Pith Number

pith:WWA7UNEH

pith:2011:WWA7UNEHRQNYLIZFZQNYKTOP5F

not attested not anchored not stored refs pending

Magnetic stars from a FEROS cool Ap star survey

C. Nitschelm, D. W. Kurtz, V. G. Elkin

arxiv:1111.6448 v1 · 2011-11-28 · 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{WWA7UNEHRQNYLIZFZQNYKTOP5F}

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	2026-05-18T01:59:23.016983Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b581fa34878c1b85a325cc1b854dcfe9749160710926936dc4d25c4e73a58c8d

Aliases

arxiv: 1111.6448 · arxiv_version: 1111.6448v1 · doi: 10.48550/arxiv.1111.6448 · pith_short_12: WWA7UNEHRQNY · pith_short_16: WWA7UNEHRQNYLIZF · pith_short_8: WWA7UNEH

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/WWA7UNEHRQNYLIZFZQNYKTOP5F \
  | 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: b581fa34878c1b85a325cc1b854dcfe9749160710926936dc4d25c4e73a58c8d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "efa0fb2a1517049c45e9fcc4ddbfe58d20d3167ae6146e315186bdde3db97a1d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-11-28T14:04:19Z",
    "title_canon_sha256": "5bf187f012d8bc18ebf0ce74a7439c33869f16fdce4b4dec13a59c74842ef6b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.6448",
    "kind": "arxiv",
    "version": 1
  }
}