Pith Number

pith:DS7VIYDH

pith:2018:DS7VIYDHMXQ5PCPREGPYPVN5E2

not attested not anchored not stored refs pending

Square-free graphs with no six-vertex induced path

Frederic Maffray, T. Karthick

arxiv:1805.05007 v2 · 2018-05-14 · cs.DM · math.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DS7VIYDHMXQ5PCPREGPYPVN5E2}

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	2026-05-17T23:57:02.957618Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1cbf54606765e1d789f1219f87d5bd26a6c35abf772a9ccece243881457e6165

Aliases

arxiv: 1805.05007 · arxiv_version: 1805.05007v2 · doi: 10.48550/arxiv.1805.05007 · pith_short_12: DS7VIYDHMXQ5 · pith_short_16: DS7VIYDHMXQ5PCPR · pith_short_8: DS7VIYDH

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/DS7VIYDHMXQ5PCPREGPYPVN5E2 \
  | 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: 1cbf54606765e1d789f1219f87d5bd26a6c35abf772a9ccece243881457e6165

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "275ab493af04485660554afb1dd3603b01a2aa97c1a7b2781c40d6bfacb14fb9",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2018-05-14T04:14:49Z",
    "title_canon_sha256": "31bdc97883df7bc387e6d3aac16b82bedb3b6acf8b4318f23b93363265edeff5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.05007",
    "kind": "arxiv",
    "version": 2
  }
}