Pith Number

pith:PXM37CWQ

pith:2013:PXM37CWQRCHVC7DEPOIWNJPROJ

not attested not anchored not stored refs pending

Sparse Covers for Sums of Indicators

Christos Papadimitriou, Constantinos Daskalakis

arxiv:1306.1265 v3 · 2013-06-05 · stat.CO · 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{PXM37CWQRCHVC7DEPOIWNJPROJ}

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	2026-05-18T02:41:17.214468Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7dd9bf8ad0888f517c647b9166a5f1724503a12cedff174c536b00e5a917d277

Aliases

arxiv: 1306.1265 · arxiv_version: 1306.1265v3 · doi: 10.48550/arxiv.1306.1265 · pith_short_12: PXM37CWQRCHV · pith_short_16: PXM37CWQRCHVC7DE · pith_short_8: PXM37CWQ

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/PXM37CWQRCHVC7DEPOIWNJPROJ \
  | 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: 7dd9bf8ad0888f517c647b9166a5f1724503a12cedff174c536b00e5a917d277

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4f216e37f2f1c3bcc84d78821c1389b64471f7dc4c22b04d49debe72bb3a9e5",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2013-06-05T23:16:31Z",
    "title_canon_sha256": "2f92fe707a1a1cdde28520537d775329df93a265ed1c3fb45e282c8d971c1783"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.1265",
    "kind": "arxiv",
    "version": 3
  }
}