Pith Number

pith:RVXJZZYY

pith:2025:RVXJZZYY2SOX5RAF4C5OCZ2AW7

not attested not anchored not stored refs pending

The NuSTAR view of five changing-look active galactic nuclei

Bing Lyu, Hao Liu, Qingwen Wu, Wenfei Yu, Xue-Bing Wu, Zhen Yan

arxiv:2501.09602 v1 · 2025-01-16 · 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{RVXJZZYY2SOX5RAF4C5OCZ2AW7}

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	2026-07-05T10:01:49.587620Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8d6e9ce718d49d7ec405e0bae16740b7d51da14855b8ff59182a7ab357b3c2de

Aliases

arxiv: 2501.09602 · arxiv_version: 2501.09602v1 · doi: 10.48550/arxiv.2501.09602 · pith_short_12: RVXJZZYY2SOX · pith_short_16: RVXJZZYY2SOX5RAF · pith_short_8: RVXJZZYY

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/RVXJZZYY2SOX5RAF4C5OCZ2AW7 \
  | 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: 8d6e9ce718d49d7ec405e0bae16740b7d51da14855b8ff59182a7ab357b3c2de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd08685ba5b6ed34e7c32665e615b9369395a53544db09fe126b0caa70a99055",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2025-01-16T15:23:22Z",
    "title_canon_sha256": "fd62624b339363942a030ddd7fa00c0a0256e070a9ef97e9eabe04f46b73f28c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.09602",
    "kind": "arxiv",
    "version": 1
  }
}