Pith Number

pith:H2O35G6Z

pith:2015:H2O35G6ZRMSFXMMCUSBVLD2OHP

not attested not anchored not stored refs pending

A 7/3-Approximation for Feedback Vertex Sets in Tournaments

L\'aszl\'o A. V\'egh, Matthias Mnich, Virginia Vassilevska Williams

arxiv:1511.01137 v1 · 2015-11-03 · 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{H2O35G6ZRMSFXMMCUSBVLD2OHP}

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	2026-05-18T01:27:47.985844Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e9dbe9bd98b245bb182a483558f4e3bcffa5b30d68fc5396d610ba8ca650483

Aliases

arxiv: 1511.01137 · arxiv_version: 1511.01137v1 · doi: 10.48550/arxiv.1511.01137 · pith_short_12: H2O35G6ZRMSF · pith_short_16: H2O35G6ZRMSFXMMC · pith_short_8: H2O35G6Z

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/H2O35G6ZRMSFXMMCUSBVLD2OHP \
  | 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: 3e9dbe9bd98b245bb182a483558f4e3bcffa5b30d68fc5396d610ba8ca650483

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79e1a53fefe4b0179a792eaf5563d77f0f7bf7895e4b44dc9758cf64e0011455",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2015-11-03T22:09:46Z",
    "title_canon_sha256": "c359c5df42675f2b6ff1f784559122c8322477e216a9fb15dcc4154cbaf8ff40"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.01137",
    "kind": "arxiv",
    "version": 1
  }
}