Pith Number

pith:4SEPVPRE

pith:2013:4SEPVPRENQURBYNMX5BDD22NW2

not attested not anchored not stored refs pending

The Bluedisks project, a study of unusually HI-rich galaxies: I. HI Sizes and Morphology

Cheng Li, Enci Wang, Frank Bigiel, Guinevere Kauffmann, Gyula I. G. J\'ozsa, Jarle Brinchmann, Jing Wang, J\"urgen Kerp, M.A.W. Verheijen, Milan den Heijer, Paolo Serra, Thijs van der Hulst, Tom Oosterloo

arxiv:1303.3538 v2 · 2013-03-14 · 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{4SEPVPRENQURBYNMX5BDD22NW2}

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	2026-05-18T01:51:07.241282Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e488fabe246c2910e1acbf4231eb4db6a19c416f6c996c4d0265321957baf871

Aliases

arxiv: 1303.3538 · arxiv_version: 1303.3538v2 · doi: 10.48550/arxiv.1303.3538 · pith_short_12: 4SEPVPRENQUR · pith_short_16: 4SEPVPRENQURBYNM · pith_short_8: 4SEPVPRE

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/4SEPVPRENQURBYNMX5BDD22NW2 \
  | 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: e488fabe246c2910e1acbf4231eb4db6a19c416f6c996c4d0265321957baf871

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "264f23154bce78e48e85cc645b69f9d92bcbeacbfb1295d92a49297a1c172184",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-03-14T18:17:08Z",
    "title_canon_sha256": "27fda6eceb6c76a1a97a958219394b0babccb8ecb9de4776745c49a9783d4178"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.3538",
    "kind": "arxiv",
    "version": 2
  }
}