# C1449 — Test SP_cumulative at Shem and Flood

## Question

Do the Flood-only, Shem-only and both-node partitions agree under the same accepted source state?

## Sources

```json
[
  "Registered SP_cumulative source",
  "Named600 hinge source review"
]
```

## Opened utc

2026-09-29T01:15:12.578670+00:00

## Results

```json
{
  "Flood": {
    "source_legs": [
      3310,
      8680
    ],
    "images": [
      1330,
      8680
    ],
    "path2": [
      1406,
      2736,
      11416
    ],
    "path3": [
      6,
      4106,
      5436,
      14116
    ]
  },
  "Shem": {
    "source_legs": [
      3910,
      8080
    ],
    "images": [
      1930,
      8080
    ],
    "path2": [
      1406,
      3336,
      11416
    ],
    "path3": [
      6,
      4106,
      6036,
      14116
    ]
  },
  "Both": {
    "source_legs": [
      3310,
      600,
      8080
    ],
    "images": [
      1330,
      600,
      8080
    ],
    "path2": [
      1406,
      2736,
      3336,
      11416
    ],
    "path3": [
      6,
      4106,
      5436,
      6036,
      14116
    ]
  }
}
```

## Finding

SP Cumulative preserves its accepted head under all three partitions, matching the MT Regular response.

## Reassessment

Collect all retained intermediate nodes, rather than stopping at head totals.

## Checks

```json
{
  "expected_heads": true,
  "same_source_total": true
}
```

## Closed utc

2026-09-29T01:15:12.579182+00:00

## Record provenance

Exact record hash: `801f21f854c7c4b695ed24d21f789f9f741d06748d1a749d75bbb0ae47ed5445`

Source journal: `Research_Cycles/C1433_C1482/journal.json`