Pith Number

pith:7LNKURRR

pith:2011:7LNKURRRIIML5YW62MYKC6ODLQ

not attested not anchored not stored refs pending

The Hard X-ray Emission of Cen A

(2) Universite de Toulouse, (3) CAMK Torun, (4) CEA/Saclay), APC, CNRS/IRAP, P. Jean (2), P. Lubinski (3), R. Terrier (1) ((1) Francois Arago Centre, S. Soldi (4), V. Beckmann (1)

arxiv:1104.4253 v2 · 2011-04-21 · astro-ph.CO · 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{7LNKURRRIIML5YW62MYKC6ODLQ}

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	2026-05-18T02:02:16.784918Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fadaaa46314218bee2ded330a179c35c23d2500849c725fb1c35e17a5542be08

Aliases

arxiv: 1104.4253 · arxiv_version: 1104.4253v2 · doi: 10.48550/arxiv.1104.4253 · pith_short_12: 7LNKURRRIIML · pith_short_16: 7LNKURRRIIML5YW6 · pith_short_8: 7LNKURRR

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/7LNKURRRIIML5YW62MYKC6ODLQ \
  | 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: fadaaa46314218bee2ded330a179c35c23d2500849c725fb1c35e17a5542be08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bbd55280a1fa7e9b31c09c459df357f43c21338ace037dfb5f465931601edb1e",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-04-21T13:16:21Z",
    "title_canon_sha256": "401b408e492ae237072bcf8e366e3fb6db38bea42df4ab77c1c68c90700959f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.4253",
    "kind": "arxiv",
    "version": 2
  }
}