C01 — The 13×529 Creation bridge reaches 8125 and joins the 17×529 interface

21 September 2026 · First bounded report in Dean’s Creation/529 redirect.

The new 13-fold family has source-qualified endpoints at all three stages: 6877 → 7475 → 8125. The second expansion reaches an existing SP Noah-birth station. That station is also an endpoint of the retained 8993 comparison in Report 09. This supplies a direct endpoint interface between the two families.

This report supplements the recovered Reports 01–10. It does not reconstruct or claim completion of interrupted Reports 11–25. Canonical source files and the earlier finite graph remain unchanged.

1. Two complete three-stage witnesses

Hold the full-430 frame, Terah +60 OFF, and regular MT/SP Cainan OFF. Creation remains Normal/G2. Its ordinary SP field is 4422t/4421n → 4415t/4414n BC. Selecting an internal boundary does not shift that field by a Gear.

Advance each fixed Creation member by the three widths:

For the first row, the Nisan calculations are:

The Tishri calculations give the same widths. All AD endpoints are reflected source boundaries, not predictions of future events. The paired Mirror axis remains January AD 1, with no civil year zero.

The exact expansion and its endpoint gains are:

The 598 gain connects an MT Flood start to the selected adjacent-Gear MT Noah birth. The 650 gain connects that MT Noah birth to the same-Gear SP primary Noah birth. Thus the second gain has an existing source correspondence, just as the first gain has an existing cross-Gear comparison. Noah’s coherent lifespan remains 950 and its same-Gear birth-to-Flood interval remains 600.

This closes the new handoff’s stated 8125 endpoint question within this specific domain. It does not establish endpoints for every expansion, selector or anchoring choice.

2. The 299 midpoint survives within the completed chain

The two intermediate 7176-year landings are SP companion Noah deaths:

The widths measured from the fixed SP Creation member are therefore:

The first three widths form the 299 ladder; the last increment is 650. The companion midpoint remains specifically SP Noah death. No MT companion or new Shem midpoint is introduced.

3. Direct connection to Report 09’s 8993 family

The original evidence names two relevant SP Noah/Flood arcs, N02 and N04. Their cumulative side is LXX Cainan OFF. Both retain a 598 interval on each side of the Mirror.

The left boundaries differ by 868 in both rows:

This is an actual concatenation of comparison intervals with a shared endpoint. For N02, the complete chain of paired boundaries is:

Hence:

N04 gives the same lengths with its own source labels. These are qualified comparisons between retained records, not one merged historical chronology or new executable edges in the old graph.

There is also a finite comparison square. For the first Creation member, its four widths are:

Each horizontal comparison adds 650; each vertical comparison adds 598. Both orders end at the same SP Noah boundary. The second witness has the analogous G3 Flood/G2 birth square. The intermediate 7527 is a valid comparison width even though it is outside the square-carrier sequence. This distinguishes source-supported composition from a demand that every connecting interval be a multiple of 529.

4. Integration with the other 529 multiples

For any retained multiplier k, two applications of 25/23 give:

The 13-fold role is distinguished by 598 as its intrinsic first expansion gain. The earlier 10-fold gain is 460, the cumulative Cainan difference; the 20-fold gain is twice that amount. For the new 13-fold witnesses, the second gain is the independently retained 650 MT/SP displacement. This is stronger than adding an unqualified divisible number to a list, while the gains’ distinct source roles remain essential.

Two additional arithmetic relations help organize the register:

The first relation has the endpoint difference decomposition 598+650+868 established above. It does not establish two consecutive 1058 source operations. The second is a scalar balance between the 13+17 and 10+20 families. Under the two expansions its common total becomes 17250 and 18750. No common intermediate source boundary making these sums the same chronological path is established here.

The 12- and 13-fold families also meet at length 6900 by different conversions:

Their source endpoints remain different. In particular, 6877 expanded twice by 25/23 is 8125; applying 300/299 after its first expansion gives 7500.

5. Finite limits and the retained 7500 diagnostic

The complete three-stage event chains occur at SP Creation offsets 2 and 4 only, in the stated domain. The wider individual endpoint support is:

• 6877 reaches MT Flood starts at offsets 0/2/4.
• 7475 reaches MT Noah births at offsets 2/4/6.
• 8125 reaches all six SP Noah-birth stations at offsets 1–6: companions at 1/3/5 and primaries at 2/4/6.
• At offset 6, 7475 and 8125 have G3 Noah-birth witnesses, but the 6877 landing is AD 2462t/2463n, outside the admitted MT Flood field. No G4 is introduced.
• At companion offsets, 8125 has an SP endpoint; the intermediate 7475 landings do not acquire unsupported MT companion births.

The new handoff’s same-outer-endpoint 7500 construction also checks:

The two routes select different ordinary Creation members and G1/G2 Flood starts. The apparent +30 field remains a separately declared comparison. Both local outward corrections at one held ordinary pivot instead produce 7502. The analogous G3 apparent-boundary candidates remain outside the fixed apparent week.

No Gear is applied to Creation or any regular node before Noah. SP companions remain local to Noah/Shem; Flood closes retain their independent event role. Both quarantined primers, Rounded chronology, localized −33 and upstream Gear transport remain inactive. No new categorical certificate or revised graph count is claimed.

6. Evidence and next step

The accompanying package freezes seven inputs: the new handoff, current File_18 and File_09, Report 09 and its prior result JSON, its source-selection certificate, and the comprehensive Mirror handoff. evidence/check_c01.py reconstructs the source rows, generates the endpoint registry, checks both seasonal civil spans, reproduces the two 299 chains and 7500 routes, tests the outside-field cases, and checks the shared N02/N04 endpoints against the original evidence.

Result: 194 exact checks pass, including input integrity checks. These are verification assertions, not independent numerical witnesses. The JSON preserves all tested translations and rejected endpoint completions. The historical ten-step campaign was not rerun.

The principal new result is the source-supported 8125 completion and its shared-endpoint connection to 8993. A Shem analogue remains unestablished.

Best next bounded step: test the permitted Shem endpoint field for an independently sourced 299+299 midpoint, preserving each Gear, person and rail label. High is sufficient.