Pith Number

pith:MZRZRZ7O

pith:2019:MZRZRZ7OLH6ZAVPIIQY2TSJRUO

not attested not anchored not stored refs pending

On the properties of a Static and a Stationary Charged Black Hole in $f(R)$ Gravity

Carlos Conde, Cristian Galvis, Eduard Larra\~naga

arxiv:1907.01050 v2 · 2019-07-01 · 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{MZRZRZ7OLH6ZAVPIIQY2TSJRUO}

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.

Receipt and verification

First computed	2026-07-05T01:38:33.069563Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

666398e7ee59fd9055e84431a9c931a38da42be480e8f54242d4cf4b558e0e1b

Aliases

arxiv: 1907.01050 · arxiv_version: 1907.01050v2 · doi: 10.48550/arxiv.1907.01050 · pith_short_12: MZRZRZ7OLH6Z · pith_short_16: MZRZRZ7OLH6ZAVPI · pith_short_8: MZRZRZ7O

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/MZRZRZ7OLH6ZAVPIIQY2TSJRUO \
  | 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: 666398e7ee59fd9055e84431a9c931a38da42be480e8f54242d4cf4b558e0e1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3904b48dc28e2c0630fa9d23cc8c0a9eae862d6e9b973fba861bd7230afb852",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-07-01T20:15:21Z",
    "title_canon_sha256": "ca8631a35a4f4a1261004d33a1fb0754c8da13dace3736a284e91646aedb70ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.01050",
    "kind": "arxiv",
    "version": 2
  }
}