Pith Number

pith:6VTOUYUS

pith:2012:6VTOUYUS243GYVWY4F4KD62HG2

not attested not anchored not stored refs pending

The X-ray reflector in NGC 4945: a time and space resolved portrait

A. Marinucci, E. Nardini, G. Fabbiano, G. Matt, G. Risaliti, Junfeng Wang, M. Elvis, S. Bianchi

arxiv:1202.1279 v1 · 2012-02-06 · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6VTOUYUS243GYVWY4F4KD62HG2}

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	2026-05-18T01:58:33.257824Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f566ea6292d7366c56d8e178a1fb4736bfa19c607a8a19f6edc2061214d96569

Aliases

arxiv: 1202.1279 · arxiv_version: 1202.1279v1 · doi: 10.48550/arxiv.1202.1279 · pith_short_12: 6VTOUYUS243G · pith_short_16: 6VTOUYUS243GYVWY · pith_short_8: 6VTOUYUS

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/6VTOUYUS243GYVWY4F4KD62HG2 \
  | 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: f566ea6292d7366c56d8e178a1fb4736bfa19c607a8a19f6edc2061214d96569

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df75c9083571c94cc1aef247847df4de876ada18c24159164791febe794084cd",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-02-06T21:00:01Z",
    "title_canon_sha256": "b7b8ab3d0fb08cfe134afce2b7fee502b746de70b525b2cb777bac3257e8320d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.1279",
    "kind": "arxiv",
    "version": 1
  }
}