Pith Number

pith:Z4OC2LPM

pith:2001:Z4OC2LPMJN7WBVF5QVSV2ZBO4C

not attested not anchored not stored refs pending

The abundance pattern of the lambda Bootis stars

U. Heiter

arxiv:astro-ph/0112196 v1 · 2001-12-07 · 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{Z4OC2LPMJN7WBVF5QVSV2ZBO4C}

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	2026-07-04T16:24:44.022207Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf1c2d2dec4b7f60d4bd85655d642ee0ae0fd27c2d03e34974ac1ba55c1195ce

Aliases

arxiv: astro-ph/0112196 · arxiv_version: astro-ph/0112196v1 · doi: 10.48550/arxiv.astro-ph/0112196 · pith_short_12: Z4OC2LPMJN7W · pith_short_16: Z4OC2LPMJN7WBVF5 · pith_short_8: Z4OC2LPM

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/Z4OC2LPMJN7WBVF5QVSV2ZBO4C \
  | 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: cf1c2d2dec4b7f60d4bd85655d642ee0ae0fd27c2d03e34974ac1ba55c1195ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07c559098de90d8cd89c33e6490dd6067f7bc17376b179d95237af2b1612428e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-12-07T22:46:46Z",
    "title_canon_sha256": "91ee27fd0ce5df1de3b092a8aab1d1a6f5426687134f00967491f39303c0970e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0112196",
    "kind": "arxiv",
    "version": 1
  }
}