Pith Number

pith:ZMR5FFCP

pith:2010:ZMR5FFCPZUU5IEC7F6KLL4AUXG

not attested not anchored not stored refs pending

Massive star formation in Wolf-Rayet galaxies. III: Analysis of the O and WR populations

Angel R. Lopez-Sanchez, Cesar Esteban

arxiv:1004.0051 v2 · 2010-04-01 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZMR5FFCPZUU5IEC7F6KLL4AUXG}

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	2026-05-18T02:08:15.185009Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb23d2944fcd29d4105f2f94b5f014b9815cff69eb3c2209f614829786faaee3

Aliases

arxiv: 1004.0051 · arxiv_version: 1004.0051v2 · doi: 10.48550/arxiv.1004.0051 · pith_short_12: ZMR5FFCPZUU5 · pith_short_16: ZMR5FFCPZUU5IEC7 · pith_short_8: ZMR5FFCP

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/ZMR5FFCPZUU5IEC7F6KLL4AUXG \
  | 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: cb23d2944fcd29d4105f2f94b5f014b9815cff69eb3c2209f614829786faaee3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b50aed7392d80b98d1e0a450029a91313ebd5410dd132cc0567b9a0a2a9c8e9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-04-01T04:20:19Z",
    "title_canon_sha256": "7f82f226d121852f3260fd833339c6297f78281711b901e989d9e2143350aa1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.0051",
    "kind": "arxiv",
    "version": 2
  }
}