Pith Number

pith:LVB2SK7L

pith:2015:LVB2SK7LHZSDKDIKHKMV2N7BD5

not attested not anchored not stored refs pending

On the Strong Chromatic Index of Sparse Graphs

Bernard Lidicky, Derrick Stolee, Eric Sullivan, Jennifer Diemunsch, Luke L. Nelsen, Michael Ferrara, Nathan Graber, Philip DeOrsey, Sogol Jahanbekam, Stephen G. Hartke

arxiv:1508.03515 v1 · 2015-08-14 · 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{LVB2SK7LHZSDKDIKHKMV2N7BD5}

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	2026-07-05T04:18:59.256681Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5d43a92beb3e64350d0a3a995d37e11f7d0bd485bbfc475f598177850720ba63

Aliases

arxiv: 1508.03515 · arxiv_version: 1508.03515v1 · doi: 10.48550/arxiv.1508.03515 · pith_short_12: LVB2SK7LHZSD · pith_short_16: LVB2SK7LHZSDKDIK · pith_short_8: LVB2SK7L

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/LVB2SK7LHZSDKDIKHKMV2N7BD5 \
  | 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: 5d43a92beb3e64350d0a3a995d37e11f7d0bd485bbfc475f598177850720ba63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "49667cde36ee7ba830daee26546c506d74c6732921daebbd5ffadd78cd14a792",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-08-14T14:36:15Z",
    "title_canon_sha256": "9826add717f0690cff3ebb4ca75b3e8aa77e09982adb57ee38a20063274a9c84"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.03515",
    "kind": "arxiv",
    "version": 1
  }
}