Pith Number

pith:Q43N2JL5

pith:2004:Q43N2JL5WGJQVDCJZYJPMYXZXO

not attested not anchored not stored refs pending

Simulating the Formation of Galaxy Clusters

Andrey V. Kravtsov (KICP, Daisuke Nagai, U.Chicago)

arxiv:astro-ph/0404350 v1 · 2004-04-19 · 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{Q43N2JL5WGJQVDCJZYJPMYXZXO}

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	2026-07-04T16:43:35.977089Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8736dd257db1930a8c49ce12f662f9bbae18b071e0df0ab5f188e81aa34d0e5d

Aliases

arxiv: astro-ph/0404350 · arxiv_version: astro-ph/0404350v1 · doi: 10.48550/arxiv.astro-ph/0404350 · pith_short_12: Q43N2JL5WGJQ · pith_short_16: Q43N2JL5WGJQVDCJ · pith_short_8: Q43N2JL5

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/Q43N2JL5WGJQVDCJZYJPMYXZXO \
  | 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: 8736dd257db1930a8c49ce12f662f9bbae18b071e0df0ab5f188e81aa34d0e5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ddfb39293fed06435d0de4d09a04067076630b78ce2bda9c67ff5c15a31b6c5c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-04-19T17:00:58Z",
    "title_canon_sha256": "866a156ccfe461ccda97d1e001aeeee72229ca7855a9038ce9bfdaee85ffe155"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0404350",
    "kind": "arxiv",
    "version": 1
  }
}