Pith Number

pith:Y2YV24EA

pith:2009:Y2YV24EA7WZS4MYMSWOMITPQ6Y

not attested not anchored not stored refs pending

The Warped Disk of Centaurus A from a radius of 2 to 6500 pc

Alice C. Quillen, Daniel Espada, Nadine Neumayer, Tom Oosterloo

arxiv:0912.0632 v1 · 2009-12-03 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y2YV24EA7WZS4MYMSWOMITPQ6Y}

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	2026-05-18T02:10:34.310510Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c6b15d7080fdb32e330c959cc44df0f6074020b5a4a5e0a6698019017f2d060b

Aliases

arxiv: 0912.0632 · arxiv_version: 0912.0632v1 · doi: 10.48550/arxiv.0912.0632 · pith_short_12: Y2YV24EA7WZS · pith_short_16: Y2YV24EA7WZS4MYM · pith_short_8: Y2YV24EA

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/Y2YV24EA7WZS4MYMSWOMITPQ6Y \
  | 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: c6b15d7080fdb32e330c959cc44df0f6074020b5a4a5e0a6698019017f2d060b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5463908fc207b9cde470146f25dc76d6424caf82487c3882e3ef13aab77532ca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-12-03T11:45:29Z",
    "title_canon_sha256": "4d1d97b94b2b6f2f3548640b4c2158ee82b8bd26c624888f3a778e3dea91c142"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.0632",
    "kind": "arxiv",
    "version": 1
  }
}