Pith Number

pith:CZBO53GL

pith:2013:CZBO53GLHBJTCFDEM3TF5KCGBS

not attested not anchored not stored refs pending

Do Most Active Galactic Nuclei Live in High Star Formation Nuclear Cusps?

Marcio Melendez, Michael Koss, Richard F. Mushotzky, T. Taro Shimizu

arxiv:1312.7766 v1 · 2013-12-30 · 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{CZBO53GLHBJTCFDEM3TF5KCGBS}

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	2026-05-18T01:25:16.354454Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1642eeeccb385331146466e65ea8460cbf797e8f49749447a6df099a0d9d856f

Aliases

arxiv: 1312.7766 · arxiv_version: 1312.7766v1 · doi: 10.48550/arxiv.1312.7766 · pith_short_12: CZBO53GLHBJT · pith_short_16: CZBO53GLHBJTCFDE · pith_short_8: CZBO53GL

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/CZBO53GLHBJTCFDEM3TF5KCGBS \
  | 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: 1642eeeccb385331146466e65ea8460cbf797e8f49749447a6df099a0d9d856f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "daf241f111cc8c3fe82fdefabfa2d2d0def544b8ec13a1e114d0af17341a6bc5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-12-30T16:25:13Z",
    "title_canon_sha256": "304986f89a2b728cd06b38beaf06b24d190a745a55ce8adc4d7fc8b06e11a4c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.7766",
    "kind": "arxiv",
    "version": 1
  }
}