# KOPR R161 — Comet Analyzer display-encoding release-gate report **Base build:** `KOPR_CLEAN_BUILD_20260731_R160_COMET_ANALYZER_STYLE_EDITING_PERSISTENCE.zip` **Result:** `PASS_HEADLESS / RC` **Date:** 2026-08-01 ## 1. Scope R161 completes the qualification and distribution batch for the R158–R160 Comet Analyzer display-style feature. No scientific calculation or production rendering algorithm was changed in this batch. The CLEAN code is functionally the R160 implementation with an updated changelog; R161 adds QA gates, tests and release evidence in the separate QA archive. The qualified feature includes: - `Comet colour / channel marker` encoding; - `Channel colour / comet marker` encoding; - hollow pre-perihelion and filled post-perihelion observations; - neutral model curves with sparse comet markers in reverse mode; - Comets, Data channels, Perihelion side and Formulae legend blocks; - compact target style editing and dynamic channel Marker/Colour editing; - atomic JSON persistence of confirmed overrides; - a strict 15-marker capacity and deterministic 16-target fallback. ## 2. R161 QA additions Added to the QA archive only: ```text r161_comet_analyzer_display_encoding_release_gate.py r161_comet_analyzer_qt_smoke.py tests/test_r161_comet_analyzer_display_encoding_qt_state_machine.py ``` Updated QA metadata: ```text README_QA.md docs/CHANGELOG.md validate_performance_release.py SHA256SUMS.txt ``` The CLEAN archive contains none of the R161 test, benchmark or release-gate scripts. ## 3. Deterministic headless release matrix The R161 gate executes real Matplotlib artists using the production style resolvers. All 12 checks passed: ```text default_artist_encoding PASS reverse_artist_encoding PASS perihelion_fill PASS reverse_formula_artist PASS rendered_identity_legends PASS filter_palette_and_unknown_channel PASS reorder_preserves_identity PASS marker_capacity_and_fallback PASS persistence_fresh_instance PASS transactional_gui_contract PASS style_actions_are_view_only PASS qt_gate_artifacts_present PASS ``` This validates actual artist colour, marker, marker face, formula `markevery`, rendered-only legend content, known filter defaults, deterministic unknown filter colour, stable target/channel identity after reordering, unique markers through 15 targets, automatic default-mode fallback for 16 targets and exact persistence restoration in a fresh state instance. ## 4. Test results Focused R158–R161 suite: ```text 31 passed, 1 skipped ``` Cumulative R130–R161 Analyzer suite: ```text 234 passed, 2 skipped ``` The two skips are the real PyQt5 tests from R154 and R161. They were skipped because the build host does not contain Python PyQt5 bindings. Additional gates: ```text R158 display-style domain gate PASS R159 display-encoding renderer gate PASS R160 style-editing/persistence gate PASS R161 deterministic gate PASS_HEADLESS aggregate performance validator PASS ``` ## 5. Qt qualification status The following runtime state was confirmed on the build host: ```text Xvfb available: yes PyQt5 Python binding: no Qt offscreen run: NOT RUN Qt native run: NOT RUN ``` The strict gate correctly fails with `qt_runtime_unavailable`; it does not convert missing runtime coverage into a false PASS. Therefore this package is an RC and is not labelled fully GUI release-qualified. Required final commands on a Linux system with the application PyQt5 runtime: ```bash QT_QPA_PLATFORM=offscreen \ python3 r161_comet_analyzer_display_encoding_release_gate.py --require-qt python3 r161_comet_analyzer_qt_smoke.py --native ``` The first command must report `status: PASS`. The native run must be followed by the visual checklist from the R158–R161 implementation plan. ## 6. Distribution validation ```text Python syntax, CLEAN 98 files, 0 failures Python syntax, QA 377 files, 0 failures Markdown hygiene, CLEAN PASS; 5 Markdown files Markdown hygiene, QA PASS; 12 Markdown files CLEAN QA-artifact scan PASS CLEAN manifest 107/107 PASS QA manifest 432/432 PASS CLEAN ZIP integrity PASS QA ZIP integrity PASS ``` Archive SHA-256: ```text 57818245b9631583d2465ca18d5a9e3066e4fc292a212e8c3777bc1c84f3962e KOPR_CLEAN_BUILD_20260801_R161_COMET_ANALYZER_DISPLAY_ENCODING_GATE_RC.zip 0f0efd5845152255bde9a3fc2a748ecaa8eef3cdc29e4fa98f03bc585f02822d KOPR_QA_BUILD_20260801_R161_COMET_ANALYZER_DISPLAY_ENCODING_GATE_RC.zip ``` ## 7. Completion statement R161 is complete as an implementation, deterministic renderer/domain qualification and clean RC distribution batch. The only outstanding release condition is execution of the supplied real-PyQt5 offscreen gate and one native Linux visual smoke run on a host where PyQt5 is installed.