Pith Number

pith:I7TBPEUE

pith:2012:I7TBPEUENY5EBPK7RTTZGJ2YVU

not attested not anchored not stored refs pending

Non-existence of multiple-black-hole solutions close to Kerr-Newman

Pin Yu, Willie Wai-Yeung Wong

arxiv:1210.1379 v4 · 2012-10-04 · gr-qc · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I7TBPEUENY5EBPK7RTTZGJ2YVU}

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	2026-05-18T03:01:13.963040Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47e61792846e3a40bd5f8ce7932758ad0f47d98ce922213177e49cf72c048c54

Aliases

arxiv: 1210.1379 · arxiv_version: 1210.1379v4 · doi: 10.48550/arxiv.1210.1379 · pith_short_12: I7TBPEUENY5E · pith_short_16: I7TBPEUENY5EBPK7 · pith_short_8: I7TBPEUE

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/I7TBPEUENY5EBPK7RTTZGJ2YVU \
  | 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: 47e61792846e3a40bd5f8ce7932758ad0f47d98ce922213177e49cf72c048c54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65376b6df91d751b21aa70d06f24390e0d6e91ac93d0c8cb8176449ac3c86c2c",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-10-04T10:55:30Z",
    "title_canon_sha256": "bc478191ba0e5f04187049463837a1b57c3d7983446f9f26f9fe9e60840ba6d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.1379",
    "kind": "arxiv",
    "version": 4
  }
}