Pith Number

pith:V2IOGREU

pith:2008:V2IOGREURB2JQL2G3EGHEX74LE

not attested not anchored not stored refs pending

A large sample of low surface brightness disk galaxies from the SDSS. I: The sample and the stellar populations

B. Zhang, F. Hammer, F. S. Liu, G. H. Zhong, J. Y. Hu, L. C. Deng, X. Y. Chen, Y. C. Liang

arxiv:0809.3099 v1 · 2008-09-18 · 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{V2IOGREURB2JQL2G3EGHEX74LE}

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	2026-05-18T02:15:34.367963Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae90e344948874982f46d90c725ffc593a2a92e2de3a634d1885c19a26701f97

Aliases

arxiv: 0809.3099 · arxiv_version: 0809.3099v1 · doi: 10.48550/arxiv.0809.3099 · pith_short_12: V2IOGREURB2J · pith_short_16: V2IOGREURB2JQL2G · pith_short_8: V2IOGREU

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/V2IOGREURB2JQL2G3EGHEX74LE \
  | 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: ae90e344948874982f46d90c725ffc593a2a92e2de3a634d1885c19a26701f97

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f837c24ff8c7a4fdfb687e711bd6fce0e5a47065fe5d5ca5cfb7dbe4e1a740e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-18T08:33:32Z",
    "title_canon_sha256": "6a4811e9a348f5e887fd942de68a619e4a636f333c325ef5c69f0189411c83d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.3099",
    "kind": "arxiv",
    "version": 1
  }
}