git:20261006.d465449 to git:20261030.fdb7bef
3 added, 4 removed. Audit A to A.
# `infrastructure/publishing/arxiv/`
Local arXiv submission tarball preparation (no network API).
## Public API
```python
from infrastructure.publishing.arxiv import prepare_arxiv_submission
```
### `prepare_arxiv_submission`
```python
- prepare_arxiv_submission(output_dir: Path, metadata: PublicationMetadata) -> Path
+ prepare_arxiv_submission(output_dir: Path) -> Path
```
Prefers the renderer-owned `output/pdf/_combined_manuscript.tex`, stages it at
the archive root with its stem-matched `.bbl`, rendered bibliography files, and
`output/figures/`, and adapts renderer-relative figure references to that flat
- layout. If the canonical file is absent, exactly one legacy
- `output/pdf/*.tex` is accepted; otherwise a conventional sibling `manuscript/`
- TeX source tree is preserved by relative path.
+ layout. Rendered TeX must use that exact canonical root. Projects authored directly
+ in TeX can instead provide a sibling `manuscript/` source tree, preserved by relative path.
The helper fails closed on a missing/empty or ambiguous TeX root, symlinks,
special files, and non-identical path collisions. It removes all older
date-named packages before building and never leaves a partial package after a
failure. `SOURCE_DATE_EPOCH` controls the UTC filename date and normalized
tar/gzip metadata; invalid or negative explicit values fail. Identical inputs
and epoch must produce byte-identical archives.
Public tracked packages are post-render artifacts: package after the final
Stage 3 render, refresh the current artifact manifest, then rerun Stage 4 so its
validation report and rendered-provenance receipt attest the updated output
tree. Do not run `refresh_rendered_provenance.py` afterward because that helper
rerenders first and cleans the package. The exact command sequence is in
[`README.md`](README.md).
## Tests
```bash
uv run pytest tests/infra_tests/publishing/test_platforms.py::TestPrepareArxivSubmission -v
```
## See also
- [`README.md`](README.md)
- [`../registry.py`](../registry.py) — canonical platform discovery