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ERC-7893 DeFi Protocol Solvency Proof Mechanism

FinalERCcreated 2025-01-30requires ERC-20, ERC-165

Verifiable solvency proofs and financial health monitoring for DeFi protocols

Author: Sean Luis Guada Rodríguez (@SeanLuis)

ERC-165 interface ids

Computed here as the XOR of the selectors each interface defines.

ISolvencyProof0xa6007435

Functions this standard introduces (7)

0x148c74c9getProtocolAssets()view
0xe117a765getProtocolLiabilities()view
0xf8a66851getSolvencyHistory(uint256,uint256)view
0xfefa625fgetSolvencyRatio()view
0xc7a85d1eupdateAssets(address[],uint256[],uint256[])
0x19e7476bupdateLiabilities(address[],uint256[],uint256[])
0x8b88b7e2verifySolvency()view

Events (3)

Topic0 is the keccak256 hash of the signature, which is what a log filter matches on.

0x3455e9b2afdbab6bca3270284bc11feed7e59c631426181cdca4d83a221cf618SolvencyMetricsUpdated(uint256,uint256,uint256,uint256)
0x22cf542d4edec5f18294987d215cf08f3538eb6b92ae17bb6b78900977f6899bRiskAlert(string,uint256,uint256,uint256)
0x94c9cbe1d9aa7af08484f82ab0179d6db973a391236668c34192d954ff32c06cOracleUpdated(address,bool)

Depends on (2)

Proposals this one names in its requires field.

ERC-20Token StandardERC-165Standard Interface Detection

What the specification covers

AbstractMotivationSpecificationCore Interface RequirementsOracle Authorization RequirementsUpdate Function RequirementsQuery Function RequirementsInterface Detection SupportRationaleAsset and Liability ManagementSolvency Calculation and VerificationHistorical Data and Trend AnalysisEvent Emission and Risk AlertsOracle Integration and SecurityIntended Usage and IntegrationData Structure Design RationaleTest-Driven Design DecisionsThreshold Selection MethodologyImplementation InsightsMathematical Model1. Core Solvency Calculations2. Risk-Adjusted Health Factor3. Risk MetricsValue at Risk (VaR)Liquidity Coverage Ratio (LCR)4. System Health Index5. Default ProbabilityRisk ThresholdsRisk Assessment FrameworkOracle Integration (Optional)Implementation RequirementsImplementation ConsiderationsImplementation NotesBackwards CompatibilityReference ImplementationCore Implementation RequirementsRecommended Implementation PatternsState Management with Security ConstantsAdvanced Security FeaturesAccess Control SystemCircuit Breaker ImplementationMulti-Oracle Consensus ValidationHistorical Data ManagementEmergency Response SystemGas Optimization StrategiesBounded OperationsStorage OptimizationTesting and Validation RequirementsComprehensive Test CoverageProduction Deployment RequirementsIntegration PatternsOracle IntegrationLiquidation System (Optional Enhancement)Security ConsiderationsOracle Security - Implementation RequirementsPrice Feed ValidationTWAP IntegrationOracle Failure HandlingAccess Control - Specific ImplementationRole-Based PermissionsRate Limiting ImplementationMulti-signature RequirementsRisk Management - Concrete ParametersThreshold Calibration with Production ValuesAlert System ImplementationHistorical Data ProtectionEmergency Response MechanismsCircuit Breaker IntegrationTime Delays for Critical OperationsGas Optimization SecurityBounded OperationsDoS Attack PreventionIntegration Security PatternsLiquidation Protection PatternValidation and Testing RequirementsStress Testing ScenariosAudit RequirementsProduction Deployment RequirementsProduction-Validated Security ParametersCopyright

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