pith. sign in
Pith Number

pith:X2JCSRMC

pith:2012:X2JCSRMCPCAGBHYY7EJ2EFXQ2J
not attested not anchored not stored refs pending

Gravito-electromagnetic analogies

Jos\'e Nat\'ario, L. Filipe O. Costa

arxiv:1207.0465 v3 · 2012-07-02 · gr-qc · hep-th · math-ph · math.MP

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{X2JCSRMCPCAGBHYY7EJ2EFXQ2J}

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 2026-05-18T02:39:24.344813Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

be922945827880609f18f913a216f0d278b81404e66a7226baaae1e37fa1f27b

Aliases

arxiv: 1207.0465 · arxiv_version: 1207.0465v3 · doi: 10.48550/arxiv.1207.0465 · pith_short_12: X2JCSRMCPCAG · pith_short_16: X2JCSRMCPCAGBHYY · pith_short_8: X2JCSRMC
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/X2JCSRMCPCAGBHYY7EJ2EFXQ2J \
  | 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: be922945827880609f18f913a216f0d278b81404e66a7226baaae1e37fa1f27b
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "5441f201fbdc50e285a38db7fed963cd6f46813686795b9856fa9ab8d063986e",
    "cross_cats_sorted": [
      "hep-th",
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-07-02T18:45:38Z",
    "title_canon_sha256": "386f9c5a4395a3a5ad9eefc30295e0417ec248fbf07d887ac1ff041aafac30e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.0465",
    "kind": "arxiv",
    "version": 3
  }
}