Pith Number

pith:QCHFWK4W

pith:2003:QCHFWK4WIG2F257JF26H4G5QOH

not attested not anchored not stored refs pending

The Dark Matter Distribution in the Central Regions of Galaxy Clusters

D.J. Sand, G.P. Smith, R.S. Ellis, T. Treu

arxiv:astro-ph/0310703 v1 · 2003-10-24 · 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{QCHFWK4WIG2F257JF26H4G5QOH}

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	2026-05-18T04:23:00.881627Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

808e5b2b9641b45d77e92ebc7e1bb071c3f2c00d13e1655763507befffa2e16c

Aliases

arxiv: astro-ph/0310703 · arxiv_version: astro-ph/0310703v1 · doi: 10.48550/arxiv.astro-ph/0310703 · pith_short_12: QCHFWK4WIG2F · pith_short_16: QCHFWK4WIG2F257J · pith_short_8: QCHFWK4W

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/QCHFWK4WIG2F257JF26H4G5QOH \
  | 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: 808e5b2b9641b45d77e92ebc7e1bb071c3f2c00d13e1655763507befffa2e16c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "469f74687e3cc8e062675105e25a927d5dbdd201b71dc359c008575564d3518c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-10-24T06:55:14Z",
    "title_canon_sha256": "2369bab3443836bf7048206e762d05bec30a461f1f5e18751561ea16c021560e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0310703",
    "kind": "arxiv",
    "version": 1
  }
}