Pith Number

pith:4L2QWLWG

pith:2017:4L2QWLWGCNF74Q7Z2HFWWXN5GP

not attested not anchored not stored refs pending

Induced subgraphs of graphs with large chromatic number. VII. Gy\'arf\'as' complementation conjecture

Alex Scott, Paul Seymour

arxiv:1701.06301 v2 · 2017-01-23 · 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{4L2QWLWGCNF74Q7Z2HFWWXN5GP}

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	2026-05-17T23:51:20.184177Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2f50b2ec6134bfe43f9d1cb6b5dbd33c6e890f038e9a1ee3eab0b34dc26dd1b

Aliases

arxiv: 1701.06301 · arxiv_version: 1701.06301v2 · doi: 10.48550/arxiv.1701.06301 · pith_short_12: 4L2QWLWGCNF7 · pith_short_16: 4L2QWLWGCNF74Q7Z · pith_short_8: 4L2QWLWG

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/4L2QWLWGCNF74Q7Z2HFWWXN5GP \
  | 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: e2f50b2ec6134bfe43f9d1cb6b5dbd33c6e890f038e9a1ee3eab0b34dc26dd1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b540e40378ed9ed96bfe9904cdde0ce84b9156bb6a9f1211f7fd65b1e35f1da5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-01-23T09:06:25Z",
    "title_canon_sha256": "57314fdbdf5eb9ccc1ecffd208c1d7718a62bc9dc95741b80f20b496cf9c2d19"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.06301",
    "kind": "arxiv",
    "version": 2
  }
}