Pith Number

pith:KLH5M7NE

pith:2016:KLH5M7NEQLF5OSB37HB5B7Y46C

not attested not anchored not stored refs pending

Vertex Colorings without Rainbow or Monochromatic Subgraphs

Honghai Xu, Wayne Goddard

arxiv:1601.06920 v1 · 2016-01-26 · 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{KLH5M7NEQLF5OSB37HB5B7Y46C}

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	2026-05-18T01:21:59.525922Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

52cfd67da482cbd7483bf9c3d0ff1cf095cbdf4818dfb7081b6f382e14538f77

Aliases

arxiv: 1601.06920 · arxiv_version: 1601.06920v1 · doi: 10.48550/arxiv.1601.06920 · pith_short_12: KLH5M7NEQLF5 · pith_short_16: KLH5M7NEQLF5OSB3 · pith_short_8: KLH5M7NE

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/KLH5M7NEQLF5OSB37HB5B7Y46C \
  | 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: 52cfd67da482cbd7483bf9c3d0ff1cf095cbdf4818dfb7081b6f382e14538f77

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "390f962f41911fdd6dc14ee9cb2cfbb3b92a0db39ea6897df71401d0a736a461",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-01-26T08:28:31Z",
    "title_canon_sha256": "31a26235bf589edb1111c495870d61cacc4264f81e03f8fd20288df37b05b900"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.06920",
    "kind": "arxiv",
    "version": 1
  }
}