Pith Number

pith:2INIVCE5

pith:1994:2INIVCE54AHZB5FTS3SNJ6B6R4

not attested not anchored not stored refs pending

A General Class of Self-similar Self-gravitating Fluids

Ue-Li Pen

arxiv:astro-ph/9402039 v1 · 1994-02-16 · 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{2INIVCE54AHZB5FTS3SNJ6B6R4}

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

Mass Determination of Supermassive Black Holes Governing Evolution of Radio Emitters

Receipt and verification

First computed	2026-07-04T15:56:03.565042Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d21a8a889de00f90f4b396e4d4f83e8f3c223f893e4845894c2ab61f570c251e

Aliases

arxiv: astro-ph/9402039 · arxiv_version: astro-ph/9402039v1 · doi: 10.48550/arxiv.astro-ph/9402039 · pith_short_12: 2INIVCE54AHZ · pith_short_16: 2INIVCE54AHZB5FT · pith_short_8: 2INIVCE5

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/2INIVCE54AHZB5FTS3SNJ6B6R4 \
  | 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: d21a8a889de00f90f4b396e4d4f83e8f3c223f893e4845894c2ab61f570c251e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a21d84a9f8a8e450d39b35eebe4cd5292b39e27098427d2c1d2f91e65b92938c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1994-02-16T03:02:47Z",
    "title_canon_sha256": "8481e5cdca84101df63b6eee3de212ee6f7088b4637f4382558ea4061bba7fd1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9402039",
    "kind": "arxiv",
    "version": 1
  }
}