Pith Number

pith:D7KJAHJZ

pith:2012:D7KJAHJZTBLI4N7GYD5AX3CYNK

not attested not anchored not stored refs pending

Cosmology Based on f(R) Gravity Admits 1 eV Sterile Neutrinos

Alexei A. Starobinsky, Hayato Motohashi, Jun'ichi Yokoyama

arxiv:1203.6828 v2 · 2012-03-30 · astro-ph.CO · hep-ph · hep-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D7KJAHJZTBLI4N7GYD5AX3CYNK}

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	2026-05-18T03:29:51.197257Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1fd4901d3998568e37e6c0fa0bec586a80f8edd38c4b6a27c813c286c712516d

Aliases

arxiv: 1203.6828 · arxiv_version: 1203.6828v2 · doi: 10.48550/arxiv.1203.6828 · pith_short_12: D7KJAHJZTBLI · pith_short_16: D7KJAHJZTBLI4N7G · pith_short_8: D7KJAHJZ

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/D7KJAHJZTBLI4N7GYD5AX3CYNK \
  | 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: 1fd4901d3998568e37e6c0fa0bec586a80f8edd38c4b6a27c813c286c712516d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1111404351eba05f49d4df3c0edcea7479ae1d80e3cd109b4721a36271206be",
    "cross_cats_sorted": [
      "hep-ph",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-03-30T14:28:13Z",
    "title_canon_sha256": "97522f3e17d27c4e574b958a3684ccdef6835e9f6a4b4eca0e97cfd6b10a2435"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.6828",
    "kind": "arxiv",
    "version": 2
  }
}