Pith Number

pith:ZAP4SJT6

pith:2009:ZAP4SJT6KBVUBU3J6ACDU2NYIR

not attested not anchored not stored refs pending

New extended atomic data in cool star model atmospheres - Using Kurucz's new iron data in MAFAGS-OS models

F. Grupp, K. Tan, R. L. Kurucz

arxiv:0906.5449 v1 · 2009-06-30 · 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{ZAP4SJT6KBVUBU3J6ACDU2NYIR}

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	2026-05-18T02:13:11.833361Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c81fc9267e506b40d369f0043a69b84473c8cbf7f177e17842840c5c5f548b2a

Aliases

arxiv: 0906.5449 · arxiv_version: 0906.5449v1 · doi: 10.48550/arxiv.0906.5449 · pith_short_12: ZAP4SJT6KBVU · pith_short_16: ZAP4SJT6KBVUBU3J · pith_short_8: ZAP4SJT6

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/ZAP4SJT6KBVUBU3J6ACDU2NYIR \
  | 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: c81fc9267e506b40d369f0043a69b84473c8cbf7f177e17842840c5c5f548b2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45fd7415ce49d47e0868d9794c5edaf7517a2d693b95dd0290fa74a42166e175",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-06-30T09:25:47Z",
    "title_canon_sha256": "286ae7cdd02489a4b89e6aa47092ee0ba7ddc950bee1d22ce24706738e3bda50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.5449",
    "kind": "arxiv",
    "version": 1
  }
}