# C912 — Create a compact source-only regeneration example

## Question

Can the entire paired festival field be generated without storing any output dates?

## Inputs

```json
{}
```

## Sources

```json
[
  "File58 declared festival order,scale7,anchor1859"
]
```

## Opened utc

2026-09-28T02:58:23.078241+00:00

## Results

```json
{
  "source_only_packet": {
    "path": "model/compact_festival_source_packet.json",
    "sha256": "e15e6c15d40083be9a53f5dd12ceb506d17ef68be7ed630a9869420eb250ce1a",
    "bytes": 285
  },
  "regenerator": {
    "path": "evidence/regenerate_festival.py",
    "sha256": "eb4bc86e3467bc6214904243d5bd73b8a64ecc7927ef5df03a4f975b38b9676a",
    "bytes": 406
  },
  "generated_fields": {
    "forward": [
      1859,
      1649,
      1446,
      1250,
      1061,
      879,
      704,
      536,
      466
    ],
    "reverse": [
      1859,
      1789,
      1621,
      1446,
      1264,
      1075,
      879,
      676,
      466
    ]
  }
}
```

## Finding

One eight-weight source packet, two declared orders, a scale and an anchor regenerate all18 boundaries. Generated dates have been removed from the input. This is explanatory compression conditional on source premises, not source-independent prediction.

## Reassessment

Clarify which retained information is primitive and which can be computed.

## Checks

```json
{
  "no_output_dates": true,
  "both_fields": true,
  "one_source_sequence": true
}
```

## Closed utc

2026-09-28T02:58:23.078816+00:00

## Record provenance

Exact record hash: `a7d8141435ff3bba6339292dbbb47ff0ab4ff3012f7509fb4e8422ef4172f6d3`

Source journal: `Research_Cycles/C0832_C0931/journal.json`