Pith Number

pith:34NOIKOO

pith:2009:34NOIKOOFX2I3GVSU53UVZCZIT

not attested not anchored not stored refs pending

Statistical Tools for Classifying Galaxy Group Dynamics

Annie Hou, David J. Wilman, Laura C. Parker, William E. Harris

arxiv:0908.0938 v1 · 2009-08-06 · astro-ph.GA · 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{34NOIKOOFX2I3GVSU53UVZCZIT}

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	2026-05-18T02:12:36.938412Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df1ae429ce2df48d9ab2a7774ae45944ffeb113019d60a30ce3e7c414b09af96

Aliases

arxiv: 0908.0938 · arxiv_version: 0908.0938v1 · doi: 10.48550/arxiv.0908.0938 · pith_short_12: 34NOIKOOFX2I · pith_short_16: 34NOIKOOFX2I3GVS · pith_short_8: 34NOIKOO

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/34NOIKOOFX2I3GVSU53UVZCZIT \
  | 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: df1ae429ce2df48d9ab2a7774ae45944ffeb113019d60a30ce3e7c414b09af96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd740efd342f374d51005d40d55c223ee8e9514b8ef938b9255241440c225de8",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-08-06T19:47:54Z",
    "title_canon_sha256": "b6e69464d819fb80d56c7a62b00c8004faade5bee07af9c832c32d3da3b0e979"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.0938",
    "kind": "arxiv",
    "version": 1
  }
}