Pith Number

pith:M3OUBLD3

pith:2012:M3OUBLD3YOO5HAO2KYQNUFGS74

not attested not anchored not stored refs pending

A Uniformly Selected Sample of Low-mass Black Holes in Seyfert 1 Galaxies

2), (2) Carnegie Observatories, (3) National Astronomical Observatories, (4) U. of Arizona, 5), (5) Polar Research Institute of China), China, Hongyan Zhou (1, Luis C. Ho (2), Ning Jiang (1) ((1) Univ. of Sci., Tech. of China, Ting-Gui Wang (1), Weimin Yuan (3), Xiao-Bo Dong (1, Xiaohui Fan (4)

arxiv:1206.3843 v1 · 2012-06-18 · astro-ph.GA · 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{M3OUBLD3YOO5HAO2KYQNUFGS74}

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	2026-05-18T01:56:51.886302Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66dd40ac7bc39dd381da5620da14d2ff2886a899fc238ddff6fb65869a2ec41f

Aliases

arxiv: 1206.3843 · arxiv_version: 1206.3843v1 · doi: 10.48550/arxiv.1206.3843 · pith_short_12: M3OUBLD3YOO5 · pith_short_16: M3OUBLD3YOO5HAO2 · pith_short_8: M3OUBLD3

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/M3OUBLD3YOO5HAO2KYQNUFGS74 \
  | 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: 66dd40ac7bc39dd381da5620da14d2ff2886a899fc238ddff6fb65869a2ec41f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bab15feacd024eba3f886b16724354af1ff787199944e0d99374d593dbb78f6",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-06-18T07:48:40Z",
    "title_canon_sha256": "741dc8fef6032d04d90c6e241c3bd191025f1e67846cb2d860f6bea4ef5d4d38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.3843",
    "kind": "arxiv",
    "version": 1
  }
}