Pith Number

pith:X3MNQ7MX

pith:2018:X3MNQ7MXF7UV3NP5HAASB2A7EG

not attested not anchored not stored refs pending

Connected greedy colouring in claw-free graphs

Ngoc Khang Le, Nicolas Trotignon

arxiv:1805.01953 v1 · 2018-05-04 · 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{X3MNQ7MXF7UV3NP5HAASB2A7EG}

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	2026-05-18T00:13:59.829580Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bed8d87d972fe95db5fd380120e81f2183ae9ebfbae9ec5ee682c44a51869174

Aliases

arxiv: 1805.01953 · arxiv_version: 1805.01953v1 · doi: 10.48550/arxiv.1805.01953 · pith_short_12: X3MNQ7MXF7UV · pith_short_16: X3MNQ7MXF7UV3NP5 · pith_short_8: X3MNQ7MX

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/X3MNQ7MXF7UV3NP5HAASB2A7EG \
  | 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: bed8d87d972fe95db5fd380120e81f2183ae9ebfbae9ec5ee682c44a51869174

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3c06cf686cba29546ecdc71821e1fb85cb263cecbbe76af2a13c003c60a9712",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2018-05-04T22:33:22Z",
    "title_canon_sha256": "0ab7c013d5f71aa67ae4b1a75fdcf339b72e5f89ef7b1703dd22ceab424598b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.01953",
    "kind": "arxiv",
    "version": 1
  }
}