Pith Number

pith:W4SHQSYX

pith:2011:W4SHQSYXOPMIZ6TYBVBJXI24H2

not attested not anchored not stored refs pending

Extragalactic Gamma-ray Background Radiation from Beamed and Unbeamed Active Galactic Nuclei

Yoshiyuki Inoue

arxiv:1108.1438 v1 · 2011-08-06 · 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{W4SHQSYXOPMIZ6TYBVBJXI24H2}

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	2026-05-18T02:01:00.842650Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b724784b1773d88cfa780d429ba35c3eb72c42ea7a0d71233cf447003520a3b1

Aliases

arxiv: 1108.1438 · arxiv_version: 1108.1438v1 · doi: 10.48550/arxiv.1108.1438 · pith_short_12: W4SHQSYXOPMI · pith_short_16: W4SHQSYXOPMIZ6TY · pith_short_8: W4SHQSYX

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/W4SHQSYXOPMIZ6TYBVBJXI24H2 \
  | 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: b724784b1773d88cfa780d429ba35c3eb72c42ea7a0d71233cf447003520a3b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91f7dabf55975e52c12d11260c750819aa968a8bdbc2ec7ae3e83d709c683aaf",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-08-06T01:26:00Z",
    "title_canon_sha256": "954aa8f837397b4700d05bcec526c5450a249f35b5eeffec981e86b0295c3b29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.1438",
    "kind": "arxiv",
    "version": 1
  }
}