Pith Number

pith:NRPBI5L3

pith:2012:NRPBI5L3WDEPQWTA2ZPHW2NPZU

not attested not anchored not stored refs pending

Disentangling the circumnuclear environs of Centaurus A: Gaseous Spiral Arms in a Giant Elliptical Galaxy

A. B. Peck, C. Henkel, D. Espada, D. Iono, F. Israel, S. Matsushita

arxiv:1208.0404 v1 · 2012-08-02 · astro-ph.GA · 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{NRPBI5L3WDEPQWTA2ZPHW2NPZU}

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	2026-05-18T01:55:23.979844Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c5e14757bb0c8f85a60d65e7b69afcd2a5537bcb56f6fd78326f599fce86efb

Aliases

arxiv: 1208.0404 · arxiv_version: 1208.0404v1 · doi: 10.48550/arxiv.1208.0404 · pith_short_12: NRPBI5L3WDEP · pith_short_16: NRPBI5L3WDEPQWTA · pith_short_8: NRPBI5L3

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/NRPBI5L3WDEPQWTA2ZPHW2NPZU \
  | 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: 6c5e14757bb0c8f85a60d65e7b69afcd2a5537bcb56f6fd78326f599fce86efb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb33889e2ab37151b3aebf7fe425b51afa1d706757cfc548b5cf6d42b13155f2",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-08-02T05:46:29Z",
    "title_canon_sha256": "d1fd331b90f631562cc31b588f67d13e584ee7702b74e6a488d26aa7bc08440a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.0404",
    "kind": "arxiv",
    "version": 1
  }
}