# C1195 — Summarize the full joint observation ambiguity

## Question

How much rowwise ambiguity remains before any cross-row constraints are introduced?

## Inputs

```json
{}
```

## Sources

```json
[
  "C1192"
]
```

## Opened utc

2026-09-28T05:23:44.291779+00:00

## Results

```json
{
  "summary": {
    "path": "model/ordinary_joint_rounding_ambiguity_summary.json",
    "sha256": "43d77706b99348a303441412447f3e223d6ddb7189c1f94240874ff6c964f417",
    "bytes": 403
  },
  "histogram": {
    "1": 5,
    "2": 1,
    "3": 13,
    "4": 6,
    "5": 30
  },
  "products": {
    "MT": 22781250000,
    "SP": 2531250000,
    "LXX": 210937500000
  }
}
```

## Finding

The joint observations narrow every row to at most five possibilities but leave50 of55 rows ambiguous. Their product counts formal decompositions only, before source-labelled cross-row relations are imposed.

## Reassessment

Test whether source-equal remaining years create additional recovery in the early post-Flood block.

## Checks

```json
{
  "hist55": true,
  "ambiguous50": true,
  "all_positive": true
}
```

## Closed utc

2026-09-28T05:23:44.292454+00:00

## Record provenance

Exact record hash: `1a00412e5151981593aaa3ab8cff4219b45a435854c3a9ff4290ff75d33c1e5a`

Source journal: `Research_Cycles/C1132_C1431_Recovered/journal.json`