Pith Number

pith:MH67QDJO

pith:2012:MH67QDJOWNC7HB2ZDO5EM7F3XP

not attested not anchored not stored refs pending

Are planetary nebulae derived from multiple evolutionary scenarios?

2, 2), (2) Macquarie University Research Centre in Astronomy, 3) ((1) Department of Physics, (3) Australian Astronomical Observatory), Astronomy, Astrophotonics, Astrophysics, D. J. Frew (1, Macquarie University, Q. A. Parker (1

arxiv:1203.1388 v1 · 2012-03-07 · 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{MH67QDJOWNC7HB2ZDO5EM7F3XP}

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	2026-05-18T01:58:13.893643Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61fdf80d2eb345f387591bba467cbbbbc594c3a42bab48eb73b9576971cad44d

Aliases

arxiv: 1203.1388 · arxiv_version: 1203.1388v1 · doi: 10.48550/arxiv.1203.1388 · pith_short_12: MH67QDJOWNC7 · pith_short_16: MH67QDJOWNC7HB2Z · pith_short_8: MH67QDJO

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/MH67QDJOWNC7HB2ZDO5EM7F3XP \
  | 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: 61fdf80d2eb345f387591bba467cbbbbc594c3a42bab48eb73b9576971cad44d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c288db45063973e03cf577f579d0ba370c4a02ff4dbc73e35374669e14a97d99",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-03-07T06:37:08Z",
    "title_canon_sha256": "37fc7cdee335aac50794644b0263d73c022f420c5aa04a5e42489804cd12f920"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.1388",
    "kind": "arxiv",
    "version": 1
  }
}