Pith Number

pith:NP4MFBRC

pith:1998:NP4MFBRCT3TD766VWP2CWUF6QQ

not attested not anchored not stored refs pending

Numerical Solution of the Expanding Stellar Atmosphere Problem

E. Baron (Univ. of Oklahoma), P.H. Hauschildt (UGA)

arxiv:astro-ph/9808182 v1 · 1998-08-18 · 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{NP4MFBRCT3TD766VWP2CWUF6QQ}

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

2 papers in Pith

Integral field spectroscopy with no IFUs: combining wide-field rotational slitless spectroscopy with tomographic reconstruction

Revisiting Ca II Activity Indices in FGK Stars: Systematic Biases in Infrared Triplet Measurements

Receipt and verification

First computed	2026-05-18T04:20:51.556771Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bf8c286229ee63ffbd5b3f42b50be84086db33453192e8417382f2f774c81f6

Aliases

arxiv: astro-ph/9808182 · arxiv_version: astro-ph/9808182v1 · doi: 10.48550/arxiv.astro-ph/9808182 · pith_short_12: NP4MFBRCT3TD · pith_short_16: NP4MFBRCT3TD766V · pith_short_8: NP4MFBRC

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/NP4MFBRCT3TD766VWP2CWUF6QQ \
  | 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: 6bf8c286229ee63ffbd5b3f42b50be84086db33453192e8417382f2f774c81f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1440e061a182df48878534d68d0bc8c37b66ed87896876b3dd66be84659042e2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-08-18T18:18:38Z",
    "title_canon_sha256": "3098cd4e641bbb0fd11a70996b124ff49fedcbfee252e33d59484581d568b9ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9808182",
    "kind": "arxiv",
    "version": 1
  }
}