Pith Number

pith:64WZ2LE2

pith:2010:64WZ2LE2AJHOZHOLYRVIAYU2WD

not attested not anchored not stored refs pending

Quasar Clustering in Cosmological Hydrodynamic Simulations: Evidence for mergers

Colin DeGraf, Tiziana Di Matteo, Volker Springel

arxiv:1005.1653 v1 · 2010-05-10 · 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{64WZ2LE2AJHOZHOLYRVIAYU2WD}

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	2026-05-18T02:07:34.604754Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f72d9d2c9a024eec9dcbc46a80629ab0c4e972f505bbd0596550128c92f53776

Aliases

arxiv: 1005.1653 · arxiv_version: 1005.1653v1 · doi: 10.48550/arxiv.1005.1653 · pith_short_12: 64WZ2LE2AJHO · pith_short_16: 64WZ2LE2AJHOZHOL · pith_short_8: 64WZ2LE2

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/64WZ2LE2AJHOZHOLYRVIAYU2WD \
  | 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: f72d9d2c9a024eec9dcbc46a80629ab0c4e972f505bbd0596550128c92f53776

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1d3657f58fddeac839f06af32e39b3ba396f499900a4f7836b10edef928afd9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-05-10T20:04:21Z",
    "title_canon_sha256": "859ab887e9962aab05336f470937dee6e92e5b17636b290944574037bc9b4722"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.1653",
    "kind": "arxiv",
    "version": 1
  }
}