Pith Number

pith:KEKQM3WU

pith:2011:KEKQM3WUAWUJWNUBIGAWPVQZ4C

not attested not anchored not stored refs pending

Approximating Non-Uniform Sparsest Cut via Generalized Spectra

Ali Kemal Sinop, Venkatesan Guruswami

arxiv:1112.4109 v4 · 2011-12-18 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KEKQM3WUAWUJWNUBIGAWPVQZ4C}

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	2026-05-18T02:21:27.139477Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5115066ed405a89b3681418167d619e0bd3517c651abee073ea051ed3f2d2e41

Aliases

arxiv: 1112.4109 · arxiv_version: 1112.4109v4 · doi: 10.48550/arxiv.1112.4109 · pith_short_12: KEKQM3WUAWUJ · pith_short_16: KEKQM3WUAWUJWNUB · pith_short_8: KEKQM3WU

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/KEKQM3WUAWUJWNUBIGAWPVQZ4C \
  | 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: 5115066ed405a89b3681418167d619e0bd3517c651abee073ea051ed3f2d2e41

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4e1e24e983d85ebf28590e40f50a38e9bdbd3ee172289b9a9ba7d7feb4236f9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2011-12-18T02:41:12Z",
    "title_canon_sha256": "1d85e41a1a4167ec86c2d6eaa302c85b06a715e55e8c89ff4444930841b69513"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.4109",
    "kind": "arxiv",
    "version": 4
  }
}