Pith Number

pith:CEMGE73I

pith:2010:CEMGE73IXVQB2BXWHCER4C7SSX

not attested not anchored not stored refs pending

Locally identifying coloring of graphs

Aline Parreau (IF), Louis Esperet (G-SCOP), Mickael Montassier (LaBRI), Pascal Ochem (LRI), Sylvain Gravier (IF)

arxiv:1010.5624 v2 · 2010-10-27 · 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{CEMGE73IXVQB2BXWHCER4C7SSX}

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	2026-05-18T01:32:08.748415Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1118627f68bd601d06f638891e0bf295f2b8433e2b66f1625fd048628839960c

Aliases

arxiv: 1010.5624 · arxiv_version: 1010.5624v2 · doi: 10.48550/arxiv.1010.5624 · pith_short_12: CEMGE73IXVQB · pith_short_16: CEMGE73IXVQB2BXW · pith_short_8: CEMGE73I

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/CEMGE73IXVQB2BXWHCER4C7SSX \
  | 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: 1118627f68bd601d06f638891e0bf295f2b8433e2b66f1625fd048628839960c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d5e373bcfc31add734e23f2fa59699b1d21b2d56b3397b824712e286d221967",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2010-10-27T09:34:56Z",
    "title_canon_sha256": "a0348ac4bec034f74a048ca559ff2c2784c96c67d243cd48915e00883d134b16"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.5624",
    "kind": "arxiv",
    "version": 2
  }
}