pith. sign in
Pith Number

pith:UHSFJJIQ

pith:2012:UHSFJJIQFNEXFNSX7W75HLVHIQ
not attested not anchored not stored refs pending

On the Goldberg-Sachs theorem in higher dimensions in the non-twisting case

Alena Pravdov\'a, Marcello Ortaggio, Vojt\v{e}ch Pravda

arxiv:1211.2660 v1 · 2012-11-12 · gr-qc · hep-th

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{UHSFJJIQFNEXFNSX7W75HLVHIQ}

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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 2026-05-18T03:31:09.129236Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

a1e454a5102b4972b657fdbfd3aea7440acbb37e145782facdcef63a0fcd0169

Aliases

arxiv: 1211.2660 · arxiv_version: 1211.2660v1 · doi: 10.48550/arxiv.1211.2660 · pith_short_12: UHSFJJIQFNEX · pith_short_16: UHSFJJIQFNEXFNSX · pith_short_8: UHSFJJIQ
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/UHSFJJIQFNEXFNSX7W75HLVHIQ \
  | 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: a1e454a5102b4972b657fdbfd3aea7440acbb37e145782facdcef63a0fcd0169
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "300f677827a764baa085e20c147dc03f6233199b3adc46d547d1d3bad179f9de",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-11-12T15:35:18Z",
    "title_canon_sha256": "8841edf0c0dee878722a7ab1d45ab115f91f36aa92dc459148d918c587a34adf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.2660",
    "kind": "arxiv",
    "version": 1
  }
}