Pith Number

pith:VTRFISH2

pith:2025:VTRFISH236U4BWLNJND6UX2KR5

not attested not anchored not stored refs pending

The Parametrised Complexity of Counting Small Sub-Hypergraphs

Holger Dell, Julian Brinkmann, Marco Bressan, Marc Roth, Philip Wellnitz

arxiv:2506.14081 v2 · 2025-06-17 · 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{VTRFISH236U4BWLNJND6UX2KR5}

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	2026-06-09T01:05:07.261799Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ace25448fadfa9c0d96d4b47ea5f4a8f43d68551866c7c2a6193da7143478f4c

Aliases

arxiv: 2506.14081 · arxiv_version: 2506.14081v2 · doi: 10.48550/arxiv.2506.14081 · pith_short_12: VTRFISH236U4 · pith_short_16: VTRFISH236U4BWLN · pith_short_8: VTRFISH2

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/VTRFISH236U4BWLNJND6UX2KR5 \
  | 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: ace25448fadfa9c0d96d4b47ea5f4a8f43d68551866c7c2a6193da7143478f4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ea8b39c6b3a3d6c599329fd7f92b0e76f1cb6d877d0c05f2c30b9593ab5963a",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2025-06-17T00:33:22Z",
    "title_canon_sha256": "f5358d8223839f0e417c251c490e63ac4cc3e70f12ef7106e919a4e84097bd79"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.14081",
    "kind": "arxiv",
    "version": 2
  }
}