Pith Number

pith:WA3IBK4Y

pith:2013:WA3IBK4YE6CZAKNEVYLRRCMUHX

not attested not anchored not stored refs pending

2MTF II. New Parkes 21-cm observations of 303 southern galaxies

Aidan C. Crook, Barbel S. Koribalski, Christopher M. Springob, D. Heath Jones, Karen L. Masters, Lister Staveley-Smith, Lucas M. Macri, Tao Hong, Tom H. Jarrett

arxiv:1304.0882 v1 · 2013-04-03 · 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{WA3IBK4YE6CZAKNEVYLRRCMUHX}

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	2026-05-18T01:50:49.680088Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b03680ab9827859029a4ae171889943ddd88d723126f95de842ba00532d1548e

Aliases

arxiv: 1304.0882 · arxiv_version: 1304.0882v1 · doi: 10.48550/arxiv.1304.0882 · pith_short_12: WA3IBK4YE6CZ · pith_short_16: WA3IBK4YE6CZAKNE · pith_short_8: WA3IBK4Y

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/WA3IBK4YE6CZAKNEVYLRRCMUHX \
  | 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: b03680ab9827859029a4ae171889943ddd88d723126f95de842ba00532d1548e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56a3a716784673dcaa8d8eabc2ce60a26fed4720b872fce40084e3725e185d4f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-04-03T09:19:50Z",
    "title_canon_sha256": "8b21a353a827fc89de8b85577ab6794c5e1c51dc01a531cc299da5ff0130d7d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.0882",
    "kind": "arxiv",
    "version": 1
  }
}