Pith Number

pith:SP3PF7JP

pith:2014:SP3PF7JPS4KHK6ZUHHFY7JTL5X

not attested not anchored not stored refs pending

Extended Kerr-Schild spacetimes: General properties and some explicit examples

Tom\'a\v{s} M\'alek

arxiv:1401.1060 v2 · 2014-01-06 · 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{SP3PF7JPS4KHK6ZUHHFY7JTL5X}

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.

Cited by

1 paper in Pith

Extremal Kerr-Schild Form

Receipt and verification

First computed	2026-05-18T02:38:37.273604Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93f6f2fd2f9714757b3439cb8fa66bedfa402534c73a89bceb13d670c5a3a5a0

Aliases

arxiv: 1401.1060 · arxiv_version: 1401.1060v2 · doi: 10.48550/arxiv.1401.1060 · pith_short_12: SP3PF7JPS4KH · pith_short_16: SP3PF7JPS4KHK6ZU · pith_short_8: SP3PF7JP

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/SP3PF7JPS4KHK6ZUHHFY7JTL5X \
  | 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: 93f6f2fd2f9714757b3439cb8fa66bedfa402534c73a89bceb13d670c5a3a5a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "675a520a5fca9adb8493278236086d514a11ac648f31c1996942e08b640ddfc6",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2014-01-06T12:36:29Z",
    "title_canon_sha256": "540f788648387678f482735ccd2f80694e6b036405ef4bcea517cb4923914d54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.1060",
    "kind": "arxiv",
    "version": 2
  }
}