Pith Number

pith:2MFK46R3

pith:2015:2MFK46R3OSM46PRZMJGBKWJ2V4

not attested not anchored not stored refs pending

Packing coloring of some undirected and oriented coronae graphs

Eric Sopena (LaBRI), Isma Bouchemakh (L'IFORCE), La\"iche Daouya (L'IFORCE)

arxiv:1506.07248 v1 · 2015-06-24 · cs.DM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2MFK46R3OSM46PRZMJGBKWJ2V4}

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	2026-05-18T01:39:54.501841Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d30aae7a3b7499cf3e39624c15593aaf3575b81cd89e1a75ab716a86e5aa09f0

Aliases

arxiv: 1506.07248 · arxiv_version: 1506.07248v1 · doi: 10.48550/arxiv.1506.07248 · pith_short_12: 2MFK46R3OSM4 · pith_short_16: 2MFK46R3OSM46PRZ · pith_short_8: 2MFK46R3

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/2MFK46R3OSM46PRZMJGBKWJ2V4 \
  | 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: d30aae7a3b7499cf3e39624c15593aaf3575b81cd89e1a75ab716a86e5aa09f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22def2d87abfe3c4467733cab87fcac2114d0f30fc18f258d97d414759d2d16d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2015-06-24T06:03:18Z",
    "title_canon_sha256": "0071a9688a12608ad15b7534d77fdd678eed8b9c432a5dcf878516d9b7c536af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.07248",
    "kind": "arxiv",
    "version": 1
  }
}