Pith Number

pith:56SLQ4OB

pith:2012:56SLQ4OBMSZGTOTFOKDCP6JB2S

not attested not anchored not stored refs pending

Cosmological Ohm's law and dynamics of non-minimal electromagnetism

Federico R. Urban, Lukas Hollenstein, Rajeev Kumar Jain

arxiv:1208.6547 v2 · 2012-08-31 · astro-ph.CO · gr-qc · 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{56SLQ4OBMSZGTOTFOKDCP6JB2S}

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	2026-05-18T03:36:56.397922Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

efa4b871c164b269ba65728627f921d4b8267c338a26220adf6b4fa8164d0e5c

Aliases

arxiv: 1208.6547 · arxiv_version: 1208.6547v2 · doi: 10.48550/arxiv.1208.6547 · pith_short_12: 56SLQ4OBMSZG · pith_short_16: 56SLQ4OBMSZGTOTF · pith_short_8: 56SLQ4OB

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/56SLQ4OBMSZGTOTFOKDCP6JB2S \
  | 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: efa4b871c164b269ba65728627f921d4b8267c338a26220adf6b4fa8164d0e5c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7de26c31640ca2a81f6f0fe1b1027553ce8088a1aece891f0d16f9ea2da6962",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-08-31T16:50:48Z",
    "title_canon_sha256": "fdceba8452b88593d6aad58966284825bf257b90cadddab39f7c86639561f920"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.6547",
    "kind": "arxiv",
    "version": 2
  }
}