This sample was produced by the real Meyppi pipeline on an illustrative synthetic campaign, so every number below is a genuine engine output, including the partial detection and the version mismatch. The scenario was run with a fixed clock for reproducibility, which is why event timestamps are round; the confidence values are the classifier's policy constants. Client, campaign and publisher identifiers are redacted. A paid audit delivers this exact format with your campaign's data.

Placement detail

Evidence: one verification event

This is what sits behind a single row of the table: the full verification event for EP-1041, as exported with the report. The offset, the coverage ratio, the match count, the file hash. In a paid audit you receive one of these for every placement, and the raw evidence is never discarded after classification.

{
  "event_id": "VE_CMP_XXXXX_CR-A_v1_EP-1041",
  "campaign_id": "CMP-XXXXX",
  "creative_id": "CR-A",
  "version_tag": "v1",
  "source_id": "SRC_POD-1",
  "content_id": "EP-1041",
  "timestamp": "2026-10-07T12:00:00+00:00",
  "match_type": "full",
  "duration_sec": 30,
  "evidence_tier": 2,
  "confidence": 0.99,
  "processing": {
    "engine": "meyppi-fingerprint 1.0",
    "attributed_version": "v1",
    "content_sha256": "9f2c…a41d (redacted)"
  },
  "evidence": {
    "offset_sec": 90.001,
    "covered_time_sec": 30,
    "coverage_ratio": 1,
    "match_count": 3350,
    "missing_head_sec": 0,
    "missing_tail_sec": 0
  }
}

Methodology

Master creatives are fingerprinted (Wang-style constellation fingerprinting) and matched against the published media with temporal alignment. Reference coverage, continuity, gap analysis, and alignment consistency determine each classification. When the evidence does not support a call, the placement is marked Insufficient Signal or Manual Review Required, and the reason is stated in the report.

Classification definitions

• Detected — Full: the creative aired, complete delivery.
• Detected — Partial: the creative aired, delivery incomplete (e.g. trimmed duration).
• Version Mismatch: a different version of the creative aired.
• Not Detected: no matching evidence found in the published episode.
• Insufficient Signal: media quality too low for a defensible result.
• Manual Review Required: evidence ambiguous; reviewed by an analyst.

Meyppi reports algorithmic findings from acoustic fingerprint evidence. Algorithmic confidence is not legal proof.