[SCA] Europeum / Timestamp

Ethereum

Audited on 2026/08/12

No open critical findings

Summary

The Timestamp service is an EVM-based smart contract system designed to provide proof-of-existence by storing cryptographic hash values on-chain. Deployed as part of the European Blockchain Services Infrastructure (EBSI), the contract enables subjects to timestamp hashes, organize them into versioned records, and manage record ownership through time-bound validity windows.

Project

Europeum

Ethereum

No open critical findings

Last audited on 2026/08/13

by Hacken

Auditor

Hacken

Multi-Chain

2.8bn TVL of audited projects

488 audits on Trustblock

Multi-Tags

Issues (24)

	Low	Medium	High	Critical	Total
Not fixed	1	-	-	-	1
Acknowledged	7	1	1	-	9
Fixed	11	1	2	-	14
Total	19	2	3	0	24

Contracts (4)

#	File Name
1	contracts/timestamp/contracts/libraries/TimestampLib.sol
2	contracts/timestamp/contracts/libraries/RecordLib.sol
3	contracts/timestamp/contracts/libraries/HashAlgoLib.sol
4	contracts/timestamp/contracts/Timestamp.sol

#	File Name
1	contracts/timestamp/contracts/libraries/TimestampLib.sol
2	contracts/timestamp/contracts/libraries/RecordLib.sol
3	contracts/timestamp/contracts/libraries/HashAlgoLib.sol
4	contracts/timestamp/contracts/Timestamp.sol

[SCA] Europeum / Timestamp

Summary

Issues (24)

[DualDefense] Incomplete Index Maintenance in Record Owner and Timestamp Resolution Functions May Cause Operational Limitations in Edge Casesnot_fixed/low

Functions timestampHashes and timestampRecordHashes Lack Policy Registry Check Allowing Unrestricted Timestamp and Record CreationAcknowledgedacknowledged/high

Record Management Functions Lack Policy Registry Check Relying Only on Ownership VerificationAcknowledgedacknowledged/medium

Event UpdateHashAlgo Contains Redundant ianaName Parameter Passed TwiceAcknowledgedacknowledged/low

Low Case-Sensitivity Inconsistency for Owner IDs Results in Potential Lookup FailuresAcknowledgedacknowledged/low

Contracts (4)