ACR Live Match Monitor

Simulated smart TVs fingerprint “live content” and identify it with a nearest-neighbor search on Harper’s built-in HNSW vector index — app logic and data in one process.

Simulated TVs Capture noise

Matches per second

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from this browser tab

Server search p50

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HNSW search inside Harper

End-to-end p95

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browser → match → browser

Match accuracy

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right channel, ±2 s

Match latency, rolling 60 s

View as table

Time	p50 (ms)	p95 (ms)

TV wall — live identifications

Fingerprints are synthetic 128-dim embeddings (smooth per-channel random walks). Matching runs in Harper via Fingerprint.search({sort:{attribute:'embedding', target}}). Browser QPS is a visualization, not a benchmark — use scripts/simulate.mjs for load numbers.