Pith Number

pith:KVLNDYEW

pith:2004:KVLNDYEWYG3JJY5FEZ5S5CZBZW

not attested not anchored not stored refs pending

Disk Galaxy Formation in a LambdaCDM Universe

(2) NAOJ, (3) MPA, B. E. Robertson (1), Garching), L. Hernquist (1) ((1) Harvard-Smithsonian CfA, N. Yoshida (2), V. Springel (3)

arxiv:astro-ph/0401252 v1 · 2004-01-13 · 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{KVLNDYEWYG3JJY5FEZ5S5CZBZW}

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	2026-07-04T15:45:42.486591Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5556d1e096c1b694e3a5267b2e8b21cdaa23c56bb97c96edcff32ed901060714

Aliases

arxiv: astro-ph/0401252 · arxiv_version: astro-ph/0401252v1 · doi: 10.48550/arxiv.astro-ph/0401252 · pith_short_12: KVLNDYEWYG3J · pith_short_16: KVLNDYEWYG3JJY5F · pith_short_8: KVLNDYEW

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/KVLNDYEWYG3JJY5FEZ5S5CZBZW \
  | 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: 5556d1e096c1b694e3a5267b2e8b21cdaa23c56bb97c96edcff32ed901060714

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0024c41628684560870ea6b640e65d0c369cf999154f1295b04d21ff5877122",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-01-13T21:06:16Z",
    "title_canon_sha256": "e9aec52e07c3b07ff08cb8980ba363134b16b63fa994cfd39b7b0445ddfb1fd1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0401252",
    "kind": "arxiv",
    "version": 1
  }
}