Pith Number

pith:B4TCSC2E

pith:2012:B4TCSC2ETJL25VAOXXPXMRQUOX

not attested not anchored not stored refs pending

Exploring the unusually high black hole-to-bulge mass ratios in NGC4342 and NGC4291: the asynchronous growth of bulges and black holes

(2) MPA, (3) Case Western Reserve University, (4) Partner Group of the MPA, 5), (5) Institute for Computational Cosmology, (6) University of Innsbruck), Akos Bogdan (1), Alexey Vikhlinin (1), Chinese Academy of Sciences, Christine Jones (1) ((1) SAO, Eugene Churazov (2), Irina Zhuravleva (2), J. Christopher Mihos (3), National Astronomical Observatories, Paul E. J. Nulsen (1), Paul Harding (3), Qi Guo (4, Ralph P. Kraft (1), Sabine Schindler (6), William R. Forman (1), Zhiyuan Li (1)

arxiv:1203.1641 v2 · 2012-03-07 · 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{B4TCSC2ETJL25VAOXXPXMRQUOX}

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	2026-05-18T01:58:13.364836Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f26290b449a57aed40ebddf76461475c3b8c5f41cf9963a562059e1733a44b2

Aliases

arxiv: 1203.1641 · arxiv_version: 1203.1641v2 · doi: 10.48550/arxiv.1203.1641 · pith_short_12: B4TCSC2ETJL2 · pith_short_16: B4TCSC2ETJL25VAO · pith_short_8: B4TCSC2E

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/B4TCSC2ETJL25VAOXXPXMRQUOX \
  | 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: 0f26290b449a57aed40ebddf76461475c3b8c5f41cf9963a562059e1733a44b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b0b8ccdd52c0ea89da7d634aa4034c5772315ebdf851e3d86761546f42ba6e2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-03-07T21:39:31Z",
    "title_canon_sha256": "fde5f03d5934eb066892f51291ae84836fa18675a5848c208c6461a3528fc251"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.1641",
    "kind": "arxiv",
    "version": 2
  }
}