📊 Audit Trail Contract

[jobbykings]

Description: Create immutable audit trail contract that records all contract interactions, state changes, and administrative actions for complete transparency and accountability.

Requirements:

Comprehensive event logging
Immutable record storage
State change tracking
Administrative action logging
Audit query interface
Trail verification
Historical analysis
Compliance reporting

Acceptance Criteria:
Event logging captures all contract interactions
Immutable storage prevents record tampering
State change tracking shows complete evolution
Administrative logging records all privileged actions
Query interface enables efficient audit searches
Trail verification ensures data integrity
Historical analysis provides trend insights
Compliance reports meet regulatory requirements
Performance: audit operations under 60k gas

Files to Modify:
contracts/audit/AuditTrail.ts (new)
contracts/audit/interfaces/IAuditTrail.ts (new)
contracts/audit/libraries/AuditLib.ts (new)
contracts/audit/storage/ImmutableStorage.ts (new)
contracts/audit/querying/AuditQuery.ts (new)
contracts/audit/verification/TrailVerifier.ts (new)
tests/audit/AuditTrail.test.ts (new)
scripts/deploy_audit_trail.ts (new)
docs/audit/AuditTrail.md (new)

Definition of Done:
Audit trail provides complete transparency
Immutable storage ensures data integrity
Query interface enables efficient audits
Security audit passes
Gas optimization meets targets
Test coverage exceeds 90%
Documentation covers audit architecture
Integration with all contracts works

[icodeBisola]

@icodeBisola has applied to work on this issue as part of the Stellar Wave Program's 3rd wave.

I would like to contribute to this issue, I have ETC of 2-3 hours and I am the best candidate to resolve this issue

ℹ️ Repo Maintainers: To accept this application, review their application or assign @icodeBisola to this issue.

[Phantomcall]

@Phantomcall has applied to work on this issue as part of the Stellar Wave Program's 3rd wave.

I would implement an immutable audit trail contract that captures every critical interaction through structured, append-only event logging for contract calls, state changes, and administrative actions. Each record should include minimal but sufficient metadata (actor, action type, timestamp, and relevant identifiers), ensuring it stays within Soroban limits while remaining verifiable. The contract should expose query functions for audit retrieval and historical analysis, enforce strict immutability guarantees, and provide clear documentation to support compliance and third-party verification, making the system fully transparent and traceable end-to-end.

i can get this done before the deadline today

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Phantomcall to this issue.