Pith Number

pith:IK2Q5VVL

pith:2011:IK2Q5VVLVB6OCGXZAXHNLA4FUG

not attested not anchored not stored refs pending

Conservative upper limits on WIMP annihilation cross section from Fermi-LAT {\gamma}-rays

Fiorenza Donato, Francesca Calore, Valentina De Romeri

arxiv:1105.4230 v3 · 2011-05-21 · 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{IK2Q5VVLVB6OCGXZAXHNLA4FUG}

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	2026-05-18T03:25:46.768462Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42b50ed6aba87ce11af905ced58385a18f389f8ee717b79c7526c70c5da61c4c

Aliases

arxiv: 1105.4230 · arxiv_version: 1105.4230v3 · doi: 10.48550/arxiv.1105.4230 · pith_short_12: IK2Q5VVLVB6O · pith_short_16: IK2Q5VVLVB6OCGXZ · pith_short_8: IK2Q5VVL

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/IK2Q5VVLVB6OCGXZAXHNLA4FUG \
  | 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: 42b50ed6aba87ce11af905ced58385a18f389f8ee717b79c7526c70c5da61c4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c96f75fb4f4eefb67a186d58121eabb5f425c175aca59ecbba316b1a511bf6b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-05-21T08:29:28Z",
    "title_canon_sha256": "921f9b4383638295e66e2882f0dbc2d2afe6845fb8708f06176ac74a03ac06a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.4230",
    "kind": "arxiv",
    "version": 3
  }
}