Pith Number

pith:467B2SGE

pith:2020:467B2SGEUZ42H5Y73HUCXG2YZV

not attested not anchored not stored refs pending

Black holes and wormholes in $f(R)$ gravity with a kinetic curvature scalar

Igor V. Fomin, J\'ulio C. Fabris, Sergey V. Chervon

arxiv:2008.12143 v2 · 2020-08-25 · 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{467B2SGEUZ42H5Y73HUCXG2YZV}

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

A connection between Gravitational Scalar-Tensor theories and Generalized Hybrid theories

Receipt and verification

First computed	2026-07-05T04:00:48.954054Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e7be1d48c4a679a3f71fd9e82b9b58cd66d8d1c8fae226c54d2b2cf68eea749a

Aliases

arxiv: 2008.12143 · arxiv_version: 2008.12143v2 · doi: 10.48550/arxiv.2008.12143 · pith_short_12: 467B2SGEUZ42 · pith_short_16: 467B2SGEUZ42H5Y7 · pith_short_8: 467B2SGE

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/467B2SGEUZ42H5Y73HUCXG2YZV \
  | 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: e7be1d48c4a679a3f71fd9e82b9b58cd66d8d1c8fae226c54d2b2cf68eea749a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83af33fdc91d90e8777c28c5dc029ce440b5523bcedffaee9377f49fdcf64ba6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2020-08-25T18:40:22Z",
    "title_canon_sha256": "3e13bfb8b58e3db1ec6ceb989179236be8c244a15e17bbd5e6d2f89d064a8245"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.12143",
    "kind": "arxiv",
    "version": 2
  }
}