Pith Number

pith:KVGQ7C5W

pith:2017:KVGQ7C5WXO3KF7B3VOVUU2UWNK

not attested not anchored not stored refs pending

Revisiting Connected Vertex Cover: FPT Algorithms and Lossy Kernels

Diptapriyo Majumdar, R. Krithika, Venkatesh Raman

arxiv:1711.07872 v1 · 2017-11-21 · 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{KVGQ7C5WXO3KF7B3VOVUU2UWNK}

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	2026-05-18T00:04:05.026814Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

554d0f8bb6bbb6a2fc3babab4a6a966a8b7c24e819dbc93e42346b0790f8eb86

Aliases

arxiv: 1711.07872 · arxiv_version: 1711.07872v1 · doi: 10.48550/arxiv.1711.07872 · pith_short_12: KVGQ7C5WXO3K · pith_short_16: KVGQ7C5WXO3KF7B3 · pith_short_8: KVGQ7C5W

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/KVGQ7C5WXO3KF7B3VOVUU2UWNK \
  | 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: 554d0f8bb6bbb6a2fc3babab4a6a966a8b7c24e819dbc93e42346b0790f8eb86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0c20660ae91781015068ce0e0935897eacc403d2bd7c8f5ffb913e4b5294724",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-11-21T16:17:26Z",
    "title_canon_sha256": "bb58effe6348651bb369671409b329d6881c9ccf545b6e4118042db929e274cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.07872",
    "kind": "arxiv",
    "version": 1
  }
}