Pith Number

pith:JF7CXUBU

pith:2013:JF7CXUBU3VKGNVOQPDPRQCM2PM

not attested not anchored not stored refs pending

Cosmologically probing ultra-light particle dark matter using 21 cm signals

Joseph Silk, Kenji Kadota, Kiyomoto Ichiki, Yi Mao

arxiv:1312.1898 v3 · 2013-12-06 · hep-ph · 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{JF7CXUBU3VKGNVOQPDPRQCM2PM}

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	2026-05-18T01:45:57.825966Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

497e2bd034dd5466d5d078df18099a7b36ac716799f5faf113559398a5874741

Aliases

arxiv: 1312.1898 · arxiv_version: 1312.1898v3 · doi: 10.48550/arxiv.1312.1898 · pith_short_12: JF7CXUBU3VKG · pith_short_16: JF7CXUBU3VKGNVOQ · pith_short_8: JF7CXUBU

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/JF7CXUBU3VKGNVOQPDPRQCM2PM \
  | 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: 497e2bd034dd5466d5d078df18099a7b36ac716799f5faf113559398a5874741

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b0402d0f11925ca07ce24f76682a99e9413d89b52c22809a01198efd11032d4",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2013-12-06T15:53:18Z",
    "title_canon_sha256": "33c430994a8027e3d62f52c5851fc6632730de15af7edaa4cf76f2b515c362df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.1898",
    "kind": "arxiv",
    "version": 3
  }
}