# C980 — Counts before rounded date labels

## Question

What fails if the capacity is formed from independently rounded dates?

## Inputs

```json
{}
```

## Sources

```json
[
  "C954",
  "C955",
  "C978"
]
```

## Opened utc

2026-09-28T03:51:27.783973+00:00

## Results

```json
{
  "count_first": [
    845,
    720,
    655
  ],
  "date_labels_first": [
    846,
    716,
    651
  ],
  "status": "diagnostic operation comparison; not a canonical Rounded date table"
}
```

## Finding

Rounding counts gives845/720/655; rounding the two date labels first gives846/716/651. Resolving the interval and counting convention before rounding is essential.

## Reassessment

Trace the known SP residual through the cap’s changed rows.

## Checks

```json
{
  "count_values": true,
  "date_values": true,
  "different_operations": true
}
```

## Closed utc

2026-09-28T03:51:27.784265+00:00

## Record provenance

Exact record hash: `510acbd71e927cf68a3ad29db304ad37070d33a3e4fe6488e329e455f919521c`

Source journal: `Research_Cycles/C0932_C1131/journal.json`