Pith Number

pith:XNUBCSUS

pith:2002:XNUBCSUS5KFOHGMOCB6KRWFP2X

not attested not anchored not stored refs pending

An X-ray investigation of the NGC346 field in the SMC (1) : the LBV HD5980 and the NGC346 cluster

A.F.J. Moffat, G. Koenigsberger, I.R. Stevens, J.M. Hartwell, M.F. Corcoran, V.S. Niemela, Y.-H. Chu, Y. Naze

arxiv:astro-ph/0208289 v1 · 2002-08-15 · 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{XNUBCSUS5KFOHGMOCB6KRWFP2X}

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	2026-07-04T16:30:38.818440Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb68114a92ea8ae3998e107ca8d8afd5f55dc9e0df5a85fcf818e20f3d2ff172

Aliases

arxiv: astro-ph/0208289 · arxiv_version: astro-ph/0208289v1 · doi: 10.48550/arxiv.astro-ph/0208289 · pith_short_12: XNUBCSUS5KFO · pith_short_16: XNUBCSUS5KFOHGMO · pith_short_8: XNUBCSUS

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/XNUBCSUS5KFOHGMOCB6KRWFP2X \
  | 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: bb68114a92ea8ae3998e107ca8d8afd5f55dc9e0df5a85fcf818e20f3d2ff172

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60c237325f0c11dd23a477d2a7b4b5579fbb4de1b05b7232fb06083e86d4c9d1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-08-15T06:42:57Z",
    "title_canon_sha256": "19da7eafbb6ab6e04cda9d223e28dc09d22469bca1b36e162ace386bedd27b4e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0208289",
    "kind": "arxiv",
    "version": 1
  }
}