Pith Number

pith:IUXOY4S4

pith:2009:IUXOY4S4NO3XIMLRUYNEHMRP43

not attested not anchored not stored refs pending

The chemical composition of TS 01, the most oxygen-deficient planetary nebula. AGB nucleosynthesis in a metal-poor binary star

C. Charbonnel, C. Morisset, G. Stasinska, G. Tovmassian, L. Jamet, L. Yungelson, M. G. Richer, M. Pena, R. Napiwotzki, R. Szczerba, S. Simon-Diaz, T. Decressin, T. Rauch

arxiv:0911.4019 v1 · 2009-11-20 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IUXOY4S4NO3XIMLRUYNEHMRP43}

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	2026-05-18T02:10:45.523056Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

452eec725c6bb7743171a61a43b22fe6f09316f77bd95bf74f6a366093d0417b

Aliases

arxiv: 0911.4019 · arxiv_version: 0911.4019v1 · doi: 10.48550/arxiv.0911.4019 · pith_short_12: IUXOY4S4NO3X · pith_short_16: IUXOY4S4NO3XIMLR · pith_short_8: IUXOY4S4

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/IUXOY4S4NO3XIMLRUYNEHMRP43 \
  | 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: 452eec725c6bb7743171a61a43b22fe6f09316f77bd95bf74f6a366093d0417b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ddc5847ce2d3b7773bf0d9d0a6349d5a2c43bafd1224f3d3dbade1b3366a3740",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-11-20T11:34:59Z",
    "title_canon_sha256": "b8868d27669f0e07cc672b1f15e1066ebd4f937f1b3766ceb1951261247dde56"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.4019",
    "kind": "arxiv",
    "version": 1
  }
}