Pith Number

pith:CYCGK5IV

pith:2005:CYCGK5IVUFS5CQ3QNWHNLJGS7Q

not attested not anchored not stored refs pending

ABELL 43 a second pulsating "hybrid PG 1159 star"

G. Vauclair, J.-E. Solheim, R. {\O}stensen

arxiv:astro-ph/0501249 v1 · 2005-01-13 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CYCGK5IVUFS5CQ3QNWHNLJGS7Q}

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	2026-07-04T16:50:37.040376Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1604657515a165d143706d8ed5a4d2fc2bbcbaa1e8b1ae5178245d43755b7dfa

Aliases

arxiv: astro-ph/0501249 · arxiv_version: astro-ph/0501249v1 · doi: 10.48550/arxiv.astro-ph/0501249 · pith_short_12: CYCGK5IVUFS5 · pith_short_16: CYCGK5IVUFS5CQ3Q · pith_short_8: CYCGK5IV

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/CYCGK5IVUFS5CQ3QNWHNLJGS7Q \
  | 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: 1604657515a165d143706d8ed5a4d2fc2bbcbaa1e8b1ae5178245d43755b7dfa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0503fd83f6d70c3d22c8cefd50bb39e05cb58018e2d9b332123e2505799dbc45",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-01-13T13:12:44Z",
    "title_canon_sha256": "aa36a1b4f2700d0138f752ad74d7d34ef26945a38a87319214fe2eb92999aeb1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0501249",
    "kind": "arxiv",
    "version": 1
  }
}