Pith Number

pith:WKNFFLRF

pith:2011:WKNFFLRFEHEDK63TJG2YSKIU6F

not attested not anchored not stored refs pending

Newly Discovered Wolf-Rayet and Weak Emission-Line Central Stars of Planetary Nebulae

Agnes Acker, Anna V. Kovacevic, Brent Miszalski, David J. Frew, Kyle DePew, Orsola De Marco, Quentin A. Parker, Rob G. Sharp

arxiv:1101.2468 v1 · 2011-01-13 · 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{WKNFFLRFEHEDK63TJG2YSKIU6F}

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	2026-05-18T02:03:40.664768Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b29a52ae2521c8357b7349b5892914f14f7e73da2b0933800fe46b5a61c8a759

Aliases

arxiv: 1101.2468 · arxiv_version: 1101.2468v1 · doi: 10.48550/arxiv.1101.2468 · pith_short_12: WKNFFLRFEHED · pith_short_16: WKNFFLRFEHEDK63T · pith_short_8: WKNFFLRF

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/WKNFFLRFEHEDK63TJG2YSKIU6F \
  | 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: b29a52ae2521c8357b7349b5892914f14f7e73da2b0933800fe46b5a61c8a759

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dfc8f13002b54f6fe54a238a8a25262993e935dd0693f5641cef578a472d3b68",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-01-13T00:13:49Z",
    "title_canon_sha256": "3144e25ac5d526959dc3d602d024ca4ca1b3c53a7af02fa7fedd1d0ec584cfbb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.2468",
    "kind": "arxiv",
    "version": 1
  }
}