Pith Number

pith:42QRP5I7

pith:2017:42QRP5I7DUUMR6O2EOBW5W6SPR

not attested not anchored not stored refs pending

Smoothness of the future and past trapped sets in Kerr-Newman-Taub-NUT spacetimes

Claudio F. Paganini, Marius A. Oancea

arxiv:1710.02403 v1 · 2017-10-06 · gr-qc · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{42QRP5I7DUUMR6O2EOBW5W6SPR}

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

Determining parameters of Kerr-Newman black holes by shadow observation from finite distance and spatial infinity

Receipt and verification

First computed	2026-07-05T09:26:52.848542Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6a117f51f1d28c8f9da23836edbd27c6571fbb42fa2a05705f88e85281e77c2

Aliases

arxiv: 1710.02403 · arxiv_version: 1710.02403v1 · doi: 10.48550/arxiv.1710.02403 · pith_short_12: 42QRP5I7DUUM · pith_short_16: 42QRP5I7DUUMR6O2 · pith_short_8: 42QRP5I7

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/42QRP5I7DUUMR6O2EOBW5W6SPR \
  | 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: e6a117f51f1d28c8f9da23836edbd27c6571fbb42fa2a05705f88e85281e77c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91b756d8a40cada7b4ba7a3445914ec81abce704b0bf9ed77bc3bf93ae656eda",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-10-06T13:32:50Z",
    "title_canon_sha256": "a3f7a9bf625009b95212647061de24f2edbb51518612f5ae43252cec742a71f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.02403",
    "kind": "arxiv",
    "version": 1
  }
}