Pith Number

pith:LEVB6TO5

pith:2014:LEVB6TO5K2R6NV5Q3QNOLK6VAZ

not attested not anchored not stored refs pending

Finding Shortest Paths between Graph Colourings

Dani\"el Paulusma, Dieter Kratsch, Matthew Johnson, Stefan Kratsch, Viresh Patel

arxiv:1403.6347 v4 · 2014-03-25 · cs.CC · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LEVB6TO5K2R6NV5Q3QNOLK6VAZ}

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	2026-05-18T02:39:08.824269Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

592a1f4ddd56a3e6d7b0dc1ae5abd5064ed08c5c31c4742932c701adb0b42cb8

Aliases

arxiv: 1403.6347 · arxiv_version: 1403.6347v4 · doi: 10.48550/arxiv.1403.6347 · pith_short_12: LEVB6TO5K2R6 · pith_short_16: LEVB6TO5K2R6NV5Q · pith_short_8: LEVB6TO5

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/LEVB6TO5K2R6NV5Q3QNOLK6VAZ \
  | 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: 592a1f4ddd56a3e6d7b0dc1ae5abd5064ed08c5c31c4742932c701adb0b42cb8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a730d16d274cd977c49959427ec9d800d1c5e646ea9f910c3763581342ae257a",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2014-03-25T13:56:21Z",
    "title_canon_sha256": "cd2d0fe513456134990e10a27ed38c4761a506ed258958314f11fd758ef5aa84"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.6347",
    "kind": "arxiv",
    "version": 4
  }
}