconomy - C4 Zenith2025/02
Frax Finance - Independent Group2025/02
Bitcorn - Cantina2025/01
Optimism - Offbeat Security2025/01
Solady - Spearbit2024/12
Coinbase - Cantina2024/11
Coinbase - Cantina2024/11
NodeSet - Independent2024/11
Rhinestone/Biconomy - Cantina2024/09
Coinbase - Spearbit2024/09
Splits - Independent2024/08
NodeSet - Independent2024/08
Frax Finance - Independent Group2024/05
Frax Finance - Independent Group2024/05
Fastlane - Spearbit2024/04
Frax Finance - Independent Group2024/03
Frax Finance - Independent Group2024/03
Relic - Independent2024/03
Clave - Cantina2024/02
Base - Cantina2024/02
Base - Cantina2024/02
Zyfi - Cantina2024/02
Eco - Cantina2024/01
Axiom - Spearbit2024/01
Axiom - Spearbit2023/12
Base - Cantina2023/12
Alchemy - Spearbit2023/11
Clave - Cantina2023/11
HMX - Cantina2023/10
Axiom - Spearbit2023/10
Algebra - Independent2023/09
HMX - Cantina2023/08
Alchemy - Spearbit2023/07
Barnbridge - Spearbit2023/05
Maple Finance - Cantina2023/04
Waterfall - Spearbit2023/04
LooksRare - Spearbit2023/01
Unbound Finance - Independent2022/11
Maple Finance - Spearbit2022/10
DefiEdge - Independent2022/09
Lyra - Sherlock2022/05

Bug Bounties

Rocket Pool - High risk governance proposal bug2024/08
Rocket Pool - High risk voting power issue2024/08
OpenZeppelin - Low risk Base64 encoding bug2024/02
Undisclosed CLAMM - Critical risk AMM exploit2023/07
Camelot/Algebra - Critical risk AMM exploit2023/06
Rocket Pool - Medium risk incentive issue2023/04
Bunni - High risk frontrunning issue2022/10
ALTAVA - Critical risk merkle proof exploit2022/08
Sappy Seals/Plague NFT - Critical risk staking rewards exploit2022/06
PoolTogether - Critical risk logic bug2022/06
TEN Finance - High risk yield aggregator exploit2022/04

Audit Contests

Ramses Exchange - Code4rena Competition2024/10
Optimism - Code4rena Zenith Competition2024/07

Other

Remedy CTF 2025 - Second-place team2025/01
Curta CTF puzzle author - TinySig2023/03
Spearbit Community Workshop - Maple2023/01
2022 Paradigm CTF puzzle author - merkledrop, hint-finance, lockbox22022/08