Pith Number

pith:3LSGYW5O

pith:2012:3LSGYW5OBMY5V4C5EINESQQOZM

not attested not anchored not stored refs pending

What happens to Petrov classification on horizons of axisymmetric dirty black holes

I. V. Tanatarov, O. B. Zaslavskii

arxiv:1211.4376 v3 · 2012-11-19 · 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{3LSGYW5OBMY5V4C5EINESQQOZM}

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	2026-05-18T02:57:43.757124Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dae46c5bae0b31daf05d221a49420ecb295d976a377f893903d5342db6dbe789

Aliases

arxiv: 1211.4376 · arxiv_version: 1211.4376v3 · doi: 10.48550/arxiv.1211.4376 · pith_short_12: 3LSGYW5OBMY5 · pith_short_16: 3LSGYW5OBMY5V4C5 · pith_short_8: 3LSGYW5O

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/3LSGYW5OBMY5V4C5EINESQQOZM \
  | 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: dae46c5bae0b31daf05d221a49420ecb295d976a377f893903d5342db6dbe789

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8abf9122912469a29adec17a121f053ebda70cc1a6ee82926f256f966332b445",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-11-19T11:58:05Z",
    "title_canon_sha256": "06da407198cee18f0cb0e440fe83bb075f920f8865a9b3ec4798a340869cbbe5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.4376",
    "kind": "arxiv",
    "version": 3
  }
}