Pith Number

pith:ZKKK2URF

pith:2025:ZKKK2URFLOLT3XHZZ6P7PSHHOZ

not attested not anchored not stored refs pending

A 22-Billion Solar Mass Black Hole in Holmberg 15A with Keck KCWI Spectroscopy and Triaxial Orbit Modeling

Chung-Pei Ma, Emily R. Liepold, Jonelle L. Walsh

arxiv:2501.01493 v1 · 2025-01-02 · 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{ZKKK2URFLOLT3XHZZ6P7PSHHOZ}

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.

Cited by

1 paper in Pith

Realization Variance of Gravitational Wave Background Anisotropies from Shot Noise for Pulsar Timing Arrays

Receipt and verification

First computed	2026-07-05T09:56:25.721136Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca94ad52255b973ddcf9cf9ff7c8e7764c32133e790c6294b551e9e4dd2c6a03

Aliases

arxiv: 2501.01493 · arxiv_version: 2501.01493v1 · doi: 10.48550/arxiv.2501.01493 · pith_short_12: ZKKK2URFLOLT · pith_short_16: ZKKK2URFLOLT3XHZ · pith_short_8: ZKKK2URF

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/ZKKK2URFLOLT3XHZZ6P7PSHHOZ \
  | 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: ca94ad52255b973ddcf9cf9ff7c8e7764c32133e790c6294b551e9e4dd2c6a03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9c6fe3b2db6dabfff83b097026ba4cd44851428df114b0a5c435e1a7c6edabc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-01-02T19:00:03Z",
    "title_canon_sha256": "5a6853ba7a03dca14a1802c07ae26da6d0ead73adda5c40848e3654a891fd9cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.01493",
    "kind": "arxiv",
    "version": 1
  }
}