Pith Number

pith:WWE5D3F3

pith:2009:WWE5D3F3PXZ2SRQU5BD2CDKR6E

not attested not anchored not stored refs pending

How do galaxies populate Dark Matter halos?

Cheng Li, Michael Boylan-Kolchin, Qi Guo, Simon White

arxiv:0909.4305 v3 · 2009-09-24 · astro-ph.CO · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WWE5D3F3PXZ2SRQU5BD2CDKR6E}

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	2026-05-18T04:38:17.384046Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b589d1ecbb7df3a94614e847a10d51f13486c1999fbf1f1099824fdf54eb6870

Aliases

arxiv: 0909.4305 · arxiv_version: 0909.4305v3 · doi: 10.48550/arxiv.0909.4305 · pith_short_12: WWE5D3F3PXZ2 · pith_short_16: WWE5D3F3PXZ2SRQU · pith_short_8: WWE5D3F3

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/WWE5D3F3PXZ2SRQU5BD2CDKR6E \
  | 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: b589d1ecbb7df3a94614e847a10d51f13486c1999fbf1f1099824fdf54eb6870

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "95514f57fcf3b0b915b297132fcc326121afbfa2a1102e2353b1191b5ea2ffb5",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-09-24T15:14:12Z",
    "title_canon_sha256": "594e5d549cf81a74bcd4b6d67cf6081a9c173b9427f63fe3b51615895844a109"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.4305",
    "kind": "arxiv",
    "version": 3
  }
}