Pith Number

pith:WD23VW5Q

pith:2013:WD23VW5QCFET7ZGDOKKX6F4EWH

not attested not anchored not stored refs pending

Radio-Continuum Study of the Nearby Sculptor Group Galaxies. Part 2: NGC 55 at {\lambda}=20, 13, 6 and 3 cm

Ain Y. De Horta, Andrew N. O'Brien, Danica Draskovi\'c, Evan J. Crawford, Graeme F. Wong, Jared P. Napier, Jeff L. Payne, Jordan D. Collier, Miroslav D. Filipovi\'c, Nicholas F. H. Tothill, Srdjan Kotus, Stephen A. Griffith, Thomas G. Pannuti, Wayne D. Staggs

arxiv:1305.3374 v1 · 2013-05-15 · 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{WD23VW5QCFET7ZGDOKKX6F4EWH}

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	2026-05-18T03:25:36.014243Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0f5badbb011493fe4c372957f1784b1c5172256770a33b99d037f48e80a6cfd

Aliases

arxiv: 1305.3374 · arxiv_version: 1305.3374v1 · doi: 10.48550/arxiv.1305.3374 · pith_short_12: WD23VW5QCFET · pith_short_16: WD23VW5QCFET7ZGD · pith_short_8: WD23VW5Q

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/WD23VW5QCFET7ZGDOKKX6F4EWH \
  | 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: b0f5badbb011493fe4c372957f1784b1c5172256770a33b99d037f48e80a6cfd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5836f71fed5f2f98ce2a15f0419ab5b58c8bd281484d982eef95ca30979f7f79",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-05-15T07:17:19Z",
    "title_canon_sha256": "0ba71ab2d7fa95241b191d1326534b29dab0d580e73c754a53e7291be29461bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.3374",
    "kind": "arxiv",
    "version": 1
  }
}