Pith Number

pith:6LLDORFO

pith:2014:6LLDORFODYUTX5WUK7NZB35GFI

not attested not anchored not stored refs pending

Induced subgraphs of graphs with large chromatic number. II. Three steps towards Gyarfas' conjectures

Alex Scott, Maria Chudnovsky, Paul Seymour

arxiv:1411.6465 v2 · 2014-11-24 · 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{6LLDORFODYUTX5WUK7NZB35GFI}

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	2026-05-18T01:34:35.384498Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f2d63744ae1e293bf6d457db90efa62a20d4d6cf0985fec96ccddf02224eda69

Aliases

arxiv: 1411.6465 · arxiv_version: 1411.6465v2 · doi: 10.48550/arxiv.1411.6465 · pith_short_12: 6LLDORFODYUT · pith_short_16: 6LLDORFODYUTX5WU · pith_short_8: 6LLDORFO

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/6LLDORFODYUTX5WUK7NZB35GFI \
  | 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: f2d63744ae1e293bf6d457db90efa62a20d4d6cf0985fec96ccddf02224eda69

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a0fb99fe2ddc0d04a4cc3da46d5014498bf21152750c55e921e762f3b2edc2d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-11-24T14:32:58Z",
    "title_canon_sha256": "f082817f4f80926632abe40cdba12508d4449fe422b6129df97af7cccfe080a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.6465",
    "kind": "arxiv",
    "version": 2
  }
}