Pith Number

pith:BBK7VEAG

pith:2018:BBK7VEAG6HAL4VFQAINV3PXXSA

not attested not anchored not stored refs pending

Supermassive Black Holes with High Accretion Rates in Active Galactic Nuclei. VIII. Structure of the Broad-Line Region and Mass of the Central Black Hole in Mrk 142

Chen Hu, Jian-Min Wang, Jie Qiu, Jin-Ming Bai, Kai-Xing Lu, Luis C. Ho, Pu Du, (SEAMBH collaboration), Wei-Hao Bian, Yan-Rong Li, Ye-Fei Yuan, Ying-Ke Huang, Yu-Yang Songsheng

arxiv:1811.06302 v1 · 2018-11-15 · astro-ph.GA · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BBK7VEAG6HAL4VFQAINV3PXXSA}

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	2026-05-17T23:57:37.415476Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0855fa9006f1c0be54b0021b5dbef79024afb99dc7942f0eb3145e8074a15bac

Aliases

arxiv: 1811.06302 · arxiv_version: 1811.06302v1 · doi: 10.48550/arxiv.1811.06302 · pith_short_12: BBK7VEAG6HAL · pith_short_16: BBK7VEAG6HAL4VFQ · pith_short_8: BBK7VEAG

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/BBK7VEAG6HAL4VFQAINV3PXXSA \
  | 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: 0855fa9006f1c0be54b0021b5dbef79024afb99dc7942f0eb3145e8074a15bac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04e4457dda4cc7d0610bb729b2c9856040214d15fa5b7fb04d4683bcbb7c3ffe",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-11-15T11:44:39Z",
    "title_canon_sha256": "634e8ee4e34d9c365f9b60933a6761e7e1591cf587bc3c5d218710de33741bec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.06302",
    "kind": "arxiv",
    "version": 1
  }
}