Pith Number

pith:EQGHEIX3

pith:2009:EQGHEIX3GXII2EYZ22EE6OJPXF

not attested not anchored not stored refs pending

Thresholded Covering Algorithms for Robust and Max-Min Optimization

Anupam Gupta, R. Ravi, Viswanath Nagarajan

arxiv:0912.1045 v3 · 2009-12-05 · 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{EQGHEIX3GXII2EYZ22EE6OJPXF}

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	2026-05-18T04:27:58.263445Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

240c7222fb35d08d1319d6884f392fb968bff44c7ff1c92a5fa78284fcf9e4ad

Aliases

arxiv: 0912.1045 · arxiv_version: 0912.1045v3 · doi: 10.48550/arxiv.0912.1045 · pith_short_12: EQGHEIX3GXII · pith_short_16: EQGHEIX3GXII2EYZ · pith_short_8: EQGHEIX3

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/EQGHEIX3GXII2EYZ22EE6OJPXF \
  | 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: 240c7222fb35d08d1319d6884f392fb968bff44c7ff1c92a5fa78284fcf9e4ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c2c6d703872552f2fdf25feafd6128c3fcca1c77dd99a9e61f17ab9619bf341e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2009-12-05T19:04:49Z",
    "title_canon_sha256": "4fb4c6bca802fbe9df48332ea44ed2887fd3a4990caa5101f54f60112f7ed881"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.1045",
    "kind": "arxiv",
    "version": 3
  }
}