Pith Number

pith:QWIQQSCO

pith:2003:QWIQQSCOJ6Q3N6W33IHDZI7PBO

not attested not anchored not stored refs pending

The Open Cluster Distance Scale: A New Empirical Approach

(2) South African Astronomical Observatory), David Kilkenny (2) ((1) Liverpool John Moores University, Maurizio Salaris (1), Susan M. Percival (1)

arxiv:astro-ph/0301219 v1 · 2003-01-13 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QWIQQSCOJ6Q3N6W33IHDZI7PBO}

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	2026-05-18T04:21:42.192751Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

859108484e4fa1b6fadbda0e3ca3ef0babb0ed0102592095e21296f359655aad

Aliases

arxiv: astro-ph/0301219 · arxiv_version: astro-ph/0301219v1 · doi: 10.48550/arxiv.astro-ph/0301219 · pith_short_12: QWIQQSCOJ6Q3 · pith_short_16: QWIQQSCOJ6Q3N6W3 · pith_short_8: QWIQQSCO

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/QWIQQSCOJ6Q3N6W33IHDZI7PBO \
  | 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: 859108484e4fa1b6fadbda0e3ca3ef0babb0ed0102592095e21296f359655aad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "205491973be27c3fb669d3ee23adb2254114e2fb17f001a644bfb3b4ecec0dba",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-01-13T17:32:41Z",
    "title_canon_sha256": "17a163ef991abea9a6f6dd998f975deaf38587ed63d385b637941ee5b0710680"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0301219",
    "kind": "arxiv",
    "version": 1
  }
}