Core Verification

Cassandre

She speaks before the exploit.

Continuous formal verification for deployed DeFi protocols. Cassandre infers invariants automatically from on-chain contract logic and flags missing or violated constraints before exploitation — without human-authored specifications. Runs continuously against live state.

$197M

Euler Pattern

24/7

Live Monitor

Specs Required

§ SPECIFICATION

Input

Deployed contract address + ABI
Chain RPC endpoint
Optional: known invariant set

Constraints Verified

Auto-inferred from historical state transitions
Balance monotonicity
Ownership invariants
Liquidity ratio bounds

Output

Auto-inferred invariant set
Violation alerts with block context
Proof artifact on each violation
Pre-exploit signal (not post-incident)

§ SAMPLE PROOF ARTIFACT

ARTIFACT // CASS-EULER-01FAILURE DETECTED

// SAMPLE PROOF — CASSANDRE ENGINE

Euler Finance — donateToReserves() invariant gap

TargetEuler Finance v1

Conditionviolating_debt_amount() called after donateToReserves() in single tx

VerdictSAT

SummaryCassandre recovered the invariant failure pattern post-incident. Would have fired 4 blocks before exploit.

StatusReview-ready

→ View full artifact repository

§ FIELD VALIDATION

#	Target	Vulnerability Class	Status
01	Euler Finance Invariant Violation	Invariant Violation	Post-Incident

Run Cassandre on your system.

Formal engagement starts with a technical intake. We scope, configure, and deliver a proof artifact within the agreed SLA.

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