Pith Number

pith:XLJ4Y5BA

pith:1997:XLJ4Y5BAYP4O6M6RT3ZOKQQEDT

not attested not anchored not stored refs pending

On the Density Probability Function of Galactic Gas. I. Numerical Simulations and the Significance of the Polytropic Index

(2) I. Astronomia, (3)Obs. de Nice), D. Chappell(1) & T. Passot(3) ((1)Astronomy Dept., E. Vazquez-Semadeni(2), J. Scalo(1), UNAM, U.T. Austin

arxiv:astro-ph/9710075 v1 · 1997-10-08 · 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{XLJ4Y5BAYP4O6M6RT3ZOKQQEDT}

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.

Receipt and verification

First computed	2026-05-18T02:40:35.150223Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bad3cc7420c3f8ef33d19ef2e542041cfb7544c4afb149c16ccac1d0e97aadb9

Aliases

arxiv: astro-ph/9710075 · arxiv_version: astro-ph/9710075v1 · doi: 10.48550/arxiv.astro-ph/9710075 · pith_short_12: XLJ4Y5BAYP4O · pith_short_16: XLJ4Y5BAYP4O6M6R · pith_short_8: XLJ4Y5BA

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/XLJ4Y5BAYP4O6M6RT3ZOKQQEDT \
  | 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: bad3cc7420c3f8ef33d19ef2e542041cfb7544c4afb149c16ccac1d0e97aadb9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a63f749117b7ddb2ae344a34c67d4a92eb22bcf4fd991191f8a3a0f822145f31",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-10-08T00:46:11Z",
    "title_canon_sha256": "eb9c30e09bec528c44201443e7672fe4d3f84d153226ba7672043a3dffb4fc61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9710075",
    "kind": "arxiv",
    "version": 1
  }
}