Glossary

False match

Two different products wrongly treated as the same one. The mistake Vessim works hardest to avoid. Measured on 60 real product photos, the line Vessim uses made zero false matches across 1,762 pairs of different products. As of October 23, 2026, the closest two different products in the index sit 12 bits apart, past the 10-bit line.

Updated October 26, 2026In the full glossary →

Fingerprint · the same photo0 bits apart
33b6 6f5b 2204 91f2
33b6 6f5b 2204 91f2

Merged: “12.5 M Durable Flagpole Halyard Rope Flags Pole Rope Nylon Braided Cord White”

Hamming distance · a near miss14 bits apart
6337 9cd8 9262 26e6
629f 98b0 a662 e6a6

Kept apart, same title: “Magnetic Phone Case Stand Drop-proof”

Why it matters here

At Vessim.

One false match would show you a different product at a lower price, which is worse than showing nothing.

How it worksThe whole method, from a photo to every price.
Put it to work

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