Pith Number

pith:O7DKY5ZJ

pith:2015:O7DKY5ZJ3VKZAWNCVFUY67ODSP

not attested not anchored not stored refs pending

List colouring with a bounded palette

Marthe Bonamy, Ross J. Kang

arxiv:1507.03495 v2 · 2015-07-13 · 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{O7DKY5ZJ3VKZAWNCVFUY67ODSP}

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	2026-05-18T00:40:08.566930Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77c6ac7729dd559059a2a9698f7dc393ef46ede42419d7b03950e7b3a1d9f4f0

Aliases

arxiv: 1507.03495 · arxiv_version: 1507.03495v2 · doi: 10.48550/arxiv.1507.03495 · pith_short_12: O7DKY5ZJ3VKZ · pith_short_16: O7DKY5ZJ3VKZAWNC · pith_short_8: O7DKY5ZJ

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/O7DKY5ZJ3VKZAWNCVFUY67ODSP \
  | 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: 77c6ac7729dd559059a2a9698f7dc393ef46ede42419d7b03950e7b3a1d9f4f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f39408feed14fd1b36ae0fed0bf93b3cecbc4a668321bbf284ad3874a223e047",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-07-13T15:30:11Z",
    "title_canon_sha256": "bf5aa13e1286049da9503379937f78134866474305991359b8f7cd8ec566f656"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.03495",
    "kind": "arxiv",
    "version": 2
  }
}