Pith Number

pith:7KAEN5B2

pith:2025:7KAEN5B2ZUC5ILJANTECWNF6XL

not attested not anchored not stored refs pending

The impact of wind mass loss on nucleosynthesis and yields of very massive stars at low metallicity

Alison M. Laird, Erin R. Higgins, Gautham Sabhahit, Jorick S. Vink, Raphael Hirschi

arxiv:2504.18621 v1 · 2025-04-25 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7KAEN5B2ZUC5ILJANTECWNF6XL}

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	2026-07-05T11:29:58.327838Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa8046f43acd05d42d206cc82b34bebaebe6e4f6976f3734d3386f02ddba152f

Aliases

arxiv: 2504.18621 · arxiv_version: 2504.18621v1 · doi: 10.48550/arxiv.2504.18621 · pith_short_12: 7KAEN5B2ZUC5 · pith_short_16: 7KAEN5B2ZUC5ILJA · pith_short_8: 7KAEN5B2

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/7KAEN5B2ZUC5ILJANTECWNF6XL \
  | 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: fa8046f43acd05d42d206cc82b34bebaebe6e4f6976f3734d3386f02ddba152f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15fa7dbfd999478b651400c30615919b3ab80ff963d3e016b4670cce228727fc",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2025-04-25T18:00:02Z",
    "title_canon_sha256": "48e1375fe3d33e0f739833f456b3f3eb25e3b35c204ebbba0f8701a3b04e895a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.18621",
    "kind": "arxiv",
    "version": 1
  }
}