Pith Number

pith:U2SRZY3I

pith:2011:U2SRZY3I5FHWYY7EGP4FUJIIFR

not attested not anchored not stored refs pending

Properties of fossil groups in cosmological simulations and galaxy formation models

Gabriella De Lucia, Stefano Borgani, Volker Springel, Weiguang Cui, Xiaohu Yang

arxiv:1102.4269 v2 · 2011-02-21 · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U2SRZY3I5FHWYY7EGP4FUJIIFR}

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	2026-05-18T02:03:07.001117Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6a51ce368e94f6c63e433f85a25082c653d632532f401ae949ec69c1c6a20f0

Aliases

arxiv: 1102.4269 · arxiv_version: 1102.4269v2 · doi: 10.48550/arxiv.1102.4269 · pith_short_12: U2SRZY3I5FHW · pith_short_16: U2SRZY3I5FHWYY7E · pith_short_8: U2SRZY3I

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/U2SRZY3I5FHWYY7EGP4FUJIIFR \
  | 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: a6a51ce368e94f6c63e433f85a25082c653d632532f401ae949ec69c1c6a20f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "284769fe982670323c0eb6143e48bd69b0411c4e9558c825a59117c2e42ed0de",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-02-21T16:16:10Z",
    "title_canon_sha256": "773fffa6e867c4225829c6c4e72590b930bc819593904b9280c1c7a0e850bace"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.4269",
    "kind": "arxiv",
    "version": 2
  }
}