Pith Number

pith:ZPJUGX74

pith:2011:ZPJUGX74ZOBSKWCISFX44HYZTS

not attested not anchored not stored refs pending

The Wolf-Rayet Content of M33

Kathryn F. Neugent, Philip Massey

arxiv:1103.5549 v2 · 2011-03-29 · 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{ZPJUGX74ZOBSKWCISFX44HYZTS}

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	2026-05-18T02:02:43.702847Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbd3435ffccb83255848916fce1f199c9a59f9d94066c1011eeab8a901f2b208

Aliases

arxiv: 1103.5549 · arxiv_version: 1103.5549v2 · doi: 10.48550/arxiv.1103.5549 · pith_short_12: ZPJUGX74ZOBS · pith_short_16: ZPJUGX74ZOBSKWCI · pith_short_8: ZPJUGX74

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/ZPJUGX74ZOBSKWCISFX44HYZTS \
  | 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: cbd3435ffccb83255848916fce1f199c9a59f9d94066c1011eeab8a901f2b208

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f734eab9eed40234db63545d3f9aba3c432e97709f5797b97a1ed59ba9f3e5d9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-03-29T06:08:17Z",
    "title_canon_sha256": "830543d7eb48a5f1116f20f49d85b312086feafd58f06ad783d70ffac781bbd8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.5549",
    "kind": "arxiv",
    "version": 2
  }
}