Pith Number

pith:56QRNVSW

pith:2013:56QRNVSWF5CYWDPPDVRPTOWWHS

not attested not anchored not stored refs pending

Dynamical evolution of the electromagnetic perturbation with Weyl corrections

Jiliang Jing, Songbai Chen

arxiv:1307.7459 v2 · 2013-07-29 · gr-qc · 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{56QRNVSWF5CYWDPPDVRPTOWWHS}

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	2026-05-18T01:48:33.585184Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

efa116d6562f458b0def1d62f9bad63c8fcd2b7e99bb9cebfe14958475f3b9f0

Aliases

arxiv: 1307.7459 · arxiv_version: 1307.7459v2 · doi: 10.48550/arxiv.1307.7459 · pith_short_12: 56QRNVSWF5CY · pith_short_16: 56QRNVSWF5CYWDPP · pith_short_8: 56QRNVSW

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/56QRNVSWF5CYWDPPDVRPTOWWHS \
  | 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: efa116d6562f458b0def1d62f9bad63c8fcd2b7e99bb9cebfe14958475f3b9f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55464724f63235522b637b69b60c736216005e5bebfb85cd7c0cae94b05efa35",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-07-29T04:47:53Z",
    "title_canon_sha256": "b5118c57096c2ae9667d33ea78de838c3bb025dacc9d350d9da20a5e17fb6dab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.7459",
    "kind": "arxiv",
    "version": 2
  }
}