Pith Number

pith:MRZ5KAJF

pith:2012:MRZ5KAJFKISHCRPILMYAUJOWVR

not attested not anchored not stored refs pending

Kernel Bounds for Structural Parameterizations of Pathwidth

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

arxiv:1207.4900 v1 · 2012-07-20 · cs.DS · 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{MRZ5KAJFKISHCRPILMYAUJOWVR}

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	2026-05-18T02:21:08.123554Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6473d5012552247145e85b300a25d6ac7588a32ce5c0dcc32aefb4e0e10467c2

Aliases

arxiv: 1207.4900 · arxiv_version: 1207.4900v1 · doi: 10.48550/arxiv.1207.4900 · pith_short_12: MRZ5KAJFKISH · pith_short_16: MRZ5KAJFKISHCRPI · pith_short_8: MRZ5KAJF

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/MRZ5KAJFKISHCRPILMYAUJOWVR \
  | 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: 6473d5012552247145e85b300a25d6ac7588a32ce5c0dcc32aefb4e0e10467c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40a35ef87a80dd07923f9e66c6cd84295cfeb8969bb6abb0099b7cb683486017",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2012-07-20T10:09:36Z",
    "title_canon_sha256": "d58c2455b59aee7422c9a7a8bc479e5c9ee17396c8089ee99e430c8ff5f54747"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.4900",
    "kind": "arxiv",
    "version": 1
  }
}