Pith Number

pith:KDZGZAD4

pith:2019:KDZGZAD4E7EUJSQJ4T7CYMTVY5

not attested not anchored not stored refs pending

A Radio Census of the Massive Stellar Cluster Westerlund 1

D. Fenech, H. Andrews, J. S. Clark, L. Hindson, R. K. Prinja

arxiv:1909.04339 v1 · 2019-09-10 · 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{KDZGZAD4E7EUJSQJ4T7CYMTVY5}

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	2026-07-05T00:22:19.409750Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50f26c807c27c944ca09e4fe2c3275c75566fa64a7ecf0621d6cd0567d2512cf

Aliases

arxiv: 1909.04339 · arxiv_version: 1909.04339v1 · doi: 10.48550/arxiv.1909.04339 · pith_short_12: KDZGZAD4E7EU · pith_short_16: KDZGZAD4E7EUJSQJ · pith_short_8: KDZGZAD4

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/KDZGZAD4E7EUJSQJ4T7CYMTVY5 \
  | 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: 50f26c807c27c944ca09e4fe2c3275c75566fa64a7ecf0621d6cd0567d2512cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d00603ab1dcfcfbc80ec184885a519cfbff97ab664bc962394f84d03cec9b80",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-09-10T07:58:52Z",
    "title_canon_sha256": "41f833f65b6513240815e2f6b9c2c5555905a4644c9993a990b8f336a3d8858d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.04339",
    "kind": "arxiv",
    "version": 1
  }
}