Pith Number

pith:PBWP426L

pith:2010:PBWP426L7JGORS3D2RXWMC5GJ2

not attested not anchored not stored refs pending

New Estimators of Black Hole Mass in Active Galactic Nuclei with Hydrogen Paschen Lines

Dohyeong Kim, Minjin Kim, Myungshin Im

arxiv:1012.1112 v1 · 2010-12-06 · 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{PBWP426L7JGORS3D2RXWMC5GJ2}

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	2026-05-18T02:23:15.533184Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

786cfe6bcbfa4ce8cb63d46f660ba64ea13347e781d5a8bc257a5dc0f8e9635e

Aliases

arxiv: 1012.1112 · arxiv_version: 1012.1112v1 · doi: 10.48550/arxiv.1012.1112 · pith_short_12: PBWP426L7JGO · pith_short_16: PBWP426L7JGORS3D · pith_short_8: PBWP426L

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/PBWP426L7JGORS3D2RXWMC5GJ2 \
  | 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: 786cfe6bcbfa4ce8cb63d46f660ba64ea13347e781d5a8bc257a5dc0f8e9635e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "805ac7925b136c6e24e2015531e865c3a998a1d06624757ab65029ae5c5007d9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-12-06T10:03:54Z",
    "title_canon_sha256": "f23abe236de441ba9cc57de74acb88091bf9513f79206f63a21f5c3924a86081"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.1112",
    "kind": "arxiv",
    "version": 1
  }
}