Pith Number

pith:J23UCNBM

pith:2013:J23UCNBMYWOERNDHVIZ4WSFR7J

not attested not anchored not stored refs pending

Threshold-Coloring and Unit-Cube Contact Representation of Graphs

Ga\v{s}per Fijav\v{z}, Md. Jawaherul Alam, Michael Kaufmann, Sergey Pupyrev, Stephen G. Kobourov, Steven Chaplick

arxiv:1302.6183 v5 · 2013-02-25 · 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{J23UCNBMYWOERNDHVIZ4WSFR7J}

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	2026-05-18T03:25:27.001421Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4eb741342cc59c48b467aa33cb48b1fa7e0e6eab84c7ce25bb2b2e5f13e8318d

Aliases

arxiv: 1302.6183 · arxiv_version: 1302.6183v5 · doi: 10.48550/arxiv.1302.6183 · pith_short_12: J23UCNBMYWOE · pith_short_16: J23UCNBMYWOERNDH · pith_short_8: J23UCNBM

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/J23UCNBMYWOERNDHVIZ4WSFR7J \
  | 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: 4eb741342cc59c48b467aa33cb48b1fa7e0e6eab84c7ce25bb2b2e5f13e8318d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b02e1465aa5d359faac7cb9b50b0b796bd8fb6c0efb4e270474f39bc2d4eeb10",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2013-02-25T18:29:39Z",
    "title_canon_sha256": "7662149cb02525f6626a9b8be29c05ae83ecad518311c4d34548590ba8471437"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.6183",
    "kind": "arxiv",
    "version": 5
  }
}