Pith Number

pith:663WRABV

pith:2013:663WRABV6A36BQTFVGTQ73ACEU

not attested not anchored not stored refs pending

Annihilation of singlet fermionic dark matter into two photons

Mohammad Mahdi Ettefaghi, Reza Moazzemi

arxiv:1301.4892 v1 · 2013-01-21 · hep-ph · 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{663WRABV6A36BQTFVGTQ73ACEU}

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	2026-05-18T03:28:42.056400Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7b7688035f037e0c265a9a70fec02252bf5d66e79d985fef79259b154ed848d

Aliases

arxiv: 1301.4892 · arxiv_version: 1301.4892v1 · doi: 10.48550/arxiv.1301.4892 · pith_short_12: 663WRABV6A36 · pith_short_16: 663WRABV6A36BQTF · pith_short_8: 663WRABV

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/663WRABV6A36BQTFVGTQ73ACEU \
  | 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: f7b7688035f037e0c265a9a70fec02252bf5d66e79d985fef79259b154ed848d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f68401da10ef4cda42e7e4470c4de5ce85f26a53a30bc35ca6338e3068378d5",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2013-01-21T15:27:24Z",
    "title_canon_sha256": "fb1287ae49dd36158be9017dd8a44d3c806c793244bb7357d9fb1e14d5f775fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.4892",
    "kind": "arxiv",
    "version": 1
  }
}