# K2 on pptx/odt/rtf: the denominator, measured, 2026-09-04

Order `20260904T190727Z-589245685-from-.claude`. Closes a declared gap —
`docs/2026-09-02-korpuskjoring-k1-k2.md` already recorded `pptx`, `odt` and
`rtf` as "denominator 0 — unmeasured by construction" in K2/trinn1. This
report re-measures that denominator with `ls`/`find` against ground truth,
per Verifiseringsloven ansikt 4 (a measured absence needs its query proven
able to find, not just an empty result), rather than trusting the earlier
doc's number as still current.

Ordered as two steps: measure the denominator first, then only run K2 if the
denominator is non-zero. It stayed zero, so step 2 (K2 fidelity) was never
started — no code, no test, no fixture, nothing to gate under the Iron Law.

## Step 1 — the denominator

**"K3-korpuset" is not a second directory.** Both `docs/2026-09-02-korpuskjoring-k1-k2.md`
(K1/K2, 02.09) and `docs/2026-09-04-k3-arm-c.md` (K3, 09.04) run their
`okf_corpus_run.py` invocation against the same path:
`~/corpora/okf-telling-20260829/K2/trinn1`. There is no separate K3 corpus
directory — the order's parenthetical ("samme kataloger K1/K2-målingene 02.09
brukte") confirms this rather than naming a second one. One directory,
counted once.

```
CORPUS=~/corpora/okf-telling-20260829/K2/trinn1
find "$CORPUS" -maxdepth 1 -type f | wc -l          # -> 43
find "$CORPUS" -maxdepth 1 -iname '*.pptx' | wc -l  # -> 0
find "$CORPUS" -maxdepth 1 -iname '*.odt'  | wc -l  # -> 0
find "$CORPUS" -maxdepth 1 -iname '*.rtf'  | wc -l  # -> 0
```

| format | files in `K2/trinn1` (= K3's corpus) |
|--------|---------------------------------------|
| `pptx` | 0 |
| `odt`  | 0 |
| `rtf`  | 0 |

`N = 43` matches the file count both prior docs report for this directory —
verified here again with `find`, not carried over from STATE or a prior doc.

**Known-positive control** (the query can find, so the 0 above is a measured
absence, not a broken query): the same directory, same command shape, a
format known present:

```
find ~/corpora/okf-telling-20260829/K2/trinn1 -maxdepth 1 -iname '*.docx' | wc -l  # -> 5
```

5/5 found, exit 0. The pptx/odt/rtf queries above ran with the identical
shape and returned nothing — an absence, not a silent failure.

There is also a `K2/trinn2` directory (43 further files, byte-identical to
`trinn1` per `docs/2026-08-29-telling-offentlig-prosjektkorpus.md § 6`,
`sha256` equal 43/43) and a `K1` directory (0 files on disk — K1 Skram was
never downloadable, same doc § 5). Neither was part of the 02.09 K1/K2
measurement or the 09.04 K3 measurement, and the order scopes this
re-measurement to "the same directories K1/K2 used" — so neither is counted
here. Naming them is the whole of what this report says about them.

**Sum across both named corpora (K2/trinn1 and "K3-korpuset", which are the
same directory): 0.** Per the order, that ends the work at step 1 — K2 for
`pptx`/`odt`/`rtf` is not measurable on this corpus, and step 2 does not run.

## Which public corpus has these formats

The order asks this report to name a public corpus that already has
`pptx`/`odt`/`rtf` files, without fetching anything new. `~/corpora/` holds
exactly one corpus directory (`okf-telling-20260829`), and no file anywhere
under it matches `*.pptx`, `*.odt` or `*.rtf`:

```
find ~/corpora -iname '*.pptx' -o -iname '*.odt' -o -iname '*.rtf'   # -> no output, exit 0
```

**No public corpus with these formats is on hand.** Naming one would require
new research (a new download, a new search) — out of scope for this order,
which asked only to check what already exists locally. This is reported as
"not verified", not as "no such corpus exists" (Verifiseringsloven ansikt 4):
absence of a locally-known example is not evidence none exists publicly.

## Bundle integrity

No bundle was touched — step 2 never ran, so there is nothing to
materialize. The only operations against the corpus were read-only `find`
commands. As a sanity check anyway (the aggregate-hash trap from
`docs/2026-09-04-cid-andel-k2.md` — `sort` needs `LC_ALL=C` or the hash is an
artifact of locale, not content):

```
LC_ALL=C find ~/corpora/okf-telling-20260829/K2/trinn1 -type f -print0 \
  | LC_ALL=C sort -z | xargs -0 shasum -a 256 | LC_ALL=C sort | shasum -a 256
```

Before and after the counting commands above: both runs gave
`4f093df27adb081c99c3e08ad12aab1e56f4429bcf900bdf80bc01cf21e104ce`. Identical —
byte-unchanged, as expected of read-only `find`/`ls`.

## Verification log

| Claim | Command | Outcome |
|---|---|---|
| K2/trinn1 has 43 files | `find … -maxdepth 1 -type f \| wc -l` | 43 |
| 0 pptx | `find … -iname '*.pptx' \| wc -l` | 0 |
| 0 odt | `find … -iname '*.odt' \| wc -l` | 0 |
| 0 rtf | `find … -iname '*.rtf' \| wc -l` | 0 |
| Query can find (known-positive) | same shape, `-iname '*.docx'` | 5 |
| K3 uses the same directory | `grep -n corpus docs/2026-09-04-k3-arm-c.md` | `--corpus …/K2/trinn1` |
| No pptx/odt/rtf anywhere under `~/corpora` | `find ~/corpora -iname '*.pptx' -o -iname '*.odt' -o -iname '*.rtf'` | no output, exit 0 |
| Corpus byte-unchanged | aggregate `LC_ALL=C` sha256, before and after | identical hash both times |

## Result

`pptx`, `odt`, `rtf` in K2/trinn1 (the same directory the K1/K2 and K3
measurements used): **0 files in both named corpora — K2 for these formats
is not measurable here.** No K2 step 2 work was started. No public corpus
with these formats is currently known locally; identifying one is new
research and out of scope for this order.