Pith Number

pith:OG5E26D7

pith:1993:OG5E26D7O4VSI7QISJLEOF3WVJ

not attested not anchored not stored refs pending

Is Dark Matter in Spiral Galaxies Cold Gas? II. Fractal Models and Star Non-Formation

D. Pfenniger & F. Combes

arxiv:astro-ph/9311044 v1 · 1993-11-18 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OG5E26D7O4VSI7QISJLEOF3WVJ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

1 paper in Pith

A correlation predicting galaxies without dark matter

Receipt and verification

First computed	2026-05-18T04:21:41.281435Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71ba4d787f772b247e089256471776aa543b478a72236d32a82afb6b3a2a8531

Aliases

arxiv: astro-ph/9311044 · arxiv_version: astro-ph/9311044v1 · doi: 10.48550/arxiv.astro-ph/9311044 · pith_short_12: OG5E26D7O4VS · pith_short_16: OG5E26D7O4VSI7QI · pith_short_8: OG5E26D7

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/OG5E26D7O4VSI7QISJLEOF3WVJ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 71ba4d787f772b247e089256471776aa543b478a72236d32a82afb6b3a2a8531

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a38fff4527e315379f6f206a11d08e61119e43aa9709b353e42b5c0d3d677ce9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1993-11-18T10:49:00Z",
    "title_canon_sha256": "33fb05a452b80ecbf5976bdaf2dc01baf2fa6c84193dbbcb04309c31f5832d39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9311044",
    "kind": "arxiv",
    "version": 1
  }
}