Pith Number

pith:EMB7META

pith:2025:EMB7METAVEMZIC4Z7JXIKCUTB2

not attested not anchored not stored refs pending

The Parameterized Complexity of Computing the Linear Vertex Arboricity

Alexander Erhardt, Alexander Wolff

arxiv:2505.18885 v1 · 2025-05-24 · 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{EMB7METAVEMZIC4Z7JXIKCUTB2}

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	2026-07-05T11:09:21.233262Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2303f61260a919940b99fa6e850a930eb341e6b67170cc996906fba86df71738

Aliases

arxiv: 2505.18885 · arxiv_version: 2505.18885v1 · doi: 10.48550/arxiv.2505.18885 · pith_short_12: EMB7METAVEMZ · pith_short_16: EMB7METAVEMZIC4Z · pith_short_8: EMB7META

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/EMB7METAVEMZIC4Z7JXIKCUTB2 \
  | 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: 2303f61260a919940b99fa6e850a930eb341e6b67170cc996906fba86df71738

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "01dcc1bc44b8c81733c8b193fb6a44a8f94b8135854a29dd61b208eacae8a36d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2025-05-24T21:55:22Z",
    "title_canon_sha256": "ce0c4cf4401bf365605b010687bb5d9495faaf40cbaea9761ee9a5bbe456d79a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.18885",
    "kind": "arxiv",
    "version": 1
  }
}