Pith Number

pith:55VG2X3D

pith:2013:55VG2X3DYVJOMHRF6TDYEGCV4V

not attested not anchored not stored refs pending

Outskirts of Galaxy Clusters

Etienne Pointecouteau, Holger Israel, Kaustuv Basu, Lorenzo Lovisari, Mauro Roncarelli, Silvano Molendi, Stefano Ettori, Thomas H. Reiprich

arxiv:1303.3286 v1 · 2013-03-13 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{55VG2X3DYVJOMHRF6TDYEGCV4V}

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	2026-05-18T01:51:07.728252Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef6a6d5f63c552e61e25f4c7821855e553c78594ca8df87a43de7535147f8f10

Aliases

arxiv: 1303.3286 · arxiv_version: 1303.3286v1 · doi: 10.48550/arxiv.1303.3286 · pith_short_12: 55VG2X3DYVJO · pith_short_16: 55VG2X3DYVJOMHRF · pith_short_8: 55VG2X3D

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/55VG2X3DYVJOMHRF6TDYEGCV4V \
  | 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: ef6a6d5f63c552e61e25f4c7821855e553c78594ca8df87a43de7535147f8f10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "acaedf1cfad6e3d5527af4cd5dbf2cabe5efefab857bfbcbb832c026f48606eb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-03-13T20:38:55Z",
    "title_canon_sha256": "ea930427ee9e3fe7279bfbc40d17a24ad28a6921b52cabcb67c028434107f1be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.3286",
    "kind": "arxiv",
    "version": 1
  }
}