Pith Number

pith:ARNFM7V5

pith:2014:ARNFM7V5ZHUBVQ26ORMP5ESCNV

not attested not anchored not stored refs pending

Expansion of hydrogen-poor knots in the born-again planetary nebulae A30 and A78

Helge Todt, Jesus A. Toala, Lida M. Oskinova, Martin A. Guerrero, Ramon A. Marquez-Lugo, Robert A. Gruendl, Sarah J. Arthur, William P. Blair, Wolf-Rainer Hamann, Xuan Fang, You-Hua Chu

arxiv:1410.3872 v1 · 2014-10-14 · 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{ARNFM7V5ZHUBVQ26ORMP5ESCNV}

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	2026-05-18T01:41:48.369154Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

045a567ebdc9e81ac35e7458fe92426d75b9bcca84edecae8c5017f34d1fe3c2

Aliases

arxiv: 1410.3872 · arxiv_version: 1410.3872v1 · doi: 10.48550/arxiv.1410.3872 · pith_short_12: ARNFM7V5ZHUB · pith_short_16: ARNFM7V5ZHUBVQ26 · pith_short_8: ARNFM7V5

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/ARNFM7V5ZHUBVQ26ORMP5ESCNV \
  | 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: 045a567ebdc9e81ac35e7458fe92426d75b9bcca84edecae8c5017f34d1fe3c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4961134afb3f18c9dba88119aba6a8115577b9c9ac4929a65a0c7f17c20137d2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-10-14T21:30:08Z",
    "title_canon_sha256": "419b18378358be52b817674d5ee844bf03d5befce6c5201f2efab7be98f928d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.3872",
    "kind": "arxiv",
    "version": 1
  }
}