Pith Number

pith:DCSKF4C5

pith:2015:DCSKF4C5GM4PZ2UN6O5GL6XNH5

not attested not anchored not stored refs pending

On the Approximability of Independent Set Problem on Power Law Graphs

Marek Karpinski, Mathias Hauptmann

arxiv:1503.02880 v1 · 2015-03-10 · cs.DS · cs.DM · math.CO · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DCSKF4C5GM4PZ2UN6O5GL6XNH5}

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	2026-05-18T02:25:12.849134Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18a4a2f05d3338fcea8df3ba65faed3f4867ffe7707e92c61264a4dd63548e2b

Aliases

arxiv: 1503.02880 · arxiv_version: 1503.02880v1 · doi: 10.48550/arxiv.1503.02880 · pith_short_12: DCSKF4C5GM4P · pith_short_16: DCSKF4C5GM4PZ2UN · pith_short_8: DCSKF4C5

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/DCSKF4C5GM4PZ2UN6O5GL6XNH5 \
  | 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: 18a4a2f05d3338fcea8df3ba65faed3f4867ffe7707e92c61264a4dd63548e2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18a58754ba9bcfefde0b1cad2e97c53712d262a6d99d0d0c4afaed8adfa28f30",
    "cross_cats_sorted": [
      "cs.DM",
      "math.CO",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2015-03-10T12:18:44Z",
    "title_canon_sha256": "138120dd34ab537e287d1ae3df1a25aa875d4d9defa840f035a51a74d07c5a3a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.02880",
    "kind": "arxiv",
    "version": 1
  }
}