Pith Number

pith:NBHUPJXF

pith:2015:NBHUPJXF4FI4MDPIQBHW5OF63G

not attested not anchored not stored refs pending

A Survey for hot Central Stars of Planetary Nebulae I. Methods and First Results

Anthony F.J. Moffat, David Zurek, Graham C. Kanarek, Jacqueline K. Faherty, Michael M. Shara

arxiv:1512.09306 v1 · 2015-12-31 · astro-ph.SR · 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{NBHUPJXF4FI4MDPIQBHW5OF63G}

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	2026-05-18T01:18:38.772741Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

684f47a6e5e151c60de8804f6eb8bed9a91ce4c6239b7d83e052b4870e6626f8

Aliases

arxiv: 1512.09306 · arxiv_version: 1512.09306v1 · doi: 10.48550/arxiv.1512.09306 · pith_short_12: NBHUPJXF4FI4 · pith_short_16: NBHUPJXF4FI4MDPI · pith_short_8: NBHUPJXF

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/NBHUPJXF4FI4MDPIQBHW5OF63G \
  | 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: 684f47a6e5e151c60de8804f6eb8bed9a91ce4c6239b7d83e052b4870e6626f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dccc162218ccc3ef4b038de1595fb5f9083341076dfa92e6fc897b8ede4aed87",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-12-31T15:07:52Z",
    "title_canon_sha256": "3780c0d39a44a254c880fea538ccc42d8c1a5b02e299bbe78e55c4d057056c9c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.09306",
    "kind": "arxiv",
    "version": 1
  }
}