Pith Number

pith:ZO2JISTP

pith:2022:ZO2JISTPBN2RTXMFMEZQUYPF6K

not attested not anchored not stored refs pending

A multi-epoch X-ray study of the nearby Seyfert 2 galaxy NGC 7479: Linking column density variability to the torus geometry

Andrealuna Pizzetti, Marco Ajello, Nuria Torres-Alba, Ross Silver, Stefano Marchesi, Xiurui Zhao

arxiv:2206.10946 v1 · 2022-06-22 · 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{ZO2JISTPBN2RTXMFMEZQUYPF6K}

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	2026-07-05T04:55:52.968138Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbb4944a6f0b7519dd8561330a61e5f2ad188bf3d543c1784364024f19b29fa4

Aliases

arxiv: 2206.10946 · arxiv_version: 2206.10946v1 · doi: 10.48550/arxiv.2206.10946 · pith_short_12: ZO2JISTPBN2R · pith_short_16: ZO2JISTPBN2RTXMF · pith_short_8: ZO2JISTP

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/ZO2JISTPBN2RTXMFMEZQUYPF6K \
  | 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: cbb4944a6f0b7519dd8561330a61e5f2ad188bf3d543c1784364024f19b29fa4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed01240c07fd4f57c19082f01230cf577c42bd31362eca208415dc3d8c2c65e2",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-06-22T09:41:00Z",
    "title_canon_sha256": "8e16be4da5700ced441ad2b3194257980da31efee218da77e28c47fa2ec4ca7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2206.10946",
    "kind": "arxiv",
    "version": 1
  }
}