Europeum / Timestamp
Hacken reviewed Europeum (Europeum / Timestamp) on 12 Aug 2026: 24 findings, 0 critical; 14 marked fixed, 9 acknowledged, 1 open.
Report hosted on hacken.io.
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Findings24
Statuses are the security firm’s own, from its report.
| Severity | Open | Acknowledged | Fixed |
|---|---|---|---|
| Critical | 0 | 0 | 0 |
| High | 0 | 1 | 2 |
| Medium | 0 | 1 | 1 |
| Low | 1 | 7 | 11 |
HighOut-of-Bounds Array Access in insertRecordOwner Permanently Breaks Owner Re-AdditionFixed
The report gives no description here.
HighUnconditional Global Index Cleanup in detachRecordVersionHash Causes Irreversible Data CorruptionFixed
The report gives no description here.
MediumMissing State Cleanup in detachRecordVersionHash Breaks Timestamp Re-attachment to RecordsFixed
The report gives no description here.
LowDetaching All Timestamps From a Version Renders Version Data Permanently InaccessibleFixed
The report gives no description here.
LowEvent RecordVersionInfo Has Non-Indexed recordId Parameter Reducing Off-Chain Query EfficiencyFixed
The report gives no description here.
LowFront-Running Risk in timestampHashes Allows Adversaries to Capture Proof-of-Existence AttributionFixed
The report gives no description here.
LowFunction insertRecordOwner Allows Creating Owners With notAfter Set to Zero Resulting in Permanently Invalid OwnershipFixed
The report gives no description here.
LowInconsistent versionInfo Deduplication Logic Across Record FunctionsFixed
The report gives no description here.
LowMapping revokedOwnerIdsToBlockNum Is Only Reset and Never Set to Actual Block NumberFixed
The report gives no description here.
LowMissing Hash Value Length Validation Against Algorithm outputLength Allows Malformed TimestampsFixed
The report gives no description here.
Show 4 more
LowMissing Uniqueness Check in updateHashAlgorithm Allows Duplicate Algorithm NamesFixed
The report gives no description here.
LowMissing Validation Allows timestampData Array to Exceed hashValues LengthFixed
The report gives no description here.
LowSelf-Revocation in revokeRecordOwner Can Permanently Orphan RecordsFixed
The report gives no description here.
LowUnused Storage Mapping timestampIdToVersionId Increases Contract Complexity Without Providing FunctionalityFixed
The report gives no description here.
Contracts in scope
No deployed address is recorded for this audit.
The report names a repository or files. Open the report to see its scope.
Repository and files the report names (4)
- contracts/timestamp/contracts/libraries/TimestampLib.sol
- contracts/timestamp/contracts/libraries/RecordLib.sol
- contracts/timestamp/contracts/libraries/HashAlgoLib.sol
- contracts/timestamp/contracts/Timestamp.sol
Part of Europeum’s security record
EuropeumSecurity firm
Hacken343 projects reviewed · 476 reports · latest Sep 2026
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