Pith Number

pith:DJGIJPRC

pith:2017:DJGIJPRCYLYMJ5MXKQ7SNDUWKK

not attested not anchored not stored refs pending

On packing chromatic number of subcubic outerplanar graphs

Nicolas Gastineau (LAMSADE), Olivier Togni (Le2i), P{\v{r}}emysl Holub

arxiv:1703.05023 v3 · 2017-03-15 · 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{DJGIJPRCYLYMJ5MXKQ7SNDUWKK}

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	2026-05-18T00:09:42.338831Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a4c84be22c2f0c4f597543f268e96529f5bbb8296ccd55e4f78b43760859402

Aliases

arxiv: 1703.05023 · arxiv_version: 1703.05023v3 · doi: 10.48550/arxiv.1703.05023 · pith_short_12: DJGIJPRCYLYM · pith_short_16: DJGIJPRCYLYMJ5MX · pith_short_8: DJGIJPRC

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/DJGIJPRCYLYMJ5MXKQ7SNDUWKK \
  | 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: 1a4c84be22c2f0c4f597543f268e96529f5bbb8296ccd55e4f78b43760859402

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bcb47c6cbf5fe61b571f79b41c851a03b3089f818038a086ef4a756571414893",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2017-03-15T09:06:35Z",
    "title_canon_sha256": "c26ad0502c1496ae448636e623e8a96c12f9e2fe667a2ca0a49e1e3511d508d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.05023",
    "kind": "arxiv",
    "version": 3
  }
}