Pith Number

pith:E4SWWZLK

pith:2004:E4SWWZLKGAZDIXRB7VT3AVSDMI

not attested not anchored not stored refs pending

The Nebular Environment and Enigmatic Hard X-ray Emission of the Hot DO White Dwarf KPD 0005+5106

(2) GSFC/NASA, (3) Institut fur Astronomie und Astrophysik, Klaus Werner (3) ((1) University of Illinois at Urbana-Champaign, Robert A. Gruendl (1), Rosa M. Williams (1), Theodore R. Gull (2), Universitat Tubingen), You-Hua Chu (1)

arxiv:astro-ph/0408363 v1 · 2004-08-19 · astro-ph

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E4SWWZLKGAZDIXRB7VT3AVSDMI}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T04:38:15.893255Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27256b656a3032345e21fd67b0564362151e08388a782930e471ff691b7bb6e0

Aliases

arxiv: astro-ph/0408363 · arxiv_version: astro-ph/0408363v1 · doi: 10.48550/arxiv.astro-ph/0408363 · pith_short_12: E4SWWZLKGAZD · pith_short_16: E4SWWZLKGAZDIXRB · pith_short_8: E4SWWZLK

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/E4SWWZLKGAZDIXRB7VT3AVSDMI \
  | 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: 27256b656a3032345e21fd67b0564362151e08388a782930e471ff691b7bb6e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a69afd38ce892ee08d7b0c29bc8bc92dbea10590174a277705ceedbedab62f44",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-08-19T20:16:10Z",
    "title_canon_sha256": "8753043a43d1350fd55a70844d74215a3b3e67f656884fbb039ab3f6086e869c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0408363",
    "kind": "arxiv",
    "version": 1
  }
}