Pith Number

pith:5DWOK5SS

pith:2018:5DWOK5SSIAGCDMXH6CDNQBBXP3

not attested not anchored not stored refs pending

Distance-Two Colorings of Barnette Graphs

Carlos Subi, Pavol Hell, Tomas Feder

arxiv:1807.01410 v1 · 2018-07-04 · cs.CG · cs.DM · 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{5DWOK5SSIAGCDMXH6CDNQBBXP3}

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	2026-05-18T00:11:29.723808Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8ece57652400c21b2e7f086d804377efa507427a7a02185d71c75b821f87d8d

Aliases

arxiv: 1807.01410 · arxiv_version: 1807.01410v1 · doi: 10.48550/arxiv.1807.01410 · pith_short_12: 5DWOK5SSIAGC · pith_short_16: 5DWOK5SSIAGCDMXH · pith_short_8: 5DWOK5SS

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/5DWOK5SSIAGCDMXH6CDNQBBXP3 \
  | 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: e8ece57652400c21b2e7f086d804377efa507427a7a02185d71c75b821f87d8d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82a08d9b68aaf8976c147775ebae4712641077c34345bcea2c8c7a4a5145939b",
    "cross_cats_sorted": [
      "cs.DM",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2018-07-04T00:33:52Z",
    "title_canon_sha256": "d49b86739c13d577a52e14d671ad0cde5d42ad0c05f5a2c8e6de58681b2af343"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.01410",
    "kind": "arxiv",
    "version": 1
  }
}