Pith Number

pith:NCLB4ZRF

pith:2013:NCLB4ZRF4FYSOBARZKXVGGTGGJ

not attested not anchored not stored refs pending

On the galactic spin of barred disk galaxies

Bernardo Cervantes-Sodi, Changbom Park, Cheng Li, Lixin Wang

arxiv:1303.3696 v2 · 2013-03-15 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NCLB4ZRF4FYSOBARZKXVGGTGGJ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:51:06.916606Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68961e6625e171270411caaf531a663270838c53dad904bf2ac5170adb3d1864

Aliases

arxiv: 1303.3696 · arxiv_version: 1303.3696v2 · doi: 10.48550/arxiv.1303.3696 · pith_short_12: NCLB4ZRF4FYS · pith_short_16: NCLB4ZRF4FYSOBAR · pith_short_8: NCLB4ZRF

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/NCLB4ZRF4FYSOBARZKXVGGTGGJ \
  | 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: 68961e6625e171270411caaf531a663270838c53dad904bf2ac5170adb3d1864

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f781ca1b4fb37bac43135e8517112998a3a6622c1c447f1aeb83fd45604934bb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-03-15T07:31:26Z",
    "title_canon_sha256": "f326b513aa41e48c1273ede8c5480c329ebd8921ea95541b40e7175ae9f67acb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.3696",
    "kind": "arxiv",
    "version": 2
  }
}