Pith Number

pith:KCOZRHJS

pith:2012:KCOZRHJSYYMZ5VEQDQQKQ6TI5V

not attested not anchored not stored refs pending

Self-Perpetuating Spiral Arms in Disk Galaxies

Elena D'Onghia, Lars Hernquist (Harvard/CfA), Mark Vogelsberger

arxiv:1204.0513 v2 · 2012-04-02 · 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{KCOZRHJSYYMZ5VEQDQQKQ6TI5V}

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

Wrinkles in Time. II. Stellar Age Trends in Kinematic Signatures from Transient Spiral Structure

Receipt and verification

First computed	2026-05-18T01:57:57.945103Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

509d989d32c6199ed4901c20a87a68ed7816e0372652a3aa0c00426304263240

Aliases

arxiv: 1204.0513 · arxiv_version: 1204.0513v2 · doi: 10.48550/arxiv.1204.0513 · pith_short_12: KCOZRHJSYYMZ · pith_short_16: KCOZRHJSYYMZ5VEQ · pith_short_8: KCOZRHJS

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/KCOZRHJSYYMZ5VEQDQQKQ6TI5V \
  | 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: 509d989d32c6199ed4901c20a87a68ed7816e0372652a3aa0c00426304263240

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6534a711324b0c00717b3f260f6f42d0db6a7cd140ab0a81f427590f07fdf37",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-04-02T20:00:00Z",
    "title_canon_sha256": "648eaf6a8d0a0728b8012d5456978966bd2360d34e62c333ce03fd5194432db5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.0513",
    "kind": "arxiv",
    "version": 2
  }
}