Pith Number

pith:SDLB4CWF

pith:2013:SDLB4CWFRBWUVYXJZNQSVAPRYU

not attested not anchored not stored refs pending

An Exact Expression for Photon Polarization in Kerr Geometry

Anusar Farooqui, Niky Kamran, Prakash Panangaden

arxiv:1306.6292 v1 · 2013-06-26 · math-ph · gr-qc · hep-th · 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{SDLB4CWFRBWUVYXJZNQSVAPRYU}

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	2026-05-18T03:19:55.367058Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90d61e0ac5886d4ae2e9cb612a81f1c5261292a0a09eb716741ebb1e16307c65

Aliases

arxiv: 1306.6292 · arxiv_version: 1306.6292v1 · doi: 10.48550/arxiv.1306.6292 · pith_short_12: SDLB4CWFRBWU · pith_short_16: SDLB4CWFRBWUVYXJ · pith_short_8: SDLB4CWF

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/SDLB4CWFRBWUVYXJZNQSVAPRYU \
  | 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: 90d61e0ac5886d4ae2e9cb612a81f1c5261292a0a09eb716741ebb1e16307c65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf7ce176ca9fb66f9268b1824c3b5660f938f799ebef672017173f80c38cae58",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2013-06-26T16:59:11Z",
    "title_canon_sha256": "18c1a22a1ad60aae123c86af3fb1411b917ec856c3ef5a53cfc7d7fad21ce67f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.6292",
    "kind": "arxiv",
    "version": 1
  }
}