Pith Number

pith:DW53YRDC

pith:1999:DW53YRDCUJ6EW34A3J2YYDTIRF

not attested not anchored not stored refs pending

Kretschmann Scalar for a Kerr-Newman Black Hole

Richard C. Henry

arxiv:astro-ph/9912320 v1 · 1999-12-15 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DW53YRDCUJ6EW34A3J2YYDTIRF}

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

Light Deflection due to Spinoptic Effects in Parametrized and Spherically Symmetric Hairy Black Holes

Receipt and verification

First computed	2026-07-04T16:12:01.350142Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1dbbbc4462a27c4b6f80da758c0e68895399677c895ae6957f134434f068f622

Aliases

arxiv: astro-ph/9912320 · arxiv_version: astro-ph/9912320v1 · doi: 10.48550/arxiv.astro-ph/9912320 · pith_short_12: DW53YRDCUJ6E · pith_short_16: DW53YRDCUJ6EW34A · pith_short_8: DW53YRDC

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/DW53YRDCUJ6EW34A3J2YYDTIRF \
  | 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: 1dbbbc4462a27c4b6f80da758c0e68895399677c895ae6957f134434f068f622

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e585d444446f921bd1b362296dd0fce93053e42eb105d1a6181cac5bea7455b7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-12-15T18:14:02Z",
    "title_canon_sha256": "ae0dadeb1d70278207b1f17c7b77b6b22274c27c6a16b1c58cf23e7cf57078a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9912320",
    "kind": "arxiv",
    "version": 1
  }
}