Pith Number

pith:WRKA5XDQ

pith:2013:WRKA5XDQRZLI5YDCNCJ5D7X3L4

not attested not anchored not stored refs pending

No compelling cosmological models come out of magnetic universes which are based in nonlinear electrodynamics

IPN), Israel Quiros (CUCEI, Ricardo Garcia-Salcedo (CICATA-Legaria, Tame Gonzalez (DIC, Universidad de Guadalajara), Universidad de Guanajuato)

arxiv:1312.3163 v2 · 2013-12-11 · gr-qc · 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{WRKA5XDQRZLI5YDCNCJ5D7X3L4}

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	2026-05-18T02:53:40.537816Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4540edc708e568ee0626893d1fefb5f18519711c829619be234390c53c6a5d8

Aliases

arxiv: 1312.3163 · arxiv_version: 1312.3163v2 · doi: 10.48550/arxiv.1312.3163 · pith_short_12: WRKA5XDQRZLI · pith_short_16: WRKA5XDQRZLI5YDC · pith_short_8: WRKA5XDQ

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/WRKA5XDQRZLI5YDCNCJ5D7X3L4 \
  | 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: b4540edc708e568ee0626893d1fefb5f18519711c829619be234390c53c6a5d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92d3f524b21eaa1ce58d743d45c8e470e2cf62d0d17d23237328281dd4040c4c",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-12-11T13:50:01Z",
    "title_canon_sha256": "238d346ac45f550ffaaedd5d36e5effa38b44009c0589e4b65f0d7c9b6f52d16"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.3163",
    "kind": "arxiv",
    "version": 2
  }
}