Pith Number

pith:HRHDLXRE

pith:2012:HRHDLXREI6WPPLP6IVOS45Y7BL

not attested not anchored not stored refs pending

AGN emission processes of NGC 4945 in the X-rays and gamma-rays

Fabio Mattana, Marie-Luise Menzel, Volker Beckmann

arxiv:1201.1088 v1 · 2012-01-05 · 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{HRHDLXREI6WPPLP6IVOS45Y7BL}

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	2026-05-18T04:05:06.218300Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c4e35de2447acf7adfe455d2e771f0ae5efd007af5de19f1421c16818749ab3

Aliases

arxiv: 1201.1088 · arxiv_version: 1201.1088v1 · doi: 10.48550/arxiv.1201.1088 · pith_short_12: HRHDLXREI6WP · pith_short_16: HRHDLXREI6WPPLP6 · pith_short_8: HRHDLXRE

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/HRHDLXREI6WPPLP6IVOS45Y7BL \
  | 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: 3c4e35de2447acf7adfe455d2e771f0ae5efd007af5de19f1421c16818749ab3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4de60ceb04c6d7c1063b4537c0c1200b3575900ffafbd31b5fad70a35c8910b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-01-05T09:13:52Z",
    "title_canon_sha256": "2f430c0a4257d1f60c8ddd7ae5a511ebd822ad5417a0681e19bdacdcbda1b306"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.1088",
    "kind": "arxiv",
    "version": 1
  }
}