Pith Number

pith:AAH2DWAN

pith:2001:AAH2DWANOLWK433EU5QY7QBUIV

not attested not anchored not stored refs pending

Variability of Soft X-ray Spectral Shape: Narrow-Line Seyfert 1 Galaxies versus Broad-Line Seyfert 1 Galaxies

CAS), Jianyan Wei, Linpeng Cheng, Yongheng Zhao (NAOC

arxiv:astro-ph/0110569 v1 · 2001-10-26 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AAH2DWANOLWK433EU5QY7QBUIV}

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	2026-05-18T00:31:36.788857Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

000fa1d80d72ecae6f64a7618fc0344576de3d020c55f326d241a624fd43150e

Aliases

arxiv: astro-ph/0110569 · arxiv_version: astro-ph/0110569v1 · doi: 10.48550/arxiv.astro-ph/0110569 · pith_short_12: AAH2DWANOLWK · pith_short_16: AAH2DWANOLWK433E · pith_short_8: AAH2DWAN

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/AAH2DWANOLWK433EU5QY7QBUIV \
  | 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: 000fa1d80d72ecae6f64a7618fc0344576de3d020c55f326d241a624fd43150e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "408e4fa44ad03c2bd475d599819753a3a233e9b2ea65cc20184db4d354ad674e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-10-26T05:42:00Z",
    "title_canon_sha256": "c34c930dd178ed28bb170d9a4a480570c1c423abbc302df8c2cdb20031be420b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0110569",
    "kind": "arxiv",
    "version": 1
  }
}