Pith Number

pith:BW2HJNG4

pith:2024:BW2HJNG4WDGC5OV55Z3YSNQ4SC

not attested not anchored not stored refs pending

On Variation of Light Curves and Broad Emission Lines for Periodic QSOs from co-rotating Supermassive binary black holes in elliptical orbits

Changshuo Yan, Jifeng Liu, Junqiang Ge, Youjun Lu

arxiv:2404.05975 v1 · 2024-04-09 · astro-ph.GA · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BW2HJNG4WDGC5OV55Z3YSNQ4SC}

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	2026-07-05T08:39:20.704242Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0db474b4dcb0cc2ebabdee7789361c90846813d6cfd14b6440e1781dc4f505a4

Aliases

arxiv: 2404.05975 · arxiv_version: 2404.05975v1 · doi: 10.48550/arxiv.2404.05975 · pith_short_12: BW2HJNG4WDGC · pith_short_16: BW2HJNG4WDGC5OV5 · pith_short_8: BW2HJNG4

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/BW2HJNG4WDGC5OV55Z3YSNQ4SC \
  | 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: 0db474b4dcb0cc2ebabdee7789361c90846813d6cfd14b6440e1781dc4f505a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94edb98cee28ebe140ddf8e1f0a0b0c6ccf538a8df6d365b85655ec134be0636",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2024-04-09T03:05:01Z",
    "title_canon_sha256": "576d5369a673608851416ae4a0355f997e695ae884034946220121c2648f5afb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2404.05975",
    "kind": "arxiv",
    "version": 1
  }
}