Pith Number

pith:7YYSLUGX

pith:2025:7YYSLUGXRCLDGAKOE2QCE2YO25

not attested not anchored not stored refs pending

Strong nebular HeII emission induced by He$^+$ ionizing photons escaping through the clumpy winds of massive stars

Andrea Pallottini, Andreas A. C. Sander, Arpita Roy, \'Asa Sk\'ulad\'ottir, Georges Meynet, Jorick S. Vink, Mark R. Krumholz, Ralph S. Sutherland, Sourabh Paul, Stefania Salvadori, Sylvia Ekstr\"om

arxiv:2501.08376 v3 · 2025-01-14 · astro-ph.GA · 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{7YYSLUGXRCLDGAKOE2QCE2YO25}

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	2026-07-05T10:42:42.319755Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe3125d0d7889633014e26a0226b0ed7655cc08c15e79efa5e6ad21684cb046c

Aliases

arxiv: 2501.08376 · arxiv_version: 2501.08376v3 · doi: 10.48550/arxiv.2501.08376 · pith_short_12: 7YYSLUGXRCLD · pith_short_16: 7YYSLUGXRCLDGAKO · pith_short_8: 7YYSLUGX

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/7YYSLUGXRCLDGAKOE2QCE2YO25 \
  | 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: fe3125d0d7889633014e26a0226b0ed7655cc08c15e79efa5e6ad21684cb046c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "434b37557cbf959581e74670d3d328f9635b84d91679404c3f46b6909dda80e7",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-01-14T19:00:00Z",
    "title_canon_sha256": "01eeb53f3adcfc7d865738e79065084513038e93d1caea6816c44d1a69703e3f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.08376",
    "kind": "arxiv",
    "version": 3
  }
}