Pith Number

pith:VZIS4TS2

pith:2019:VZIS4TS2ZDYVKKVIROQQLXZAQA

not attested not anchored not stored refs pending

An FPT Algorithm for Max-Cut Parameterized by Crossing Number

Shuichi Miyazaki, Suguru Tamaki, Yasuaki Kobayashi, Yusuke Kobayashi

arxiv:1904.05011 v2 · 2019-04-10 · 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{VZIS4TS2ZDYVKKVIROQQLXZAQA}

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	2026-05-17T23:45:14.665190Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae512e4e5ac8f1552aa88ba105df20801ba73237e2e25c403d4c59e367e602f9

Aliases

arxiv: 1904.05011 · arxiv_version: 1904.05011v2 · doi: 10.48550/arxiv.1904.05011 · pith_short_12: VZIS4TS2ZDYV · pith_short_16: VZIS4TS2ZDYVKKVI · pith_short_8: VZIS4TS2

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/VZIS4TS2ZDYVKKVIROQQLXZAQA \
  | 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: ae512e4e5ac8f1552aa88ba105df20801ba73237e2e25c403d4c59e367e602f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9aae8b77659a77587fcb4e3bcaf8d6cf163e5ad24dc8c14582f46c97e292e725",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-04-10T06:06:15Z",
    "title_canon_sha256": "6b9564785d95c0225269d7599a917177e39280114e273c8a16aaf7c953150738"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.05011",
    "kind": "arxiv",
    "version": 2
  }
}