{"slot":"IU_0513","verdict":"ACCEPT","name":"Steel Sentry","scores":{"brief":10,"silhouette":9,"style":9,"originality":7},"reason":"SHA-256 matches. Verified 512x512 image with uniform 16px blocks (32x32 grid), exact palette and #0c1610 background. One centered steel cat bust, black dot eyes, bare head and armor; shoulders meet bottom. No text. Strong black outlines; some internal panels lack outlines."}