/claim #18

Summary

• Adds a self-contained duplicate-solver guard for the Scientific Bounty System arbitration path.
• Detects repeated solver identities, repeated teams, shared payment routes, copied artifact hashes, and high summary similarity before sponsor scoring or payout routing.
• Writes deterministic reviewer artifacts: JSON packet, Markdown report, SVG summary, and MP4 demo.

Validation

• node scientific-bounty-duplicate-solver-guard/test.js
• node scientific-bounty-duplicate-solver-guard/demo.js
• git diff --check

Reviewer artifacts

• scientific-bounty-duplicate-solver-guard/reports/duplicate-solver-packet.json
• scientific-bounty-duplicate-solver-guard/reports/duplicate-solver-report.md
• scientific-bounty-duplicate-solver-guard/reports/summary.svg
• scientific-bounty-duplicate-solver-guard/reports/demo.mp4