# Phase 4V — CS/US semantics and timescale audit

Status: COMPLETE-DIAGNOSTIC-ONLY. No training, selection, new timing policy or learned candidate.
Frozen instrumentation and five reference trials: exact PASS. Frozen checksums: PASS.
Only six old calibration odors were used; six reserved test odors remain unconsumed.

| Odor | Condition | mean KC events | mean target events | mean target events >=120ms |
|---|---|---:|---:|---:|
| ethyl (R)-(-)-3-hydroxybutanoate | short | 185.00 | 76.33 | 0.00 |
| ethyl (R)-(-)-3-hydroxybutanoate | sustained | 392.33 | 145.00 | 68.67 |
| ethyl (R)-(-)-3-hydroxybutanoate | offset | 386.00 | 145.00 | 68.67 |
| ethyl (R)-(-)-3-hydroxybutanoate | warmup | 185.00 | 65.00 | 7.00 |
| ethyl (R)-(-)-3-hydroxybutanoate | US25 | 184.00 | 65.00 | 0.00 |
| ethyl (R)-(-)-3-hydroxybutanoate | US90 | 185.00 | 65.00 | 0.00 |
| 3-penten-2-one | short | 202.00 | 74.00 | 0.00 |
| 3-penten-2-one | sustained | 411.00 | 143.33 | 69.33 |
| 3-penten-2-one | offset | 406.00 | 143.67 | 69.67 |
| 3-penten-2-one | warmup | 201.00 | 64.00 | 46.00 |
| 3-penten-2-one | US25 | 201.00 | 64.00 | 0.00 |
| 3-penten-2-one | US90 | 201.00 | 64.00 | 0.00 |
| (2R)-hexan-2-ol | short | 179.00 | 80.33 | 0.00 |
| (2R)-hexan-2-ol | sustained | 387.67 | 149.67 | 69.33 |
| (2R)-hexan-2-ol | offset | 384.67 | 150.00 | 69.67 |
| (2R)-hexan-2-ol | warmup | 173.00 | 84.00 | 49.00 |
| (2R)-hexan-2-ol | US25 | 173.00 | 84.00 | 0.00 |
| (2R)-hexan-2-ol | US90 | 173.00 | 84.00 | 0.00 |
| gamma-propyl-gamma-butyrolactone | short | 185.67 | 87.00 | 0.00 |
| gamma-propyl-gamma-butyrolactone | sustained | 390.33 | 156.33 | 69.33 |
| gamma-propyl-gamma-butyrolactone | offset | 391.67 | 156.67 | 69.67 |
| gamma-propyl-gamma-butyrolactone | warmup | 178.00 | 78.00 | 76.00 |
| gamma-propyl-gamma-butyrolactone | US25 | 178.00 | 78.00 | 0.00 |
| gamma-propyl-gamma-butyrolactone | US90 | 178.00 | 78.00 | 0.00 |
| 2-methyl butyl acetate | short | 176.67 | 95.00 | 0.00 |
| 2-methyl butyl acetate | sustained | 384.67 | 164.00 | 69.00 |
| 2-methyl butyl acetate | offset | 381.33 | 164.67 | 69.67 |
| 2-methyl butyl acetate | warmup | 166.00 | 88.00 | 86.00 |
| 2-methyl butyl acetate | US25 | 168.00 | 89.00 | 0.00 |
| 2-methyl butyl acetate | US90 | 166.00 | 88.00 | 0.00 |
| ethyl (S)-(+)-3-hydroxybutanoate | short | 192.67 | 65.00 | 0.00 |
| ethyl (S)-(+)-3-hydroxybutanoate | sustained | 401.00 | 134.67 | 69.67 |
| ethyl (S)-(+)-3-hydroxybutanoate | offset | 396.67 | 134.00 | 69.00 |
| ethyl (S)-(+)-3-hydroxybutanoate | warmup | 189.00 | 67.00 | 25.00 |
| ethyl (S)-(+)-3-hydroxybutanoate | US25 | 190.00 | 68.00 | 0.00 |
| ethyl (S)-(+)-3-hydroxybutanoate | US90 | 189.00 | 67.00 | 0.00 |

DAN requests: 48; accepted new spikes: 48; preexisting: 0; refused: 0.
US is a force request, not measured dopamine. Teaching trace is sampled at the scheduled emission step; synaptic arrivals are 1.8ms later.
Observation does not establish biological time scaling or associative memory. Literature boundaries are in phase4v-literature.md.
No game, decoder, RL, visual input, gain/threshold changes, eligibility changes, or plastic-mask changes.