Pith Number

pith:WREAUHSJ

pith:2012:WREAUHSJYNBEPZ3VTYDDK23BQK

not attested not anchored not stored refs pending

Massive Stars: Key to Solving the Cosmic Puzzle

Aida Wofford (STScI), Artemio Herrero (IAC), Claus Leitherer (STScI), David Thilker (JHU), Jes\'us Ma\'iz Apell\'aniz (IAA), John D. Hillier (U. of Pittsburgh), Luciana Bianchi (JHU), Mar\'ia Pe\~na-Guerrero (STScI), Miriam Garc\'ia (IAC), Myron Smith (CSC), Nolan R. Walborn (STScI)

arxiv:1209.3199 v1 · 2012-09-14 · 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{WREAUHSJYNBEPZ3VTYDDK23BQK}

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	2026-05-18T03:45:32.533468Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4480a1e49c34247e7759e06356b61829f6ad695bd5e14518e758fce5bb658a0

Aliases

arxiv: 1209.3199 · arxiv_version: 1209.3199v1 · doi: 10.48550/arxiv.1209.3199 · pith_short_12: WREAUHSJYNBE · pith_short_16: WREAUHSJYNBEPZ3V · pith_short_8: WREAUHSJ

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/WREAUHSJYNBEPZ3VTYDDK23BQK \
  | 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: b4480a1e49c34247e7759e06356b61829f6ad695bd5e14518e758fce5bb658a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "403ef76dde3d171145a5cc7c0496fb13c8144ee8e4573a7ab5e3ddcd25f7ff59",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-09-14T14:03:07Z",
    "title_canon_sha256": "78236535c2bc626ce0191db9efa1b82332b534ac1db3d80ca1cc19ba43e539f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.3199",
    "kind": "arxiv",
    "version": 1
  }
}