Pith Number

pith:AUJCWUB7

pith:2013:AUJCWUB7CCL4TRXSZ6H6UXGI54

not attested not anchored not stored refs pending

On the nature of WO stars: a quantitative analysis of the WO3 star DR1 in IC 1613

A. de Koter, F. Tramper, G. Gr\"afener, H. Sana, J.S. Vink, L.E. Ellerbroek, L. Kaper, M. Garcia, N. Langer, O.E. Hartoog, S.E. de Mink

arxiv:1310.2849 v1 · 2013-10-10 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AUJCWUB7CCL4TRXSZ6H6UXGI54}

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	2026-05-18T01:47:06.911920Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

05122b503f1097c9c6f2cf8fea5cc8ef088d7b6f4b65aff57ef6a68ffee55481

Aliases

arxiv: 1310.2849 · arxiv_version: 1310.2849v1 · doi: 10.48550/arxiv.1310.2849 · pith_short_12: AUJCWUB7CCL4 · pith_short_16: AUJCWUB7CCL4TRXS · pith_short_8: AUJCWUB7

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/AUJCWUB7CCL4TRXSZ6H6UXGI54 \
  | 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: 05122b503f1097c9c6f2cf8fea5cc8ef088d7b6f4b65aff57ef6a68ffee55481

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae947b0ef1a05fe2dfe67677011cb09b3c7979824b5302c39ed155a459db8bf6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-10-10T15:08:49Z",
    "title_canon_sha256": "30e20c3bef9b73f061a88e5f6e1118e8d1f3b473d12fc9623b771a2ff24074e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.2849",
    "kind": "arxiv",
    "version": 1
  }
}