Puzzle Solution Submission and Verification API

[Mkalbani]

Location: Backend API
Labels: backend, game-logic, good first issue
Estimated Time: 7 hours
Difficulty: Medium

Description

Build a robust puzzle solution submission system with server-side verification, anti-cheat measures, and reward triggering.

Tasks

• Create puzzle submission endpoint
• Implement solution hashing and verification
• Add anti-replay attack prevention
• Create time-based validation (puzzle started timestamp)
• Implement reward calculation logic
• Add database transaction for atomic updates
• Create submission history tracking
• Write verification tests with edge cases
• Add submission rate limiting per user
• Implement fraud detection (too fast completions)

Acceptance Criteria

• Solutions verified server-side
• Rewards calculated and saved
• Anti-cheat measures prevent exploits
• Submission history tracked
• Rate limiting works
• Tests cover edge cases

[drips-wave]

This issue has been added to the Stellar Wave Program and is worth 150 Points.

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[odeyemitobi]

@odeyemitobi has applied to work on this issue as part of the Stellar Wave Program's 2nd wave.

I would like to work on this issue

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

[Robinsonchiziterem]

@Robinsonchiziterem has applied to work on this issue as part of the Stellar Wave Program's 2nd wave.

I’m a backend developer with experience building solution submission and verification systems. I’ve implemented server-side validation, anti-cheat measures, reward triggering, and transaction-safe database updates for game logic.
I would love to work on this issue, my ETA is 2 hours.

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

[drips-wave]

Congratulations, @Robinsonchiziterem! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on February 26, 2026.

🧑‍💻 @Robinsonchiziterem: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

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