Pith Number

pith:YFPIDXRV

pith:2002:YFPIDXRVLZ6DAMDX7EQOWJ4QPO

not attested not anchored not stored refs pending

Non-LTE Effects of Na I in the Atmosphere of HD209458b

Andreas Schweitzer, E. Baron, France Allard, Peter H. Hauschildt, Phillip C. Stancil, Travis S. Barman

arxiv:astro-ph/0203139 v1 · 2002-03-08 · 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{YFPIDXRVLZ6DAMDX7EQOWJ4QPO}

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	2026-07-04T16:29:31.353553Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c15e81de355e7c303077f920eb27907baf85f17768e1ada96f04075aed2d5827

Aliases

arxiv: astro-ph/0203139 · arxiv_version: astro-ph/0203139v1 · doi: 10.48550/arxiv.astro-ph/0203139 · pith_short_12: YFPIDXRVLZ6D · pith_short_16: YFPIDXRVLZ6DAMDX · pith_short_8: YFPIDXRV

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/YFPIDXRVLZ6DAMDX7EQOWJ4QPO \
  | 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: c15e81de355e7c303077f920eb27907baf85f17768e1ada96f04075aed2d5827

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98858e683bea57945b0d00f0a41d8bc54a9b59d0e571d7010e746354ecd16d25",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-03-08T22:20:36Z",
    "title_canon_sha256": "262af18c42df0590611d5f920637443f601b699c92d39a822393ac7ab2bd83be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0203139",
    "kind": "arxiv",
    "version": 1
  }
}