Pith Number

pith:S575NT5X

pith:2025:S575NT5XBAVN52UDBCFSKZIAMC

not attested not anchored not stored refs pending

A new mass estimate method with hydrodynamical atmospheres for very massive WNh stars

Andreas A. C. Sander, Gautham N. Sabhahit, Jorick S. Vink, Matheus Bernini-Peron, Paul A. Crowther, Roel R. Lefever, Tomer Shenar

arxiv:2502.14957 v2 · 2025-02-20 · astro-ph.SR · astro-ph.GA · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S575NT5XBAVN52UDBCFSKZIAMC}

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	2026-07-05T10:35:46.557066Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

977fd6cfb7082adeea83088b256500609f85eb3e87bdf732b62dbd1910be24cc

Aliases

arxiv: 2502.14957 · arxiv_version: 2502.14957v2 · doi: 10.48550/arxiv.2502.14957 · pith_short_12: S575NT5XBAVN · pith_short_16: S575NT5XBAVN52UD · pith_short_8: S575NT5X

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/S575NT5XBAVN52UDBCFSKZIAMC \
  | 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: 977fd6cfb7082adeea83088b256500609f85eb3e87bdf732b62dbd1910be24cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff9394e22439d9c3a8b3e53e12bc6c65fada8701710f422e8f030a55f7d1737b",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2025-02-20T19:00:01Z",
    "title_canon_sha256": "f26b95adccbee85acd97b14d599f77e14bb01dabd31f083556ff2a241832e0ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.14957",
    "kind": "arxiv",
    "version": 2
  }
}