Measured product lead custody receipt.
A Surrogate Nose For AI
Surrogate receptor-response codec · ZPE-Smell · PyPI zpe-smell v0.1.0 · github.com/Zer0pa/ZPE-Smell
ZPE-Smell does not smell. It takes a molecule and produces a deterministic surrogate receptor-response packet — a fixed barcode you can store, retrieve, and compare.
On a 35-episode benchmark the packet survives encode and decode at Spearman 0.9996, retrieves the right neighbor at NN@1 94.29%, and never confuses a mixture, fiber, or adaptation category with another. It is a tool for cheminformatics retrieval and benchmark calibration. It is not empirical olfaction.

Olfactory computation has no shared response barcode. each pipeline encodes a molecule differently, so the same query returns different shortlists.
One molecule, one neighborhood — nothing aliases.
Olfaction datasets each carry receptor, geometry, and nuisance information differently. Two pipelines querying the same molecule rarely return the same shortlist, and there is no shared way to ask whether they should.
ZPE-Smell builds a single deterministic response packet for any candidate molecule, then tests whether the response order and nuisance boundaries survive round-trip. On a fixed 35-episode benchmark the packet holds Spearman 0.9996, retrieves the right neighbor at 94.29%, and refuses to alias mixtures, fibers, or adaptation responses into each other.
Every metric traces to a 35-episode surrogate benchmark. collisions: zero.
Across 35 surrogate episodes, response packets stay distinct. collision = 0.
Committed proof artifacts replay the 35-episode surrogate benchmark to Spearman 0.9996, NN@1 94.29%, and 0.00% collision across mixture, fiber, adaptation, and transport-attack families. Each surrogate episode resolves to one and only one response barcode.
Ablations land where they should: receptor-only at 0.9648, geometry-only at 0.9862, full vector at 0.9996. The replay is what we own. The empirical olfactory claim is what we explicitly do not.
Surrogate receptor-response panel only — no empirical olfactory perception, no biological receptor validation, no applied digital-smell product. Public PyPI zpe-smell 0.1.0 is stale pending release. Proof and reference artifacts still cite source_commit = 48507cbfcdc5; source, license, and provenance drift remain open.
EVERY ODORANT gets a receipt.
The ambition is a custody layer for computational smell. When every candidate molecule carries a reproducible response barcode — with its scope, its non-claims, and its nuisance boundaries spelled out — cheminformatics teams, QA labs, and standards bodies can argue over thresholds instead of definitions.