Pith Number

pith:RZQJWCKI

pith:2010:RZQJWCKI4SNIZ7D4J7ESEPD2UG

not attested not anchored not stored refs pending

Approximating Subdense Instances of Covering Problems

Claus Viehmann, Jean Cardinal, Marek Karpinski, Richard Schmied

arxiv:1011.0078 v2 · 2010-10-30 · cs.DS · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RZQJWCKI4SNIZ7D4J7ESEPD2UG}

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	2026-05-18T04:36:48.983556Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e609b0948e49a8cfc7c4fc9223c7aa1ae5e2b4e9cbc7a614be5e59853b29a6c

Aliases

arxiv: 1011.0078 · arxiv_version: 1011.0078v2 · doi: 10.48550/arxiv.1011.0078 · pith_short_12: RZQJWCKI4SNI · pith_short_16: RZQJWCKI4SNIZ7D4 · pith_short_8: RZQJWCKI

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/RZQJWCKI4SNIZ7D4J7ESEPD2UG \
  | 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: 8e609b0948e49a8cfc7c4fc9223c7aa1ae5e2b4e9cbc7a614be5e59853b29a6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec21984d32042636f19c6d86ada7892ac88a4e66ef431f7d6740ca7104e9c9a7",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2010-10-30T15:11:30Z",
    "title_canon_sha256": "b1f1c8c39bde380a37446b6392aa007b29bff986569bce6dcee03e7616698c25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.0078",
    "kind": "arxiv",
    "version": 2
  }
}