Pith Number

pith:K6ZJ2LVE

pith:2013:K6ZJ2LVEWHC7ZUY3W2GRZR7IMV

not attested not anchored not stored refs pending

The Nature of Obscuration in AGN: I. Insights from Host Galaxies

Cheng Li, Guinevere Kauffmann, Jing Wang, Li Shao, Timothy M. Heckman

arxiv:1304.7175 v2 · 2013-04-26 · 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{K6ZJ2LVEWHC7ZUY3W2GRZR7IMV}

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	2026-05-18T01:50:21.356403Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57b29d2ea4b1c5fcd31bb68d1cc7e86554252ceca16c79b023d231fa48b508e2

Aliases

arxiv: 1304.7175 · arxiv_version: 1304.7175v2 · doi: 10.48550/arxiv.1304.7175 · pith_short_12: K6ZJ2LVEWHC7 · pith_short_16: K6ZJ2LVEWHC7ZUY3 · pith_short_8: K6ZJ2LVE

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/K6ZJ2LVEWHC7ZUY3W2GRZR7IMV \
  | 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: 57b29d2ea4b1c5fcd31bb68d1cc7e86554252ceca16c79b023d231fa48b508e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ae1046000f128648d4b70455c2e51aaa3311712a5718bdbb58ab92aa90a230c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-04-26T14:16:09Z",
    "title_canon_sha256": "457318847a3d200251997d4ef5ea815e1c69e5318c04f5be459719f879fe0bae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.7175",
    "kind": "arxiv",
    "version": 2
  }
}