Pith Number

pith:F5JM33HW

pith:1999:F5JM33HWZKPHU52WZPC7CKB26N

not attested not anchored not stored refs pending

A Twisting Electrovac Solution of Type II with the Cosmological Constant

J.K. Kowalczynski (Institute of Physics, Polish Academy of Sciences)

arxiv:gr-qc/9909003 v2 · 1999-09-01 · 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{F5JM33HWZKPHU52WZPC7CKB26N}

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	2026-05-18T01:39:17.828130Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f52cdecf6ca9e7a7756cbc5f1283af376a247757fe0fcd6815bc862060531b9

Aliases

arxiv: gr-qc/9909003 · arxiv_version: gr-qc/9909003v2 · doi: 10.48550/arxiv.gr-qc/9909003 · pith_short_12: F5JM33HWZKPH · pith_short_16: F5JM33HWZKPHU52W · pith_short_8: F5JM33HW

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/F5JM33HWZKPHU52WZPC7CKB26N \
  | 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: 2f52cdecf6ca9e7a7756cbc5f1283af376a247757fe0fcd6815bc862060531b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37f695a7f1029b5bc30afe79b87a833c43d11c4a408017133a7f731350d090a8",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1999-09-01T14:14:27Z",
    "title_canon_sha256": "c027e8a536d0d23086918c17e53edcdf967221ba6f8fedaae311236156fbaba6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9909003",
    "kind": "arxiv",
    "version": 2
  }
}