Pith Number

pith:LF4XMNFC

pith:2013:LF4XMNFC5DXGJIOLMLPPYR62MM

not attested not anchored not stored refs pending

The Onset of Spiral Structure in the Universe

Bruce G. Elmegreen, Debra Meloy Elmegreen

arxiv:1312.2215 v1 · 2013-12-08 · 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{LF4XMNFC5DXGJIOLMLPPYR62MM}

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.

Cited by

1 paper in Pith

Investigating the young stellar populations and hierarchies in nearby galaxies with the UVIT. II. Presenting the properties of ~25,000 UV-detected star-forming clumps

Receipt and verification

First computed	2026-05-18T01:45:57.478890Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59797634a2e8ee64a1cb62defc47da630fb9a3ea094b2f737a85cbb8ac150807

Aliases

arxiv: 1312.2215 · arxiv_version: 1312.2215v1 · doi: 10.48550/arxiv.1312.2215 · pith_short_12: LF4XMNFC5DXG · pith_short_16: LF4XMNFC5DXGJIOL · pith_short_8: LF4XMNFC

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/LF4XMNFC5DXGJIOLMLPPYR62MM \
  | 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: 59797634a2e8ee64a1cb62defc47da630fb9a3ea094b2f737a85cbb8ac150807

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e81e0eb4110b100c9e98f251b25800061f0c36f7c21a0208292fa405c3d1e4e7",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-12-08T14:08:38Z",
    "title_canon_sha256": "8910349951bdac5fe7aae62cda4bd76cdda90e4f92fa8f93c95093b97e209331"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.2215",
    "kind": "arxiv",
    "version": 1
  }
}