s927.py

from research import *
s=begin(927,'Prepare the final continuity checkpoint','What must the next research cycle inherit without reopening settled work?',{},['C831 predecessor','C832–926'])
doc="""# Continuity checkpoint for the C931 seal

Read this checkpoint together with the completed C931 journal record and final VERIFY.json. After that seal, C832–C931 is the completed100-action cycle and C932 is the next unused action. Do not replay the live numbered writers against the sealed journal.

## Active objective

Explain how chronological families fit together using the smallest useful source-aware grammar. Whole-family reconstruction and explanation take priority over repeated endpoint-boundary probing. C913 clarifies that digits, indices and operator domains can be computed; they are not necessarily extra primitive inputs. Global minimality or historical causation has not been established.

## Main result

A source object retains identity/state, labelled structure, measurement, representation policy, placement and interpretation. Shared operations measure and accumulate, change declared topology or component weights, transform admitted spans, place and compare whole fields, and retain or transform internal subdivisions.

Regular/cumulative/Rounded/BJ mechanisms from C831 remain inherited. The new cycle extends them across complete list, inverse, NT, Key-domain and Covenant carrier objects.

## Complete new fields

- File58: full Tishri matrix and four overlays; complete forward/reverse festival paths; Esau joint table and category rank; declared clean walk and changing female endpoint register; household regroupings. Categories and order retain distinctions that margins lose. The Sukkot daily non-bull allocation is explicitly assumed, not derived from marginal totals.
- File52c: all32 existing source pairs and64 original-span endpoints. Borrowing, core-length and trailing-zero branches explain the complete paired difference field. Fourteen long-core, sixteen short-core and two trailing-zero cases. No global affine column conversion and no second pass.
- NT: full78-row File43 display, primary77-row5390 span, complete22-node Luke/MT difference field,23-node restored comparison, exact residual response. E returns at indices0/23/46/69; P at0/69 on the fixedr0–76 domain. The full49/70 comparison has12 common boundaries490 apart. The NT display is schematic.
- Keys: reduced p/q preserves hZ on hqZ. A word preserves each intermediate grid on h*lcm(prefix denominators)Z. Nine two-Key and six distinct-three-Key formal inventories are closed. File46's whole head field has no common anchor making every E image integral. The five-row quarter family follows multiplier divisors1/3/13.
- Carriers: all six heads follow M=12C−11R. Their response field is60/770/−3/−30. The ordered11960→12000→12005→12075 path has changes40|5|70 and twelvefold480|60|840. The terminal144900 branch maps to147000/157500. A retained147 biography differs from uniform P transport by49/23 at the inner cut.

## Integrations to retain

Span D=C−R and generated placement W_lambda retain both original endpoints. The Actual and Rounded weighted12026 pairs have different spans9890/9900. Whole-frame motion leaves relative inputs fixed; source-fixed inverse anchor changes do not. Both festival walks lie on the common490 duration grid only at prefix counts0 and140. Cainan topology alignment retains source-specific130/460/70/BJ57 measurement roles. Retained versus uniformly scaled biographies share outer endpoints but differ internally by(k−1)l.

The source-only festival packet and regenerator demonstrate complete reconstruction without stored output dates. The constraint ledger separates automatic arithmetic consequences from additional source placements and roles.

## Source and scope controls

Latest File_52c snapshot SHA256 a5ea84562101158b60d0cf296765d6eff38e7a2abda4e74ad1b353dfd13b9530 remains primary. Second inversion is deferred; no new statistical tally or remote extension. Local supplied sources are frozen unchanged. Moses/1876 primers remain quarantined, and no1486 calculation or upstream Gear transport is introduced.

LXX main182/753, calculated571, appendix777 and nonoperative188 distinctions remain. Native LXX Cainan is present. SP Lamech counted/completed and inclusive ledger conventions remain local; official Terah145 controls the inherited cumulative comparison. Strict MT Actual4112 is distinct from standard4114; Jacob2006 is held in the NT comparison. Civil crossing is BC+AD−1; Rounded crossing and exact phases remain separately typed.

BJ inherited structure and unresolved source tensions remain. The36BC NT rail is not a new Nativity date. Covenant2081 is author-designated; offering2051/age15 is proposed. Cumulative1936 is the whole-year upper label, distinct from1936.5. Macro heads are generated coordinates; retained biography is not uniform transport.

## Verification and final artifacts

Six independent domain reviews passed170 bounded checks. The final text review passed12 checks after the C923 wording corrections. These are validation counts, not independent discoveries. C931 binds the exact final reading files, checkpoint and preflight. VERIFY.json and MANIFEST.sha256 bind the completed journal and payload.

Start with the integrated synthesis, then the one-page map. The technical companion, reading guide, claim map and full evidence packet provide increasing detail.

## Next research priority

First justify the remaining source choices before inspecting their outputs. Then test another complete source family against the current grammar with fixed inputs and no fitted operation. Reopen source boundaries only when resolving them changes a family-level conclusion. The current cycle does not authorize automatic continuation beyond C931.
"""
a=artifact('deliverables/490d_Chronological_Families_Checkpoint_After_C931.md',doc)
finish(s,{'continuity_checkpoint':a,'next_unused_after_seal':932},'The continuity checkpoint preserves the common model, complete-field results, review refinements and active source controls. It directs future work toward source choices and new complete-family transfer.','Run the current-source prefix replay before portable extraction.',{'next':932==931+1,'source_pin':'a5ea84562101158b60d0cf296765d6eff38e7a2abda4e74ad1b353dfd13b9530' in doc,'primitive_note':'not necessarily extra primitive' in doc,'scope':'beyond C931' in doc})