Pith Number

pith:BVSUGCGC

pith:2013:BVSUGCGCFCSMX3L22YKBIZJCFP

not attested not anchored not stored refs pending

WSRT observations and surface photometry of two unusual spiral galaxies

A.S. Saburova, A.V. Zasov, D.V. Bizyaev, G.I.G. J\'ozsa

arxiv:1305.3112 v1 · 2013-05-14 · 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{BVSUGCGCFCSMX3L22YKBIZJCFP}

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	2026-05-18T01:50:02.358354Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d654308c228a4cbed7ad6141465222bf62910256aca3907f1e4e7be1861d057

Aliases

arxiv: 1305.3112 · arxiv_version: 1305.3112v1 · doi: 10.48550/arxiv.1305.3112 · pith_short_12: BVSUGCGCFCSM · pith_short_16: BVSUGCGCFCSMX3L2 · pith_short_8: BVSUGCGC

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/BVSUGCGCFCSMX3L22YKBIZJCFP \
  | 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: 0d654308c228a4cbed7ad6141465222bf62910256aca3907f1e4e7be1861d057

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d1cf4a86ac0733ccfb2935c16c4e9d0a782ac7c9962fd037538767d7d5b4375",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-05-14T11:19:44Z",
    "title_canon_sha256": "1706cd1d6eb353520440a537726521344829955420b404a8a65e573930decde3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.3112",
    "kind": "arxiv",
    "version": 1
  }
}