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C668 — Generate the whole alternating720/30 ladder

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Study sequence: Retained 720/30 ladder and 1470 calendar anatomy (C665–C671) · Calendar Keys, phase & Sothic

C668 — Generate the whole alternating720/30 ladder

Question

Can the source’s ten coordinates be recovered without separate date fitting?

Inputs

{
  "head": 4326,
  "core": 690,
  "flank": 30,
  "source": [
    4326,
    4296,
    3606,
    3576,
    2886,
    2856,
    2166,
    2136,
    1446,
    1416
  ]
}

Sources

[
  "Supplement A §1.3; admitted source ladder only"
]

Opened utc

2026-09-28T01:09:07.681958+00:00

Results

{
  "generated_nodes": [
    4326,
    4296,
    3606,
    3576,
    2886,
    2856,
    2166,
    2136,
    1446,
    1416
  ],
  "gaps": [
    30,
    690,
    30,
    690,
    30,
    690,
    30,
    690,
    30
  ],
  "same_rail_steps": [
    [
      720,
      720,
      720,
      720
    ],
    [
      720,
      720,
      720,
      720
    ]
  ],
  "width": 2910
}

Finding

The ten supplied positions are two720-step rails separated by30. Their interleaving generates the alternating30|690 path and2910 outer width. Source, dependency and generated-companion roles remain attached to the original positions; no new SKL transport is inferred.

Reassessment

Extract the six-node1470 cell and explain its alternative partitions.

Checks

{
  "whole_ladder": true,
  "gaps": true,
  "width": true
}

Closed utc

2026-09-28T01:09:07.682365+00:00

Record provenance

Exact record hash: ebb63304f38feeb2026c85d30e53b38622a7cd2260ae47abc076d873610e9378

Source journal: Research_Cycles/C0632_C0731/journal.json

Edition and provenance

C668.md

SHA-256 95ea2d3c27ee24997095286d72e760088193f265c81a939a6b568e9facb498bf

C480–C1634/Research_Cycles/C0632_C0731/journal.json#C668