Workstream E10 of the UK-migration master epic #665; child of #145. The workstream's exit: the microcosm-built spine replaces the certified incumbent H5 in the national build.
Scope
- One driver path running the full ingest+imputation
StagePlan at the scale ladder's rungs (smoke/dev/full), every attempt — pass, fail, or abort — landing a Logbook row.
- Whole-spine parity: candidate extraction (extraction-only mode added to
tools/build_uk_efrs_parity_reference.py) diffed against the committed 145-column reference — per-column nonzero-share deltas, entity counts satisfying the record-count identity, missing/extra columns through a signed register. Weighted totals across the 131-column licensed register via --emit-weighted-totals on both sides (reference sha-verified; deltas published SDC-safely). New-spine baselines recorded with the weighted-integrity instrument — these become the candidate thresholds for arming uk_input_mass_parity and uk_qrf_tail_concentration.
- Swap acceptance: a control build (certified H5) and a candidate build (microcosm spine at the grain the joint E/D adjudication settles;
verify_certified_uk_candidate extended with a second certified identity — never a bypass). tools/compare_uk_h5_payload.py with a --structure-only verdict mode (same surface; values differ only where signed); the full battery in release-candidate posture; macro_realism declared for the assembled spine.
- Signed-differences register (one committed JSON): every intentional deviation — the CGT weight mechanism, the defect fixes, the RNG-stream class, the QRF-implementation class, net-new columns — with id, magnitude evidence, adjudicator, and date. Anything differing that is not in the register is a defect.
- Calibration-seam rehearsal: the rowwise candidate driver consumes the candidate staging H5, calibrates through the front door, and the battery passes there too.
Acceptance
The WS-E epic bar (#145): the microcosm-built spine replaces the certified incumbent H5 in the national build; eFRS parity fixtures beat or match the incumbent on the frozen register with differences signed; determinism covers every stochastic assignment on the live path. Final calibrated sign-off additionally requires WS-D (#623) landed and #630 adjudicated.
Depends on: E2–E9; the joint E/D spine-grain adjudication; #630 for the release-candidate posture.
Workstream E10 of the UK-migration master epic #665; child of #145. The workstream's exit: the microcosm-built spine replaces the certified incumbent H5 in the national build.
Scope
StagePlanat the scale ladder's rungs (smoke/dev/full), every attempt — pass, fail, or abort — landing a Logbook row.tools/build_uk_efrs_parity_reference.py) diffed against the committed 145-column reference — per-column nonzero-share deltas, entity counts satisfying the record-count identity, missing/extra columns through a signed register. Weighted totals across the 131-column licensed register via--emit-weighted-totalson both sides (reference sha-verified; deltas published SDC-safely). New-spine baselines recorded with the weighted-integrity instrument — these become the candidate thresholds for arminguk_input_mass_parityanduk_qrf_tail_concentration.verify_certified_uk_candidateextended with a second certified identity — never a bypass).tools/compare_uk_h5_payload.pywith a--structure-onlyverdict mode (same surface; values differ only where signed); the full battery in release-candidate posture;macro_realismdeclared for the assembled spine.Acceptance
The WS-E epic bar (#145): the microcosm-built spine replaces the certified incumbent H5 in the national build; eFRS parity fixtures beat or match the incumbent on the frozen register with differences signed; determinism covers every stochastic assignment on the live path. Final calibrated sign-off additionally requires WS-D (#623) landed and #630 adjudicated.
Depends on: E2–E9; the joint E/D spine-grain adjudication; #630 for the release-candidate posture.