Four constructed participant codes, eight completed trials and one excluded scripted rehearsal. Start with README.txt. The actual app is not included. Open the evidence folder for authoritative JSON and the original dictionary.
Protocol fingerprint: 8cf5338cb1d15559c01ab42936ab1e5dfd9f7307f4dcfb503fdd0154e4cd5f13
Data companions / Constructed demonstration
Read the numbers behind the graphs.
These native text tables reproduce the demonstration analysis without relying on colour or screenshots. A, B and C retain the source works below. Use the ZIP’s six graph CSVs for unrounded values.
- A: Wheat Field with Cypresses (met-436535)
- B: Self-Portrait with a Straw Hat (obverse: The Potato Peeler) (met-436532)
- C: Venice, from the Porch of Madonna della Salute (met-437853)
All values are constructed. Percentages use active time, including unassigned time, as denominator. Differences are percentage points (pp). Display values round to two decimals. Tables scroll horizontally on narrow screens; focus a table to scroll with the keyboard.
Transition network and selected time — DEMO-P001, clear glass
This is the session shown in the transition-network screenshot: A is selected for 24,000 ms, with four visits and three transitions from A to B. Edges count consecutive selections of different works. They describe recorded selections, not gaze paths or artistic influence. Same-work transitions are inapplicable and omitted.
| Work | Selected ms | Active-time share % | Visits | Returns |
|---|---|---|---|---|
| A | 24000 | 40 | 4 | 3 |
| B | 18000 | 30 | 3 | 2 |
| C | 18000 | 30 | 3 | 2 |
| From | To | Transitions |
|---|---|---|
| A | B | 3 |
| A | C | 0 |
| B | A | 0 |
| B | C | 3 |
| C | A | 3 |
| C | B | 0 |
Linked condition comparison — DEMO-P001
The same illustrative participant has one clear-glass and one magnifying-glass trial. Difference = magnifying minus clear. These descriptive differences do not establish a causal effect.
| Work | Clear % | Magnifying % | Difference pp |
|---|---|---|---|
| A | 40 | 35 | -5 |
| B | 30 | 35 | 5 |
| C | 30 | 30 | 0 |
Participant comparison — four constructed pairs
Eight completed trials enter this summary. The excluded rehearsal does not. Average repeated trials within each participant and condition first, then give each participant equal weight; here each has one trial per condition. Paired n counts people, not pointer events. The following table shows means, followed by all 24 participant–condition–work values.
| Work | Clear mean % | Magnifying mean % | Mean paired difference pp | Paired n |
|---|---|---|---|---|
| A | 36.04 | 32.29 | -3.75 | 4 |
| B | 31.67 | 35.42 | 3.75 | 4 |
| C | 32.29 | 32.29 | 0.00 | 4 |
| Participant | Condition | Work | Active-time share % |
|---|---|---|---|
| DEMO-P001 | DOCS-CLEAR | A | 40 |
| DEMO-P001 | DOCS-CLEAR | B | 30 |
| DEMO-P001 | DOCS-CLEAR | C | 30 |
| DEMO-P001 | DOCS-ZOOM | A | 35 |
| DEMO-P001 | DOCS-ZOOM | B | 35 |
| DEMO-P001 | DOCS-ZOOM | C | 30 |
| DEMO-P002 | DOCS-CLEAR | B | 34.17 |
| DEMO-P002 | DOCS-CLEAR | C | 35.83 |
| DEMO-P002 | DOCS-CLEAR | A | 30 |
| DEMO-P002 | DOCS-ZOOM | B | 39.17 |
| DEMO-P002 | DOCS-ZOOM | C | 30.83 |
| DEMO-P002 | DOCS-ZOOM | A | 30 |
| DEMO-P003 | DOCS-CLEAR | C | 33.33 |
| DEMO-P003 | DOCS-CLEAR | A | 36.67 |
| DEMO-P003 | DOCS-CLEAR | B | 30 |
| DEMO-P003 | DOCS-ZOOM | C | 38.33 |
| DEMO-P003 | DOCS-ZOOM | A | 31.67 |
| DEMO-P003 | DOCS-ZOOM | B | 30 |
| DEMO-P004 | DOCS-CLEAR | A | 37.50 |
| DEMO-P004 | DOCS-CLEAR | B | 32.50 |
| DEMO-P004 | DOCS-CLEAR | C | 30 |
| DEMO-P004 | DOCS-ZOOM | A | 32.50 |
| DEMO-P004 | DOCS-ZOOM | B | 37.50 |
| DEMO-P004 | DOCS-ZOOM | C | 30 |
Region measurements — cypress polygon
The frozen DOCS-CYPRESS-REGION polygon belongs to work A. Boundary points count as inside. Pointer-centre dwell integrates retained intervals; returns = max(0, entries − 1). Clear-glass lens dwell can be recorded while magnified dwell is zero. These measures do not describe the lens footprint or eye position. Vertices and revision are in the download.
| Participant | Condition | ROI dwell ms | Entries | Returns | Magnified dwell ms |
|---|---|---|---|---|---|
| DEMO-P001 | DOCS-CLEAR | 6000 | 4 | 3 | 0 |
| DEMO-P001 | DOCS-ZOOM | 4500 | 3 | 2 | 4500 |
| DEMO-P002 | DOCS-CLEAR | 4500 | 3 | 2 | 0 |
| DEMO-P002 | DOCS-ZOOM | 4500 | 6 | 5 | 4500 |
| DEMO-P003 | DOCS-CLEAR | 6000 | 4 | 3 | 0 |
| DEMO-P003 | DOCS-ZOOM | 5500 | 7 | 6 | 5500 |
| DEMO-P004 | DOCS-CLEAR | 4500 | 3 | 2 | 0 |
| DEMO-P004 | DOCS-ZOOM | 4500 | 3 | 2 | 4500 |
The conceptual research-flow diagram and validation roadmap describe procedure and work status; they contain no numeric results. Their stages and qualifications are also written as selectable text on this page. Evidence annotations and accounts remain readable in the retained JSON, rather than being turned into numerical scores.
Cite / Version / Inspect
Citation and release history
Recommended software citation: Museum of One. (n.d.). Encounter Differential (Version 2.0.0) [Computer software; working prototype]. museumofone.art/encounter-differential/. State the exact version used and the programme documentation revision, 21 October 2026, separately.
The original software release date is not established here; n.d. avoids assigning the documentation date to a binary release. No DOI or external registration is asserted. The downloadable package includes CITATION.cff and this release record.
Machine-readable software citation — CITATION.cff
cff-version: 1.2.0 message: "If you use Encounter Differential, cite the software version and the documentation revision separately." type: software title: "Encounter Differential" version: 2.0.0 authors: - name: "Museum of One" url: "https://www.museumofone.art/encounter-differential/" abstract: "Local research instrument for documented artwork encounters, versioned protocols, regions of interest, first accounts and inspectable evidence exports. Working prototype; empirical validation remains planned." keywords: - curatorial research - artwork encounters - research software - post-interpretive criticism
Demonstration study 1.0.0
2026-10-21 · Public documentation package
- Constructed eight-trial comparison and excluded rehearsal retained with original evidence checksums.
- Protocol, region definitions, accessible graph tables, CSV derivatives and independent verification instructions.
- Museum pilot protocol 0.1.0 included as a draft for review.
Programme documentation 1.1.0
2026-10-21 · Public documentation revision
- Downloadable demonstration, accessible data companions, citation and release history.
- Visual programme page, mobile card layouts and enlarged-image viewer.
Encounter Differential 2.0.0
Original release date unconfirmed · Current working prototype; package version verified 2026-10-21
- Local research database; 2–8 artwork encounters; versioned protocols and named image regions.
- Clear and magnifying looking glass, first accounts, evidence annotations and participant comparisons.
- Evidence ZIP, tidy tables and independent recomputation material. Original binary release date is not established by this documentation record.