Pith Number

pith:U4LNG7YC

pith:2012:U4LNG7YCYDRD5A72LC2MNIJLEI

not attested not anchored not stored refs pending

On the Link Between Central Black Holes, Bar Dynamics, and Dark Matter Halos in Spiral Galaxies

2), (2) Arkansas Center for Space, (3) University of Oulu, 4), 4) ((1) University of Arkansas at Little Rock, (4) University of Arkansas), Amber D. Sierra (1), Claud H. S. Lacy (2, Daniel Kennefick (2, Heikki Salo (3), Ismaeel Al-Baidhany (1), Julia Kennefick (2, Marc S. Seigar (1, Patrick Treuthardt (1, Planetary Sciences

arxiv:1204.4210 v1 · 2012-04-18 · 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{U4LNG7YCYDRD5A72LC2MNIJLEI}

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	2026-05-18T01:57:49.059937Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a716d37f02c0e23e83fa58b4c6a12b223d6fd97a7d90c45c2633f1ff1c29d3cc

Aliases

arxiv: 1204.4210 · arxiv_version: 1204.4210v1 · doi: 10.48550/arxiv.1204.4210 · pith_short_12: U4LNG7YCYDRD · pith_short_16: U4LNG7YCYDRD5A72 · pith_short_8: U4LNG7YC

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/U4LNG7YCYDRD5A72LC2MNIJLEI \
  | 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: a716d37f02c0e23e83fa58b4c6a12b223d6fd97a7d90c45c2633f1ff1c29d3cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b8099f0d8d5df9a381de2c9ef95522c40bf5f0332d1cb487cf709eaa56b3dcd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-04-18T21:11:03Z",
    "title_canon_sha256": "a45b295ab7dbc2b961476cb400ef163aaaca80a06a40a2e9e7cfc04d42f34750"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.4210",
    "kind": "arxiv",
    "version": 1
  }
}