Pith Number

pith:SRPHPP67

pith:2009:SRPHPP67NKP2FEGJBSWFI6W3BS

not attested not anchored not stored refs pending

GALEX Ultraviolet Imaging of Dwarf Galaxies and Star Formation

3) ((1) Lowell Observatory (2) IBM T. J. Watson Research Center, (3) Scripps Institution of Oceanography), Bonnie C. Ludka (1, Bruce G. Elmegreen (2), Deidre A. Hunter (1)

arxiv:0911.4319 v1 · 2009-11-23 · 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{SRPHPP67NKP2FEGJBSWFI6W3BS}

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	2026-05-18T02:10:37.608555Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

945e77bfdf6a9fa290c90cac547adb0c9c413aa13b7927528163f78e9708c3d3

Aliases

arxiv: 0911.4319 · arxiv_version: 0911.4319v1 · doi: 10.48550/arxiv.0911.4319 · pith_short_12: SRPHPP67NKP2 · pith_short_16: SRPHPP67NKP2FEGJ · pith_short_8: SRPHPP67

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/SRPHPP67NKP2FEGJBSWFI6W3BS \
  | 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: 945e77bfdf6a9fa290c90cac547adb0c9c413aa13b7927528163f78e9708c3d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24053f4e5259689ebf7d31864f5a71a4af2752ef35bdb18a02f5c13683758ee6",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-11-23T03:10:02Z",
    "title_canon_sha256": "17047738afb28701c3aba5e19707026a73cf669a6117df87269ec8467606ff39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.4319",
    "kind": "arxiv",
    "version": 1
  }
}