Pith Number

pith:XDA6EKMY

pith:2012:XDA6EKMYHHYJQLLVKCGPBJDHGC

not attested not anchored not stored refs pending

Kernelization Lower Bounds By Cross-Composition

Bart M. P. Jansen, Hans L. Bodlaender, Stefan Kratsch

arxiv:1206.5941 v1 · 2012-06-26 · cs.CC · 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{XDA6EKMYHHYJQLLVKCGPBJDHGC}

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	2026-05-18T02:21:08.750953Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8c1e2299839f0982d75508cf0a467308d6e61dcb2ab07dec9984b1adaac0fe0

Aliases

arxiv: 1206.5941 · arxiv_version: 1206.5941v1 · doi: 10.48550/arxiv.1206.5941 · pith_short_12: XDA6EKMYHHYJ · pith_short_16: XDA6EKMYHHYJQLLV · pith_short_8: XDA6EKMY

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/XDA6EKMYHHYJQLLVKCGPBJDHGC \
  | 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: b8c1e2299839f0982d75508cf0a467308d6e61dcb2ab07dec9984b1adaac0fe0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4c5aae65a479f9dee169d5293da0ff6de15f938abd4be26dc2fd4c354a9962e",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2012-06-26T10:06:37Z",
    "title_canon_sha256": "78bdd62dc74d0a67ba5af9bd4ad01b5471b7c1f81561fcd479f4bce1316edb71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.5941",
    "kind": "arxiv",
    "version": 1
  }
}