Pith Number

pith:LKRWFQFN

pith:2018:LKRWFQFNF4O2F3NLET42UEO44Y

not attested not anchored not stored refs pending

Very Massive Stars: a metallicity-dependent upper-mass limit, slow winds, and the self-enrichment of Globular Clusters

Jorick S. Vink (Armagh Observatory, Planetarium)

arxiv:1803.08042 v2 · 2018-03-21 · 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{LKRWFQFNF4O2F3NLET42UEO44Y}

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	2026-05-18T00:09:53.741664Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5aa362c0ad2f1da2edab24f9aa11dce61ca527704a069f91575af4c0058de85a

Aliases

arxiv: 1803.08042 · arxiv_version: 1803.08042v2 · doi: 10.48550/arxiv.1803.08042 · pith_short_12: LKRWFQFNF4O2 · pith_short_16: LKRWFQFNF4O2F3NL · pith_short_8: LKRWFQFN

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/LKRWFQFNF4O2F3NLET42UEO44Y \
  | 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: 5aa362c0ad2f1da2edab24f9aa11dce61ca527704a069f91575af4c0058de85a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1dc346b4544bc9986e795f074f89639713187b43ed99b584b54993b0d9d4cb4b",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-03-21T18:00:00Z",
    "title_canon_sha256": "ab1d29659bceadc15d671e40b2404535ab94364f166dfd3af7da24e48121bb5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.08042",
    "kind": "arxiv",
    "version": 2
  }
}