Pith Number

pith:YWF4BBP7

pith:2003:YWF4BBP7RELWPY5ZILVEGDB2J7

not attested not anchored not stored refs pending

Ionization structure in the winds of B[e] supergiants: I. Ionization equilibrium calculations in a H plus He wind

H.J.G.L.M. Lamers, M. Kraus

arxiv:astro-ph/0304216 v1 · 2003-04-11 · 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{YWF4BBP7RELWPY5ZILVEGDB2J7}

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	2026-07-04T16:36:50.641052Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c58bc085ff891767e3b942ea430c3a4fd2d440a5347e9f45ccb5bde2e8edb95d

Aliases

arxiv: astro-ph/0304216 · arxiv_version: astro-ph/0304216v1 · doi: 10.48550/arxiv.astro-ph/0304216 · pith_short_12: YWF4BBP7RELW · pith_short_16: YWF4BBP7RELWPY5Z · pith_short_8: YWF4BBP7

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/YWF4BBP7RELWPY5ZILVEGDB2J7 \
  | 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: c58bc085ff891767e3b942ea430c3a4fd2d440a5347e9f45ccb5bde2e8edb95d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18b9b11b2cac6e85a9e00db604262cd0a2bd0fb78801ab5de5931e36b728ec9c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-04-11T12:46:58Z",
    "title_canon_sha256": "552b24ae814dae529ff25ffd71667bd5f6c40f90500854a0895f9de34c5e5536"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0304216",
    "kind": "arxiv",
    "version": 1
  }
}