Pith Number

pith:MY5IF2ZT

pith:2018:MY5IF2ZTBDUUXX2LNMXPSWJCGE

not attested not anchored not stored refs pending

The inside-out planetary nebula around a born-again star

(2) Laboratory for Space Research, (3) Instituto de Astrofisica de La Plata, 4), (4) Facultad de Ciencias Astronomicas y Geofisicas, (5) Instituto de Astronomia y Meteorologia (IAM), (6) Institute of Physics, (7) Instituto de Astronomia, (8) Tecnologico Nacional de Mexico/I.T. Ensenada, Alexandre Alarie (7), Astronomy, Carolina Kehrig (1), Christophe Morisset (7), CUCEI, Departamento de Ciencias Basicas), Department of Physics, Dept. de Fisica, Faculty of Science, Gerardo Ramos-Larios (5), Helge Todt (6), IAA-CSIC, Laurence Sabin (7), Luis F. Miranda (1), Marcelo M. Miller Bertolami (3, Martin A. Guerrero (1), Saul A. Zavala (8) ((1) Instituto de Astrofisica de Andalucia, The University of Hong Kong, Universidad Nacional Autonoma de Mexico, University of Potsdam, UNLP, UNLP-CONICET, Xuan Fang (2)

arxiv:1808.03462 v1 · 2018-08-10 · 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{MY5IF2ZTBDUUXX2LNMXPSWJCGE}

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	2026-05-18T00:08:24.962495Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

663a82eb3308e94bdf4b6b2ef959223112af1ae561e20f6b62f0420463ef2b8a

Aliases

arxiv: 1808.03462 · arxiv_version: 1808.03462v1 · doi: 10.48550/arxiv.1808.03462 · pith_short_12: MY5IF2ZTBDUU · pith_short_16: MY5IF2ZTBDUUXX2L · pith_short_8: MY5IF2ZT

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/MY5IF2ZTBDUUXX2LNMXPSWJCGE \
  | 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: 663a82eb3308e94bdf4b6b2ef959223112af1ae561e20f6b62f0420463ef2b8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83ce89f80b94109606f89ac2193e1cdcc6e3acfec939385e222b1fac816f78c8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-08-10T09:09:30Z",
    "title_canon_sha256": "9caa5e61a8de797dd65cbb7f34492567a8fccb92b68247ce35d6646552aada34"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.03462",
    "kind": "arxiv",
    "version": 1
  }
}