Pith Number

pith:55EXPNAC

pith:2023:55EXPNACLANQ7V72MMPOBKLLKH

not attested not anchored not stored refs pending

Double Kerr-Schild spacetimes and the Newman-Penrose map

Gabriel Herczeg, Kara Farnsworth, Michael Graesser

arxiv:2306.16445 v3 · 2023-06-28 · hep-th · gr-qc · hep-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{55EXPNACLANQ7V72MMPOBKLLKH}

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

3 papers in Pith

Non-topological solitons in biadjoint scalar field theory

Hawking Radiation meets the Double Copy

The Penrose Transform and the Kerr-Schild double copy

Receipt and verification

First computed	2026-07-05T06:51:48.654777Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef4977b402581b0fd7fa631ee0a96b51ce041282525a514ea25c49008432b3e5

Aliases

arxiv: 2306.16445 · arxiv_version: 2306.16445v3 · doi: 10.48550/arxiv.2306.16445 · pith_short_12: 55EXPNACLANQ · pith_short_16: 55EXPNACLANQ7V72 · pith_short_8: 55EXPNAC

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/55EXPNACLANQ7V72MMPOBKLLKH \
  | 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: ef4977b402581b0fd7fa631ee0a96b51ce041282525a514ea25c49008432b3e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7888438344f20a0994c23cfdd66945c1686eadd86a0dc613187fbe2a1a5738fe",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2023-06-28T18:00:01Z",
    "title_canon_sha256": "3684fbd946790681ff3790593ef7828d291cda41754084fab34a5b4c0e54b89f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2306.16445",
    "kind": "arxiv",
    "version": 3
  }
}