# AP54 — source of record

**Verified 13 September 2026** by the paragraph-level test of record. Every source paragraph of 60
characters or more is present in the published PDF, and every published sentence of 60 characters or
more is present in the source. 182 units compared, **0 missing in either direction.**

**Locked 13 September 2026, FINAL v1.0.**

| | |
|---|---|
| Published PDF | `/AP54_Seeing_Alpha.pdf` |
| sha256 | `3029ffa9aee4fc752406522d2b553233b0e079bc5ac99c3946048ad809cc3742` |
| Pages | 38 |
| Source of record | `AP54_Seeing_Alpha_FINAL_v1_0.docx` |
| sha256 | `347e452e6e1051760e63bb2fd08b8db648b161e67aae205d216c2cd8d3cb19bf` |
| Bytes | 75,117 |
| Found in | instruments |

Harvest from this file. If the published PDF is replaced, this note and the digests are re-verified
at that republish.

## How the PDF was made, and what was protected

The Word file is the text of record and it carries a published digest, so **it was never opened.** A
byte-identical copy was made, Word exported the copy, and the original's digest was checked again
afterwards and was unchanged — `347e452e…` before and after. Word did the export, which is the
standing procedure for every paper on this wall: the pagination and the Contents page numbers are
Word's own, not a third-party renderer's.

The PDF was not part of the publication pack and no digest was published for it in advance, so there
is nothing here that a pre-existing digest could contradict. Its digest is recorded above and in
`SHA256SUMS.txt` beside it, from this point on.

## What else is in this folder

`The_Atom_in_the_Hourglass_v2_2026-09-13.docx` — the describing that stands behind the paper. It is
not a proof, has no proof number, and is not listed among them.

`AP54_Lodgement_2026-09-13.docx`, `The_Ripple_Construction_2026-09-13.docx`, `LODGEMENT_2026-09-13.md`
and the other files of 13 September — the working instruments and the before-state lodged before the
lock. **The lodgement records a draft** — v0.16 at 72,463 bytes — and that is a different file from
the one published here. It is not amended after the fact, or it stops being a before-state.

*Frozen files are never edited; corrections supersede, dated, in the open.*