Pith Number

pith:VWRT6APE

pith:2019:VWRT6APETK3ZTW33RYPNUP7R7Q

not attested not anchored not stored refs pending

The regular black hole in four dimensional Born-Infeld gravity

Christian G. Boehmer, Franco Fiorini

arxiv:1901.02965 v2 · 2019-01-09 · 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{VWRT6APETK3ZTW33RYPNUP7R7Q}

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	2026-05-17T23:44:47.710742Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ada33f01e49ab799db7b8e1eda3ff1fc2a77c13a1082b1e5bb0e0fe2a325c63d

Aliases

arxiv: 1901.02965 · arxiv_version: 1901.02965v2 · doi: 10.48550/arxiv.1901.02965 · pith_short_12: VWRT6APETK3Z · pith_short_16: VWRT6APETK3ZTW33 · pith_short_8: VWRT6APE

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/VWRT6APETK3ZTW33RYPNUP7R7Q \
  | 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: ada33f01e49ab799db7b8e1eda3ff1fc2a77c13a1082b1e5bb0e0fe2a325c63d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2183d41ec6fc06cf999373fdc5496a038571f5536761e9a34964b0708d70af4c",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-01-09T23:20:36Z",
    "title_canon_sha256": "12b7f97ac3bf1d2a595c3c4614827395878627ca1ce271efb140d79b744323a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.02965",
    "kind": "arxiv",
    "version": 2
  }
}