Pith Number

pith:7IOMJ4RQ

pith:2016:7IOMJ4RQSFIBUUSE4DW3GT36PM

not attested not anchored not stored refs pending

Approximation and Kernelization for Chordal Vertex Deletion

Bart M. P. Jansen, Marcin Pilipczuk

arxiv:1605.03001 v1 · 2016-05-10 · 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{7IOMJ4RQSFIBUUSE4DW3GT36PM}

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	2026-05-18T01:15:07.909446Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa1cc4f23091501a5244e0edb34f7e7b00b0b1e6f22716ea237822328d8afcd1

Aliases

arxiv: 1605.03001 · arxiv_version: 1605.03001v1 · doi: 10.48550/arxiv.1605.03001 · pith_short_12: 7IOMJ4RQSFIB · pith_short_16: 7IOMJ4RQSFIBUUSE · pith_short_8: 7IOMJ4RQ

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/7IOMJ4RQSFIBUUSE4DW3GT36PM \
  | 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: fa1cc4f23091501a5244e0edb34f7e7b00b0b1e6f22716ea237822328d8afcd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7fa5d49437106e6d33d5d22ff10d239ab6b96a612f852c94a7865dbfb4dcbd18",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2016-05-10T13:29:55Z",
    "title_canon_sha256": "8a1509922eae7aa459d3df1b4503cabff889e2ee0b6d1f5c849657e90af9422f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.03001",
    "kind": "arxiv",
    "version": 1
  }
}