Pith Number

pith:PXW3XFRI

pith:2013:PXW3XFRIABVT2MNTN7C7DF2TFH

not attested not anchored not stored refs pending

Density waves and star formation in grand design spirals

\'A. Bongiovanni, A Tomita, B. Cedr\'es, H. Casta\~neda, J. Cepa, M. S\'achez-Portal

arxiv:1310.4325 v1 · 2013-10-16 · 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{PXW3XFRIABVT2MNTN7C7DF2TFH}

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	2026-05-18T01:46:58.934099Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7dedbb9628006b3d31b36fc5f1975329f97bf15459484543e96d9b402622eedd

Aliases

arxiv: 1310.4325 · arxiv_version: 1310.4325v1 · doi: 10.48550/arxiv.1310.4325 · pith_short_12: PXW3XFRIABVT · pith_short_16: PXW3XFRIABVT2MNT · pith_short_8: PXW3XFRI

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/PXW3XFRIABVT2MNTN7C7DF2TFH \
  | 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: 7dedbb9628006b3d31b36fc5f1975329f97bf15459484543e96d9b402622eedd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "006ca0937f71e2110b957692f47ca9fcc08b32e9cbfad7401d47b42bc22a45d7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-10-16T10:45:09Z",
    "title_canon_sha256": "c0c272fb3fa0578c1efe88b4427e6962b9fafe82ef23339914dd841303b51702"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.4325",
    "kind": "arxiv",
    "version": 1
  }
}