▦ Career path
From 0x00 to 0xFF.
One ladder, seven tiers. Every solved lab, 0xPuzzle and quiz earns XP toward the next rank — and the same record becomes your public, verifiable proof of skill.
Newcomer
0 – 149 XPYou’ve stepped onto the range. Start with a 0xPuzzle or the first beginner lab — no Solidity required.
Scout
150 – 499 XPFirst blood. You’ve broken a contract and written your first structured finding.
Hunter
500 – 1,199 XPYou can recognise and exploit the common vulnerability classes without hand-holding.
Operator
1,200 – 2,199 XPFluent across reentrancy, access control and oracle manipulation. A dependable operator.
Auditor
2,200 – 3,999 XPAudit-ready. Your portfolio of findings stands on its own — and certificates unlock here.
Certificate eligibleSenior
4,000 – 6,999 XPBridge-, signature- and proxy-level attacks. You write post-mortems others learn from.
Certificate eligiblePrincipal
7,000+ XPTop of the range. At Principal, the findings speak for themselves.
Certificate eligibleA certificate worth showing
From 0x9F Auditor upward, your record of solved labs and published findings can be issued as a verifiable certificate — a signed, shareable proof that links straight back to the work, so a protocol or employer can check it for themselves.