Pith Number

pith:GWK6DA7Z

pith:2002:GWK6DA7ZQIHHUYUNV66RVWWTPL

not attested not anchored not stored refs pending

Abell 3560, a galaxy cluster at the edge of a major merging event

E. Zucca, S. Bardelli, S. De Grandi, S. Ettori, S. Molendi, T. Venturi

arxiv:astro-ph/0209399 v1 · 2002-09-19 · 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{GWK6DA7ZQIHHUYUNV66RVWWTPL}

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	2026-05-18T01:07:44.507302Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3595e183f9820e7a628dafbd1adad37ae6735a66d416d601f4c16b6318de899a

Aliases

arxiv: astro-ph/0209399 · arxiv_version: astro-ph/0209399v1 · doi: 10.48550/arxiv.astro-ph/0209399 · pith_short_12: GWK6DA7ZQIHH · pith_short_16: GWK6DA7ZQIHHUYUN · pith_short_8: GWK6DA7Z

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/GWK6DA7ZQIHHUYUNV66RVWWTPL \
  | 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: 3595e183f9820e7a628dafbd1adad37ae6735a66d416d601f4c16b6318de899a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10b4de7bcbb77d275e81b15f854db11a9cced3dc334055cdc3ee142f09ad7678",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-09-19T12:11:36Z",
    "title_canon_sha256": "30b9203dac92a3366d703848fb58daeef4b7f87492b06d46eb1243ace752748c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0209399",
    "kind": "arxiv",
    "version": 1
  }
}