Joker

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@Joker

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Public earnings

$115

945th

Public findings

1

Skillset

Self-reported

Admin verified

Blockchain Platforms (L1 + VM)

BitcoinCosmosEthereumEVMNEARSolanaSuiTron

Cloud & DevOps

DockerKubernetes

Consensus & Node Infra

Consensus (PoS / BFT)

Cross-Chain & Interoperability

Cross-Chain Bridges
OverviewPublic reviews

Biography

Security Engineer & Independent Security Researcher — hunting bugs, chasing zero-days, and outmaneuvering both protocols and chess opponents, one move at a time.

Top competitions

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Contest
Position
Date
Payout
ammalgam-contracts

ammalgam-contracts

14

/ 33

July 2025$115

Security portfolio

Title
Description
Blockz - Layer-1 in GoA sovereign Layer-1 blockchain built from scratch in Go, with no external frameworks. Features a hybrid Proof-of-Work/Proof-of-Stake consensus engine, a custom stack-based EVM-compatible VM with gas metering, LevelDB-backed state storage, a custom TCP P2P networking layer, and a JSON-RPC 2.0 API. Includes a dedicated security testbed for exploring consensus attacks, mempool manipulation, VM exploits, and P2P attack vectors.
HackenProof Researcher ProfileSecurity researcher profile on HackenProof (handle: P$r0). Rank #173 with 503 reputation points and 3 paid bug bounty reports (1 critical, 1 high, 1 medium severity). Has influenced 1 live bounty program and earned platform achievements including "Hunter's Mark," "Fatality," and "First Blood." Focus areas: smart contracts and blockchain/web applications.
Sherlock Security Researcher ProfileSecurity researcher profile on Sherlock (handle: prgzro). Participated in audit contests across Sherlock and CodeHawks, with 1 high-severity and 1 medium-severity finding submitted, 4 paid contest payouts, a 1st-place (gold) finish, and additional top-10/top-25 placements.