Pith Number

pith:VGSKRLYC

pith:2013:VGSKRLYCJGM2ORG2GSELM2SH5M

not attested not anchored not stored refs pending

Tackling the soft X-ray excess in AGN with variability studies

Anne M. Lohfink, Christopher S. Reynolds, Michael A. Nowak, Richard F. Mushotzky

arxiv:1301.4997 v2 · 2013-01-21 · astro-ph.HE · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VGSKRLYCJGM2ORG2GSELM2SH5M}

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	2026-05-18T03:35:37.849886Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9a4a8af024999a744da3488b66a47eb2717dc1786b38649a02a560a6b4d749f

Aliases

arxiv: 1301.4997 · arxiv_version: 1301.4997v2 · doi: 10.48550/arxiv.1301.4997 · pith_short_12: VGSKRLYCJGM2 · pith_short_16: VGSKRLYCJGM2ORG2 · pith_short_8: VGSKRLYC

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/VGSKRLYCJGM2ORG2GSELM2SH5M \
  | 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: a9a4a8af024999a744da3488b66a47eb2717dc1786b38649a02a560a6b4d749f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fcc3795baa2a3811d268f131c9dcb871d6df6222c0034a113e9da43ee3e0be7b",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-01-21T21:00:07Z",
    "title_canon_sha256": "23b9ae4bd3ab6141eff4dc53b314c95663750919b3e395134fe41ea3e7526c89"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.4997",
    "kind": "arxiv",
    "version": 2
  }
}