Pith Number

pith:CLXNGSE5

pith:2011:CLXNGSE5TXBYJEX5BZJLBII73B

not attested not anchored not stored refs pending

An aluminum/calcium-rich, iron-poor, white dwarf star: evidence for an extrasolar planetary lithosphere?

B. Klein, B. Zuckerman, Carl Melis, D. Koester, M. Jura, P. Dufour

arxiv:1107.2167 v1 · 2011-07-12 · 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{CLXNGSE5TXBYJEX5BZJLBII73B}

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	2026-05-18T02:01:19.999459Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12eed3489d9dc38492fd0e52b0a11fd876c16f4d0203a60070fd9f45336e1f52

Aliases

arxiv: 1107.2167 · arxiv_version: 1107.2167v1 · doi: 10.48550/arxiv.1107.2167 · pith_short_12: CLXNGSE5TXBY · pith_short_16: CLXNGSE5TXBYJEX5 · pith_short_8: CLXNGSE5

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/CLXNGSE5TXBYJEX5BZJLBII73B \
  | 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: 12eed3489d9dc38492fd0e52b0a11fd876c16f4d0203a60070fd9f45336e1f52

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e7a9e64e232b45d1375e608250bf16a772120a410124cccbc31a4cc2442a9ca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-07-12T00:08:16Z",
    "title_canon_sha256": "d036db4fe2bab0b54562a7055db6827d7b78216d03f93c04504f9c2fe4cfa63f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.2167",
    "kind": "arxiv",
    "version": 1
  }
}