Pith Number

pith:ZZUKLBUX

pith:2004:ZZUKLBUX7WS2G4KFAP6QIPEKKK

not attested not anchored not stored refs pending

Nitrogen abundances in Planet-harbouring stars

(2) Centro de Astronomia e Astrofisica de Universidade de Lisboa, 3), (3) Observatoire de Geneve, 4), (4) Departamento de Astrofisica, (5) INAF, A. Ecuvillon (1), G. Israelian (1), Italy), M. Mayor (3), N. C. Santos (2, Osservatorio Astrofisico di Arcetri, Portugal, R. J. Garc\'ia L\'opez (1, Spain, S. Randich (5) ((1) Instituto de Astrofisica de Canarias, Switzerland, Universidad de La Laguna

arxiv:astro-ph/0401396 v1 · 2004-01-20 · 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{ZZUKLBUX7WS2G4KFAP6QIPEKKK}

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	2026-05-18T01:09:03.365904Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce68a58697fda5a3714503fd043c8a5293d56f017fe50dc520adcf68b85178bf

Aliases

arxiv: astro-ph/0401396 · arxiv_version: astro-ph/0401396v1 · doi: 10.48550/arxiv.astro-ph/0401396 · pith_short_12: ZZUKLBUX7WS2 · pith_short_16: ZZUKLBUX7WS2G4KF · pith_short_8: ZZUKLBUX

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/ZZUKLBUX7WS2G4KFAP6QIPEKKK \
  | 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: ce68a58697fda5a3714503fd043c8a5293d56f017fe50dc520adcf68b85178bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42dae240160c6cc7d7bde27024f27251f7f8da504d5775eae2a9aa066cb86cdc",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-01-20T17:32:24Z",
    "title_canon_sha256": "4ddb81a19b54a8136104e42df5f9b449bddd996c36062f2b74171f86b0ca2e12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0401396",
    "kind": "arxiv",
    "version": 1
  }
}