Pith Number

pith:4G2JUFTW

pith:2003:4G2JUFTWEVJD7O5SCSRD3RL3G5

not attested not anchored not stored refs pending

FUSE observations of H2 around the Herbig AeBe stars HD 100546 and HD 163296

A. Lecavelier des Etangs, A. Roberge, A. Vidal-Madjar, F. Le Petit, G. Hebrard, J.-C. Bouret, J.-M. Desert, M. Deleuil, P.D. Feldman

arxiv:astro-ph/0306449 v1 · 2003-06-23 · 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{4G2JUFTWEVJD7O5SCSRD3RL3G5}

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	2026-07-04T16:52:01.878093Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1b49a167625523fbbb214a23dc57b374b16bc92b98ef952878951d670fdcc98

Aliases

arxiv: astro-ph/0306449 · arxiv_version: astro-ph/0306449v1 · doi: 10.48550/arxiv.astro-ph/0306449 · pith_short_12: 4G2JUFTWEVJD · pith_short_16: 4G2JUFTWEVJD7O5S · pith_short_8: 4G2JUFTW

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/4G2JUFTWEVJD7O5SCSRD3RL3G5 \
  | 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: e1b49a167625523fbbb214a23dc57b374b16bc92b98ef952878951d670fdcc98

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf300eb075a4ccd5f2ca59d838dd9c80d1a754e4a9792e41ddd7343c1cc4599c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-06-23T09:13:30Z",
    "title_canon_sha256": "f872759dad0c79bfe7380b6e9cc5ab4df4e52c3e8155749d20706aa866e59f22"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0306449",
    "kind": "arxiv",
    "version": 1
  }
}