Pith Number

pith:RCPO2GGI

pith:2013:RCPO2GGIC3M7MSJH3LLSOYNUTH

not attested not anchored not stored refs pending

Strong edge coloring of subcubic bipartite graphs

Borut Lu\v{z}ar, Martina Mockov\v{c}iakov\'a, Riste \v{S}krekovski, Roman Sot\'ak

arxiv:1311.6668 v2 · 2013-11-26 · 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{RCPO2GGIC3M7MSJH3LLSOYNUTH}

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	2026-05-18T03:05:20.024454Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

889eed18c816d9f64927dad72761b499cf22e225d8a9e7109425ec093d0d5fff

Aliases

arxiv: 1311.6668 · arxiv_version: 1311.6668v2 · doi: 10.48550/arxiv.1311.6668 · pith_short_12: RCPO2GGIC3M7 · pith_short_16: RCPO2GGIC3M7MSJH · pith_short_8: RCPO2GGI

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/RCPO2GGIC3M7MSJH3LLSOYNUTH \
  | 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: 889eed18c816d9f64927dad72761b499cf22e225d8a9e7109425ec093d0d5fff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fecfb86c14630d0649d5d819b527a366a9019f54887412e3d7650b8eb5c88083",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-11-26T13:54:22Z",
    "title_canon_sha256": "3c001bd03df9e155a255778470a463e361084c4119813903f78cc1aaf302be75"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.6668",
    "kind": "arxiv",
    "version": 2
  }
}