## Jubilees extends the grammar through weighted deletions and retained paths

Jubilees supplies another test of the same source-based operations. File53’s22-head list becomes23 when Kainan is retained between Arpachshad and Shelah. The first twelve head positions stay fixed; the ten later positions each shift by one. Its separate chronological reconstruction removes Kainan’s57-year interval while holding Shelah fixed:

| Path | Creation | Flood | Kainan | Shelah | Intervals |
|---|---:|---:|---:|---:|---|
| Original | 3856 | 2549 | 2482 | 2425 |1307+67+57|
| Secondary expunged |3799|2492|removed|2425|1307+67|

The inherited SP7+1300 structure survives. The index changes by one, but its time weight is57; the controlled LXX row contributes130 regular or460 cumulative. A common deletion operation therefore acts on differently measured source rows. No BJ Kainan lifespan is inferred.

The source’s2450→2400 comparison also depends on retained roles. Fall3849→rest1399 measures2450; compressedCreation3799→the same rest measures2400. The difference50 is57−7: deletion plus the Creation/Fall offset. The associated four-node reflection uses original displayed comparison positions with compressedCreation; it remains separate from the expunged chronology.

The clearest whole-path result concerns Abraham’s descendants. File20’s reconstructed biological spine and its surface jubilee ledger have these subdivisions to the common Conquest endpoint:

| Source state | Abraham→Isaac→Jacob→Entry→Conquest | Total |
|---|---|---:|
| Biological reconstruction |100+60+130+285|575|
| Surface ledger |111+59+125+280|575|
| Change |+11−1−5−5|0|

Internal boundaries move while the outer575 survives. Entry and Jacob’s death both move five AM years, preserving his final17 years; the surface lifespan remains142 against the stated147. Its Isaac–Jacob interval59 also remains in tension with the source prose referring to70. All six supplied jubilee timestamps nevertheless regenerate under the literal49-year formula. These differences belong to a reproducible surface ledger, whose historical explanation remains open.

The reconstructed290-year Abraham-to-entry body has six supplied nodes and four internal boundaries. Its finer intervals100|15|45|15|115 yield both biological100|60|130 and sacrifice/death115|60|115 when different source cuts are retained. This extends the same subdivision-sensitive grammar used for Rounded chronology.

Finally, the Creation–Conquest path460|1490|460|40 contains two translated460-year bookends. Expanding only the call–Exodus460 to500 retains the earlier1950 and completes2450. File43’s declared Lukan and Matthean heads also span2450, measured as35×70 rather than50×49. Their common duration connects two source constructions while their events and genealogical indices remain distinct.

*Sources: Files20 §§7A2,7A.10,8.1,8.6;53 §§2–3A,7,13A;43 §§2–4. C792–C810.*