# C670 — Connect the1470 cell with calendrical intercalation

## Question

Which part of the shared1470 is the same anatomy, and which part retains distinct units?

## Inputs

```json
{
  "cell_units": [
    48,
    1
  ],
  "month_days": 30,
  "ledger": [
    6,
    2190,
    1470
  ],
  "civil_year_days": "1461/4"
}
```

## Sources

```json
[
  "Supplement A §2.2; File12 calendrical physics"
]
```

## Opened utc

2026-09-28T01:09:30.920569+00:00

## Results

```json
{
  "final_block": 1470,
  "ledger_days": 14610,
  "year_equivalent": "1461/4",
  "cell_30_units": 49
}
```

## Finding

The supplied intercalation final block has the same48+1 anatomy:4×360+30=1470 days. Its full ledger6×2190+1470=40×365.25 is a distinct calendrical realization; it does not turn the chronological1470-year cell into days.

## Reassessment

Consolidate File70’s indexed paths and Supplement A’s retained-flank family before phase analysis.

## Checks

```json
{
  "final": true,
  "ledger": true,
  "year_equivalent": true
}
```

## Closed utc

2026-09-28T01:09:30.921473+00:00

## Record provenance

Exact record hash: `77c4d361acbd2c726dbc617df8e8fe7c8aa3cc812c751cb2342a1855981e4bfa`

Source journal: `Research_Cycles/C0632_C0731/journal.json`