Pith Number

pith:KGXCBOXL

pith:2003:KGXCBOXLPUKLYNJC6F4XQZL53C

not attested not anchored not stored refs pending

Exploring the Selection of Galaxy Clusters and Groups: An Optical Survey for X-ray Dark Clusters

B. L. Ziegler, David G. Gilbank, F. J. Castander, Richard G. Bower

arxiv:astro-ph/0310809 v1 · 2003-10-28 · 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{KGXCBOXLPUKLYNJC6F4XQZL53C}

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	2026-07-04T16:37:37.897332Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51ae20baeb7d14bc3522f17978657dd8ae7f4bb61f83d4cfcd9403f3fb39ad4d

Aliases

arxiv: astro-ph/0310809 · arxiv_version: astro-ph/0310809v1 · doi: 10.48550/arxiv.astro-ph/0310809 · pith_short_12: KGXCBOXLPUKL · pith_short_16: KGXCBOXLPUKLYNJC · pith_short_8: KGXCBOXL

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/KGXCBOXLPUKLYNJC6F4XQZL53C \
  | 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: 51ae20baeb7d14bc3522f17978657dd8ae7f4bb61f83d4cfcd9403f3fb39ad4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86727a4ec0c7a37b721a2e94fc20a866e367c666f7aaacf9335b4d073e2506eb",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-10-28T21:10:51Z",
    "title_canon_sha256": "b9219c253eb3142de9326b6349e05436ce24e671592b640ee48c9c4070a61fca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0310809",
    "kind": "arxiv",
    "version": 1
  }
}