Pith Number

pith:WIT4Z7MM

pith:2004:WIT4Z7MM3QN4MOWI3WQXTHNGK4

not attested not anchored not stored refs pending

A Dynamical Model for the Orbit of the Andromeda Galaxy M31 and the Origin of the Local Group of Galaxies

Aichi University of Education), Astronomy, Astrophysics, M. Fujimoto (Department of Physics, Nagoya University), T. Sawa (Department of Physics

arxiv:astro-ph/0404547 v3 · 2004-04-28 · 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{WIT4Z7MM3QN4MOWI3WQXTHNGK4}

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	2026-05-18T01:40:37.095313Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b227ccfd8cdc1bc63ac8dda1799da6572ad417fd714698f4c07e204fa653afcd

Aliases

arxiv: astro-ph/0404547 · arxiv_version: astro-ph/0404547v3 · doi: 10.48550/arxiv.astro-ph/0404547 · pith_short_12: WIT4Z7MM3QN4 · pith_short_16: WIT4Z7MM3QN4MOWI · pith_short_8: WIT4Z7MM

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/WIT4Z7MM3QN4MOWI3WQXTHNGK4 \
  | 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: b227ccfd8cdc1bc63ac8dda1799da6572ad417fd714698f4c07e204fa653afcd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d48d5b3a7c1251017523f753cfb4d4f8f02b8e83f6cdab7f7a43969f93a445bc",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-04-28T02:15:40Z",
    "title_canon_sha256": "403f84ab5b01cab94a2e131ab0c74b258accc5186cfb78367c32b7e8b2552ce3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0404547",
    "kind": "arxiv",
    "version": 3
  }
}