{
    "as_of": "2026-06-15T17:42:33+00:00",
    "corpus_total": 59,
    "company_filter": "perplexity",
    "summary": {
        "unique_role_keys": 55,
        "clustered_role_keys": 4,
        "total_reposts": 4,
        "repost_pct": 6.8,
        "tier_breakdown": {
            "duplicate": 4,
            "persistent": 0,
            "chronic": 0
        }
    },
    "top_clusters": [
        {
            "title": "Member of Technical Staff (AI Infrastructure Engineer)",
            "company": "Perplexity",
            "count": 2,
            "first_seen": "2026-04-13T19:40:16+00:00",
            "last_seen": "2026-04-13T19:40:57+00:00",
            "tier": "duplicate"
        },
        {
            "title": "Member of Technical Staff (AI Inference Engineer)",
            "company": "Perplexity",
            "count": 2,
            "first_seen": "2026-04-13T19:39:28+00:00",
            "last_seen": "2026-04-13T19:39:49+00:00",
            "tier": "duplicate"
        },
        {
            "title": "Internship - Search Machine Learning Engineer",
            "company": "Perplexity",
            "count": 2,
            "first_seen": "2026-01-13T21:20:02+00:00",
            "last_seen": "2026-04-08T13:33:01+00:00",
            "tier": "duplicate"
        },
        {
            "title": "Member of Technical Staff (Software Engineer, Cloud Infrastructure)",
            "company": "Perplexity",
            "count": 2,
            "first_seen": "2026-06-03T15:09:25+00:00",
            "last_seen": "2026-06-03T19:53:06+00:00",
            "tier": "duplicate"
        }
    ],
    "docs": "https://remnavi.com/editorial/ghost-jobs/",
    "methodology_note": "Clusters are jobs sharing a normalised (title, company) key. A cluster of N listings counts (N-1) as reposts. This is an observation, not a verdict \u2014 some duplicates are legitimate cross-team or cross-region postings of the same role."
}