Pith Number

pith:GWG2ZDNN

pith:2011:GWG2ZDNNRUXXGWCTX6FWUPDGJK

not attested not anchored not stored refs pending

Greedy Set Cover Estimations

Hakob Aslanyan

arxiv:1107.4224 v1 · 2011-07-21 · 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{GWG2ZDNNRUXXGWCTX6FWUPDGJK}

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	2026-05-18T04:17:12.940452Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

358dac8dad8d2f735853bf8b6a3c664a8dc005c8c71232eec09ebfef6cd823be

Aliases

arxiv: 1107.4224 · arxiv_version: 1107.4224v1 · doi: 10.48550/arxiv.1107.4224 · pith_short_12: GWG2ZDNNRUXX · pith_short_16: GWG2ZDNNRUXXGWCT · pith_short_8: GWG2ZDNN

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/GWG2ZDNNRUXXGWCTX6FWUPDGJK \
  | 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: 358dac8dad8d2f735853bf8b6a3c664a8dc005c8c71232eec09ebfef6cd823be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a3f666227e0b6ae7c0b0dfc3e40dfe20b3160a52b69403ecac5dd54e4545c30b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2011-07-21T10:13:26Z",
    "title_canon_sha256": "4ca9c711e7e34dc0bb22c7ea1ec28e228d591b402410d17ab72b93a459c4832d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.4224",
    "kind": "arxiv",
    "version": 1
  }
}