Pith Number

pith:LTDJTTSK

pith:2016:LTDJTTSKZID3QVZT3KSRGCNN6C

not attested not anchored not stored refs pending

Diminishable Parameterized Problems and Strict Polynomial Kernelization

Andreas Krebs, Danny Hermelin, Hendrik Molter, Henning Fernau, Rolf Niedermeier, Till Fluschnik

arxiv:1611.03739 v3 · 2016-11-11 · 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{LTDJTTSKZID3QVZT3KSRGCNN6C}

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	2026-05-18T00:36:43.673483Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5cc699ce4aca07b85733daa51309adf09c253cf793a41fed171924d767012ca4

Aliases

arxiv: 1611.03739 · arxiv_version: 1611.03739v3 · doi: 10.48550/arxiv.1611.03739 · pith_short_12: LTDJTTSKZID3 · pith_short_16: LTDJTTSKZID3QVZT · pith_short_8: LTDJTTSK

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/LTDJTTSKZID3QVZT3KSRGCNN6C \
  | 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: 5cc699ce4aca07b85733daa51309adf09c253cf793a41fed171924d767012ca4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f214ba23c696ecfea5f4e003a0afb3e681e41f1e726c83960e8e565c3ebfd0a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2016-11-11T15:17:01Z",
    "title_canon_sha256": "f78441fa9df0bf2fd5554de89e952e3c7be6eebaa28d0024555066968e05dc98"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.03739",
    "kind": "arxiv",
    "version": 3
  }
}