Pith Number

pith:2NJSHFDU

pith:2013:2NJSHFDUJ5GAKEZ3QU6DNMBCWW

not attested not anchored not stored refs pending

Lower Limits on the Anisotropy of the Extragalactic Gamma-Ray Background implied by the 2FGL and 1FHL Catalogs

2), (2) University of Waterloo, (3) Heidelberg Institute for Theoretical Studies, (4) University of Wisconsin-Milwaukee), Avery E. Broderick (1, Christoph Pfrommer (3), Ewald Puchwein (3), Kendrick M. Smith (1) ((1) Perimeter Institute for Theoretical Physics, Philip Chang (4)

arxiv:1308.0015 v2 · 2013-07-31 · 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{2NJSHFDUJ5GAKEZ3QU6DNMBCWW}

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	2026-05-18T00:22:16.676612Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3532394744f4c05133b853c36b022b58ad21d7389dd9a6fdc72c51ce42ce186

Aliases

arxiv: 1308.0015 · arxiv_version: 1308.0015v2 · doi: 10.48550/arxiv.1308.0015 · pith_short_12: 2NJSHFDUJ5GA · pith_short_16: 2NJSHFDUJ5GAKEZ3 · pith_short_8: 2NJSHFDU

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/2NJSHFDUJ5GAKEZ3QU6DNMBCWW \
  | 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: d3532394744f4c05133b853c36b022b58ad21d7389dd9a6fdc72c51ce42ce186

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57494d1fcc783a83bbd3fe2ebbcac76f302640c513b636150d9e49e5c2901080",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-07-31T20:00:08Z",
    "title_canon_sha256": "34a2468232d5d1aa2e467eca594960a20b042a4005cd4df1f5046bcec4b812e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.0015",
    "kind": "arxiv",
    "version": 2
  }
}