Pith Number

pith:T6TAC3HN

pith:2017:T6TAC3HNWLBVENNC3LRGO52OAE

not attested not anchored not stored refs pending

Smaller parameters for vertex cover kernelization

Eva-Maria C. Hols, Stefan Kratsch

arxiv:1711.04604 v1 · 2017-11-13 · cs.DS · cs.CC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T6TAC3HNWLBVENNC3LRGO52OAE}

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	2026-05-18T00:30:36.180962Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9fa6016cedb2c35235a2dae267774e0113be8ef5ed20eeb600ef702ceb92138a

Aliases

arxiv: 1711.04604 · arxiv_version: 1711.04604v1 · doi: 10.48550/arxiv.1711.04604 · pith_short_12: T6TAC3HNWLBV · pith_short_16: T6TAC3HNWLBVENNC · pith_short_8: T6TAC3HN

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/T6TAC3HNWLBVENNC3LRGO52OAE \
  | 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: 9fa6016cedb2c35235a2dae267774e0113be8ef5ed20eeb600ef702ceb92138a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2bd35ff45ea15f7ab64d949d0d830feaef5021616c48d05853e18deb7f189623",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-11-13T14:48:26Z",
    "title_canon_sha256": "13ce9cb690a17ea772d6524ae94182e4015cb2df54293950bdb96de1e5f66201"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.04604",
    "kind": "arxiv",
    "version": 1
  }
}