Pith Number

pith:5A3MLUXE

pith:2004:5A3MLUXEJMHC2DGSA5GWICYD5U

not attested not anchored not stored refs pending

The Far-Ultraviolet Spectra of TW Hya. II. Models of H2 Fluorescence in a Disk

Brian E. Wood, Chris M. Johns-Krull, Gregory J. Herczeg, Jeff A. Valenti, Jeffrey L. Linsky

arxiv:astro-ph/0402238 v1 · 2004-02-10 · 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{5A3MLUXEJMHC2DGSA5GWICYD5U}

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	2026-07-04T16:43:00.622120Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e836c5d2e44b0e2d0cd2074d640b03ed00cb028375c76888fa5225effdc83a8c

Aliases

arxiv: astro-ph/0402238 · arxiv_version: astro-ph/0402238v1 · doi: 10.48550/arxiv.astro-ph/0402238 · pith_short_12: 5A3MLUXEJMHC · pith_short_16: 5A3MLUXEJMHC2DGS · pith_short_8: 5A3MLUXE

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/5A3MLUXEJMHC2DGSA5GWICYD5U \
  | 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: e836c5d2e44b0e2d0cd2074d640b03ed00cb028375c76888fa5225effdc83a8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6dc1412baa2e43e6f4b6f296546c3a474d6d6f629aac0dab90510057e19f820f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-02-10T21:08:30Z",
    "title_canon_sha256": "2939f1c9d5fde3dce96f19d580bd4e5e29aa62b7412b491ab79150295d74dc97"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0402238",
    "kind": "arxiv",
    "version": 1
  }
}