Pith Number

pith:22KZCXPP

pith:2013:22KZCXPPQL4QQ53QXFCOQXBVVT

not attested not anchored not stored refs pending

X-ray observations of the Compton-thick Seyfert 2 galaxy, NGC 5643

A. Marinucci, E. Jimenez Bailon, G. Matt, K. Iwawasa, M. Guainazzi, S. Bianchi

arxiv:1307.1591 v1 · 2013-07-05 · 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{22KZCXPPQL4QQ53QXFCOQXBVVT}

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	2026-05-18T01:48:59.457556Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d695915def82f9087770b944e85c35ace6aa06a95c5a89329d63119ceb886d14

Aliases

arxiv: 1307.1591 · arxiv_version: 1307.1591v1 · doi: 10.48550/arxiv.1307.1591 · pith_short_12: 22KZCXPPQL4Q · pith_short_16: 22KZCXPPQL4QQ53Q · pith_short_8: 22KZCXPP

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/22KZCXPPQL4QQ53QXFCOQXBVVT \
  | 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: d695915def82f9087770b944e85c35ace6aa06a95c5a89329d63119ceb886d14

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d35ca78e907ae70d81e2124b862740e199e525b3f9f3787851565c2dff10c90d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-07-05T12:23:24Z",
    "title_canon_sha256": "7f6d88e5898db3dbb551cf6d8a7972738ef03a18e02fea9a36e957c4aa05c561"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.1591",
    "kind": "arxiv",
    "version": 1
  }
}