Pith Number

pith:RQYDIMXM

pith:2009:RQYDIMXMVL4CJU4YNGFSHP3NM5

not attested not anchored not stored refs pending

A semi-automatic procedure for abundance determination of A- and F-type stars

E. Niemczura, J. Zorec, O.L. Creevey, P. De Cat, P. Lampens, S. Hekker, Y. Fremat

arxiv:0904.0105 v1 · 2009-04-01 · astro-ph.SR · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RQYDIMXMVL4CJU4YNGFSHP3NM5}

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	2026-05-18T02:14:08.413647Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c303432ecaaf824d398698b23bf6d677523ca9620cb29b98806cf42c6520397

Aliases

arxiv: 0904.0105 · arxiv_version: 0904.0105v1 · doi: 10.48550/arxiv.0904.0105 · pith_short_12: RQYDIMXMVL4C · pith_short_16: RQYDIMXMVL4CJU4Y · pith_short_8: RQYDIMXM

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/RQYDIMXMVL4CJU4YNGFSHP3NM5 \
  | 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: 8c303432ecaaf824d398698b23bf6d677523ca9620cb29b98806cf42c6520397

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d838a7a19cccd95835c1633794e3e4359e9e668b80e5a6c0072d620770fe36c",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-04-01T09:16:27Z",
    "title_canon_sha256": "e93647fe9ca39e98478a8b6a685e2c151e23f2bdf250281e59a18f476cc22f30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.0105",
    "kind": "arxiv",
    "version": 1
  }
}