Pith Number

pith:75ZANUFR

pith:2010:75ZANUFREEJ56HBJT2FAYECMR5

not attested not anchored not stored refs pending

Wolf-Rayet Central Stars of Planetary Nebulae: Their Evolution and Properties

David J. Frew, Kyle DePew, Orsola De Marco, Quentin A. Parker

arxiv:1010.1063 v2 · 2010-10-06 · 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{75ZANUFREEJ56HBJT2FAYECMR5}

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	2026-05-18T04:39:27.516359Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff7206d0b12113df1c299e8a0c104c8f739c631945cf98008f99291d87b0a07c

Aliases

arxiv: 1010.1063 · arxiv_version: 1010.1063v2 · doi: 10.48550/arxiv.1010.1063 · pith_short_12: 75ZANUFREEJ5 · pith_short_16: 75ZANUFREEJ56HBJ · pith_short_8: 75ZANUFR

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/75ZANUFREEJ56HBJT2FAYECMR5 \
  | 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: ff7206d0b12113df1c299e8a0c104c8f739c631945cf98008f99291d87b0a07c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "558e42eae37419189712b4ec716da070a2cdf9249020e84708f140c9da447262",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-10-06T04:59:35Z",
    "title_canon_sha256": "77122cdcf07a45bb07fb4bb4381ec4eae61968f51146e5f534e27ed9c452bfcc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.1063",
    "kind": "arxiv",
    "version": 2
  }
}