Pith Number

pith:4YUXFYBF

pith:2015:4YUXFYBFKIOOKZPLSAXERA3YDD

not attested not anchored not stored refs pending

Finding Wolf-Rayet Stars in the Milky Way: Inputs to Star Formation and Stellar Evolution

A.P. Marston, J. Mauerhan, P. Morris, S. Van Dyk

arxiv:1509.03049 v1 · 2015-09-10 · 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{4YUXFYBFKIOOKZPLSAXERA3YDD}

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	2026-05-18T01:33:25.621791Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e62972e025521ce565eb902e48837818eed9fbf34979e2cd157855d79d5ac8df

Aliases

arxiv: 1509.03049 · arxiv_version: 1509.03049v1 · doi: 10.48550/arxiv.1509.03049 · pith_short_12: 4YUXFYBFKIOO · pith_short_16: 4YUXFYBFKIOOKZPL · pith_short_8: 4YUXFYBF

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/4YUXFYBFKIOOKZPLSAXERA3YDD \
  | 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: e62972e025521ce565eb902e48837818eed9fbf34979e2cd157855d79d5ac8df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0a3ad34980b09e8c1a67f6410aa995dfbf2c99f352916d7aa098887201a0c94",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-09-10T08:28:29Z",
    "title_canon_sha256": "0aac7abc18324caa6cdcf5b8ec9dc369333ea18f68e61ac1b3d341482aad6b14"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.03049",
    "kind": "arxiv",
    "version": 1
  }
}