Pith Number

pith:FIG4LHHR

pith:2018:FIG4LHHR4Q5S65P6OU5UMZITJB

not attested not anchored not stored refs pending

Weighted Upper Edge Cover: Complexity and Approximability

Florian Sikora, Jerome Monnot, Kaveh Khoshkhah, Mehdi Khosravian Ghadikolaei

arxiv:1811.02599 v1 · 2018-11-06 · 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{FIG4LHHR4Q5S65P6OU5UMZITJB}

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	2026-05-18T00:01:21.277726Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a0dc59cf1e43b2f75fe753b466513484b16ed7131fa507fd9c5f8f877e1701b

Aliases

arxiv: 1811.02599 · arxiv_version: 1811.02599v1 · doi: 10.48550/arxiv.1811.02599 · pith_short_12: FIG4LHHR4Q5S · pith_short_16: FIG4LHHR4Q5S65P6 · pith_short_8: FIG4LHHR

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/FIG4LHHR4Q5S65P6OU5UMZITJB \
  | 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: 2a0dc59cf1e43b2f75fe753b466513484b16ed7131fa507fd9c5f8f877e1701b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "576c7e790d2c21a896980fe4eba1f191ec7e05fde7b53d5cbb9b1bcbfd7a0199",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-11-06T19:13:00Z",
    "title_canon_sha256": "a019a5b42ef628c8a7fcfabfb1a57ccba59b3a112511032f5d081b4ded1e4558"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.02599",
    "kind": "arxiv",
    "version": 1
  }
}