Pith Number

pith:26KSKBJO

pith:2004:26KSKBJOQMAX3D2L3GDJGD3O3L

not attested not anchored not stored refs pending

Chandra observations of X-ray source overdensities in distant galaxy cluster fields

G.G.C. Palumbo, G. Malaguti, M. Branchesi, M. Cappi, M.Dadina, N. Cappelluti, V. D'Elia

arxiv:astro-ph/0409756 v1 · 2004-09-30 · 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{26KSKBJOQMAX3D2L3GDJGD3O3L}

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	2026-07-04T14:13:47.281215Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d79525052e83017d8f4bd986930f6edad11a7724cf5b0f15097862748264a0b0

Aliases

arxiv: astro-ph/0409756 · arxiv_version: astro-ph/0409756v1 · doi: 10.48550/arxiv.astro-ph/0409756 · pith_short_12: 26KSKBJOQMAX · pith_short_16: 26KSKBJOQMAX3D2L · pith_short_8: 26KSKBJO

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/26KSKBJOQMAX3D2L3GDJGD3O3L \
  | 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: d79525052e83017d8f4bd986930f6edad11a7724cf5b0f15097862748264a0b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0013d13bfb2d4acf2d36b1b431ce6e0a87ab7a4d682c2885f4ad3c236f302e3e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-09-30T12:50:43Z",
    "title_canon_sha256": "7e2dc5eea07e2fb88f4658a668c2d085eeb6ebfd5478911b34e9c0f7482b3956"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0409756",
    "kind": "arxiv",
    "version": 1
  }
}