Pith Number

pith:RNK7L2E6

pith:2017:RNK7L2E6UGAWR6O6X6YIEGE5WO

not attested not anchored not stored refs pending

Relaxation heuristics for the set multicover problem with generalized upper bound constraints

Masanao Arakawa, Mutsunori Yagiura, Shunji Umetani

arxiv:1705.04970 v2 · 2017-05-14 · cs.DS · cs.AI · 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{RNK7L2E6UGAWR6O6X6YIEGE5WO}

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	2026-05-18T00:26:37.040488Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b55f5e89ea18168f9debfb082189db3983311281ddb606a4a0553ea8276832c

Aliases

arxiv: 1705.04970 · arxiv_version: 1705.04970v2 · doi: 10.48550/arxiv.1705.04970 · pith_short_12: RNK7L2E6UGAW · pith_short_16: RNK7L2E6UGAWR6O6 · pith_short_8: RNK7L2E6

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/RNK7L2E6UGAWR6O6X6YIEGE5WO \
  | 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: 8b55f5e89ea18168f9debfb082189db3983311281ddb606a4a0553ea8276832c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5fa955ffcd1913ee294ca1807f223d33b31e07bbab0dba413fc8efedee163c4b",
    "cross_cats_sorted": [
      "cs.AI",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-05-14T14:35:54Z",
    "title_canon_sha256": "6c607828cb26dae41a623402fa9a307c6bec092414fcde3ae2a751d88ec539e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.04970",
    "kind": "arxiv",
    "version": 2
  }
}