Pith Number

pith:KLXBO7M2

pith:2024:KLXBO7M2DUAUYUDM6VBW7YIXTG

not attested not anchored not stored refs pending

Static and spherically symmetric vacuum spacetimes with non-expanding principal null directions in $f(R)$ gravity

Alberto Guilabert, Pedro Bargue\~no, Pelayo V. Calzada, Salvador Miret-Art\'es

arxiv:2407.13262 v1 · 2024-07-18 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KLXBO7M2DUAUYUDM6VBW7YIXTG}

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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.

Cited by

1 paper in Pith

Static spherically symmetric Kundt vacuum solutions of higher-derivative gravities

Receipt and verification

First computed	2026-07-05T08:45:36.779298Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

52ee177d9a1d014c506cf5436fe1179999beb1b4bf22041e29983b35bc96bfca

Aliases

arxiv: 2407.13262 · arxiv_version: 2407.13262v1 · doi: 10.48550/arxiv.2407.13262 · pith_short_12: KLXBO7M2DUAU · pith_short_16: KLXBO7M2DUAUYUDM · pith_short_8: KLXBO7M2

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/KLXBO7M2DUAUYUDM6VBW7YIXTG \
  | 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: 52ee177d9a1d014c506cf5436fe1179999beb1b4bf22041e29983b35bc96bfca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b1ab119f91c6d1cbf711c7a6b74e723e0f687ae24cf5b7f84ae2c84a5c3e5a4",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2024-07-18T08:13:17Z",
    "title_canon_sha256": "a34ab60ae2df4089db7854609393af844b91dbcfa2100301e0cb3a2157f117ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2407.13262",
    "kind": "arxiv",
    "version": 1
  }
}