Pith Number

pith:CEE23XGL

pith:2014:CEE23XGLR4WRKQVIYKQE4WFEYA

not attested not anchored not stored refs pending

Induced subgraphs of graphs with large chromatic number. I. Odd holes

Alex Scott, Paul Seymour

arxiv:1410.4118 v3 · 2014-10-15 · 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{CEE23XGLR4WRKQVIYKQE4WFEYA}

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	2026-05-18T01:34:35.468503Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1109addccb8f2d1542a8c2a04e58a4c01ba5823d1b3ea34e399bc1372bfbabdf

Aliases

arxiv: 1410.4118 · arxiv_version: 1410.4118v3 · doi: 10.48550/arxiv.1410.4118 · pith_short_12: CEE23XGLR4WR · pith_short_16: CEE23XGLR4WRKQVI · pith_short_8: CEE23XGL

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/CEE23XGLR4WRKQVIYKQE4WFEYA \
  | 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: 1109addccb8f2d1542a8c2a04e58a4c01ba5823d1b3ea34e399bc1372bfbabdf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8407773495e7403056a819933db17a24f87eede60e155be262bf759d12d79a6c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-10-15T16:38:12Z",
    "title_canon_sha256": "7c3182928b5518f2f11a16bbb6a019015dc2ed0b489ee53ba28228cdde4b3e09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.4118",
    "kind": "arxiv",
    "version": 3
  }
}