Pith Number

pith:GWE46JNG

pith:2016:GWE46JNG4IKGILY2FEMHCJGEGJ

not attested not anchored not stored refs pending

Restraints Permitting the Largest Number of Colourings

Aysel Erey, Jason Brown

arxiv:1611.09536 v1 · 2016-11-29 · 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{GWE46JNG4IKGILY2FEMHCJGEGJ}

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	2026-05-18T00:44:51.969714Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3589cf25a6e214642f1a29187124c4326e0d07adfe8a15a7ecff326e50f3a9b3

Aliases

arxiv: 1611.09536 · arxiv_version: 1611.09536v1 · doi: 10.48550/arxiv.1611.09536 · pith_short_12: GWE46JNG4IKG · pith_short_16: GWE46JNG4IKGILY2 · pith_short_8: GWE46JNG

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/GWE46JNG4IKGILY2FEMHCJGEGJ \
  | 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: 3589cf25a6e214642f1a29187124c4326e0d07adfe8a15a7ecff326e50f3a9b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a9b90a44a7eee2c8a16d24bb2cdd0725b27d5cc328a621dd5c1340705246615",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-11-29T09:26:14Z",
    "title_canon_sha256": "c738420e9f396cda7de0454d898ff9d31a459b4c0dd034a03cf3b5e2564896a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.09536",
    "kind": "arxiv",
    "version": 1
  }
}