Pith Number

pith:PKQITWLV

pith:2011:PKQITWLV7DKKWQYN4MLFJNRHB2

not attested not anchored not stored refs pending

Seyfert galaxies: Nuclear Radio Structure and Unification

Denise Gabuzda, Dharam V. Lal, Prajval Shastri

arxiv:1102.3955 v1 · 2011-02-19 · 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{PKQITWLV7DKKWQYN4MLFJNRHB2}

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	2026-05-18T02:03:07.585027Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7aa089d975f8d4ab430de31654b6270e9431e95ba7f3ea3b96f1ecc89c11be79

Aliases

arxiv: 1102.3955 · arxiv_version: 1102.3955v1 · doi: 10.48550/arxiv.1102.3955 · pith_short_12: PKQITWLV7DKK · pith_short_16: PKQITWLV7DKKWQYN · pith_short_8: PKQITWLV

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/PKQITWLV7DKKWQYN4MLFJNRHB2 \
  | 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: 7aa089d975f8d4ab430de31654b6270e9431e95ba7f3ea3b96f1ecc89c11be79

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f94051729cfa658c11b390ef5ca468a4b662f18843bac5a4da90cd7ee352704",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-02-19T03:31:16Z",
    "title_canon_sha256": "c5d21f395cea0d53158bae23fe09b195ad1033ca2dd9a45fd804b66d728a6209"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.3955",
    "kind": "arxiv",
    "version": 1
  }
}